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Dissertations / Theses on the topic 'Manufacturing'
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Abdullah, Asif Farazee Mohammad. "Resource Conservative Manufacturing : New Generation of Manufacturing." Licentiate thesis, KTH, Maskin- och processteknologi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-40468.
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The question of resource scarcity and emerging pressure of environmentallegislations have put the manufacturing industry with a new challenge. On theone side, there is a huge population that demands a large quantity ofcommodities, on the other side, these demands have to be met by minimumresources and with permissible pollution that the earth’s ecosystem can handle.In this situation, technologic breakthrough that can offer alternative resourceshas become essential. Unfortunately, breakthroughs do not follow any rule ofthumb and while waiting for a miracle, the manufacturing industry has to findways to conserve resources. Within this research the anatomy of a large body ofknowledge has been performed to find the best available practices for resourceconservation. Critical review of the research revealed that none of the availablesolutions are compatible with the level of resource conservation desired by themanufacturing industry or by society. It has also been discovered that a largegap exists between the solutions perceived by the scientists and theapplicability of those solutions. Through careful evaluation of the state-of-theart,the research presented in this thesis introduced a solution of maximizingresource conservation i.e., material, energy and value added, as used inmanufacturing. The solutions emerged from the novel concept named asResource Conservative Manufacturing, which is built upon the concept ofMultiple Lifecycle of product. Unlike other research work, the researchdocumented in this thesis started with the identification of the problem andfrom which a ‘wish to do’ list was drawn. The seriousness of the problem andpotential of adopting the proposed concept has been justified with concreteinformation. A great number of arguments have been presented to show theexisting gaps in the research and from that, a set of solutions to conserveresources has been proposed. Finally, one of the prime hypotheses concerningclosed loop supply chain has been validated through the system dynamicsmodeling and simulation.QC 20111004
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Chang, Yoon Seok. "Improving manufacturing performance in semiconductor manufacturing enterprises." Thesis, Imperial College London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.266262.
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Pong, E. C. M. "The fit between advanced manufacturing technology (AMT) and manufacturing strategy : implications for manufacturing performance." Thesis, Aston University, 2009. http://publications.aston.ac.uk/15372/.
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Researchers posit that maximum benefit will accrue if there is a fit between the firm's strategies and its Advanced Manufacturing Technology (AMT) difftision. The existing literature discusses how the investment of AMT should be consistent with manufacturing strategy, however little attention has been given to an empirical examination of the link between manufacturing strategy and AMT, and the implications of the fit between these two on manufacturing performance. This thesis addresses that gap in the literature and thus seeks to examine the link between manufacturing strategy and AMT, and how the alignment between these two variables can affect the manufacturing performance.
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Gausman, Christian. "Implementing lean manufacturing and design for manufacturing concepts in a job shop manufacturing environment." Online version, 2009. http://www.uwstout.edu/lib/thesis/2009/2009gausmanc.pdf.
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FERNANDEZ, PAULA SUCLLA. "DESIGN-MANUFACTURING INTEGRATION IMPACT ON MANUFACTURING OPERATIONAL PERFORMANCE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26826@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIROCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO
Esta dissertação aborda o tema de Integração de Projeto e Manufatura, designado pelo acrônimo inglês de DMI (Design-Manufacuring Integration). Trata-se de um novo e crescente campo de pesquisa dentro da Gerência de Operações. DMI é definido como um conjunto de práticas de integração, coordenação e colaboração, que unificam diferentes áreas funcionais da organização (e.g., vendas, marketing, desenvolvimento de novos produtos, manufatura e compras) com a finalidade de criar valor e impacto no desempenho das empresas. Nas últimas décadas, as organizações estão enfrentando uma feroz concorrência e competem simultaneamente em qualidade, eficiência, flexibilidade e entrega de produtos cada vez mais complexos, com ciclos de vida mais curtos e demandas flutuantes. Por conseguinte, requerimentos de sistemas de planejamento e controle em empresas de manufatura são cada vez mais complexos. Esse contexto levanta a seguinte questão de pesquisa: Em diferentes contextos do ambiente em que se desenvolve a organização, as práticas de integração produzem o mesmo impacto sobre o desempenho? Resultados da pesquisa apontam para uma escassez de pesquisas empíricas rigorosas sobre o impacto do DMI no desempenho operacional da manufatura, sob a lente de efeitos moderadores da incerteza do mercado e da complexidade do mercado. Incerteza é entendida como a falta de habilidade de predizer ou prever devido à aleatoriedade do ambiente externo, que não pode ser alterado pelas ações das empresas individuais ou gerentes; e complexidade é entendido como sendo o estado ou qualidade de ser intricado ou complicado. O objetivo principal da Dissertação é identificar e medir o impacto do DMI sobre o desempenho operacional da manufatura, sob o efeito moderador da Complexidade da manufatura e da Incerteza do mercado. Os dados de 725 produtos da indústria de metal e fabricantes de máquinas (ISIC 3.1, código 28-35) foram obtidos em 21 países a partir da quinta rodada do International Manufacturing Strategy Survey e foram usados para testes das hipóteses. As escalas foram validadas por meio da análise fatorial confirmatória e analisadas com regressão múltipla hierárquica passo a passo. DMI impacta positivamente em três dimensões do desempenho operacional da manufatura (qualidade, flexibilidade e entregas). Complexidade da manufatura modera a flexibilidade e entrega, mas não a qualidade. A incerteza do mercado não apareceu como um moderador para a relação entre a DMI e desempenho operacional da manufatura. Profissionais devem perseguir implementações do DMI, em níveis mais elevados de complexidade de manufatura. Mais pesquisas devem se concentrar na incerteza do mercado, e fortalecer o construto de incerteza com a incerteza tecnológica.
Design-Manufacturing Integration (DMI) is a new and growing research field in Operations Management. The primary goal of the Dissertation is to identify and measure the DMI impact on manufacturing operational performance. The research findings point to a paucity of rigorous empirical research on the impact of DMI on manufacturing operational performance under the lens of moderating effects of market uncertainty and market complexity. Data from 725 metal products and machinery manufacturers (ISIC 3.1, code 28-35) in 21 countries from the fifth round of the International Manufacturing Strategy Survey was used for hypotheses tests. Scales were validated with confirmatory factor analysis and analyzed with hierarchical stepwise multiple regressions. DMI positively impact on the three dimensions of manufacturing operational performance (quality, flexibility, and delivery). Manufacturing complexity moderates flexibility and delivery but not quality. Market uncertainty did not appear as a moderator for the relationship between DMI and manufacturing operational performance. Practitioners should pursue DMI implementations, under higher levels of manufacturing complexity. Further research should focus on market uncertainty, and strengthen the construct of uncertainty with technological uncertainty.
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Parente, Cassandra. "Manufacturing literacies." Fort Worth, Tex. : Texas Christian University, 2007. http://etd.tcu.edu/etdfiles/available/etd-07192007-094231/unrestricted/parente.pdf.
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Золотова, Світлана Григорівна, Светлана Григорьевна Золотова, Svitlana Hryhorivna Zolotova, and A. P. Parfentiev. "Molecular manufacturing." Thesis, Вид-во СумДУ, 2009. http://essuir.sumdu.edu.ua/handle/123456789/17170.
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Jensen, Rhonda Karen. "Manufacturing dissent." Thesis, Queensland University of Technology, 2006. https://eprints.qut.edu.au/16224/1/Rhonda_Jensen_Thesis.pdf.
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There are two distinct but related parts to this exegesis. Firstly there is the production of a fifty-five minute documentary Return of the Trojan Horse, and secondly a written exegesis. The latter advances an academic argument centred around the research question - how to motivate the role of the expository documentary at a time when the documentary field is dominated by the debate between philosophical scepticism and empirical realism, while in aesthetic terms, the documentary mode itself is led by perfomative/interactive documentaries such as Michael Moore's Bowling for Columbine. My response to this question is informed in theoretical terms by the Critical Realist paradigm. The use of Critical Realism enables the exegesis to supply an integrated approach which seeks to transcend both the sceptical and the empirical realist positions. In doing so, the exegesis makes a contribution both to documentary theory and the Critical Realist paradigm itself by applying it to the field of documentary film theory. As such the exegesis addresses an absence of aesthetic theorising within the Critical Realist paradigm.
As part of the process I review, analyse and synthesise the key theoretical arguments of authors Bill Nichols, Michael Renov, Brian Winston, John Corner and Noel Carroll. The documentary sub-genres are then located within the context of these theoretical debates while the emphasis is placed on the expository sub-genre as utilised in my own documentary film, Return of the Trojan Horse. The exegesis then critically discusses Return of the Trojan Horse from a Critical Realist perspective and reflects on the strategies involved in the production of the film. As the topic of the film deals with the negative impacts of economic liberalisation, the mass media is briefly discussed within the context of a deregulated market and right-wing politics, while reviewing Herman and Chomsky's 'A Propaganda Model' in Manufacturing Consent: The Political Economy of the Mass Media, 2002.
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Jensen, Rhonda Karen. "Manufacturing dissent." Queensland University of Technology, 2006. http://eprints.qut.edu.au/16224/.
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There are two distinct but related parts to this exegesis. Firstly there is the production of a fifty-five minute documentary Return of the Trojan Horse, and secondly a written exegesis. The latter advances an academic argument centred around the research question - how to motivate the role of the expository documentary at a time when the documentary field is dominated by the debate between philosophical scepticism and empirical realism, while in aesthetic terms, the documentary mode itself is led by perfomative/interactive documentaries such as Michael Moore's Bowling for Columbine. My response to this question is informed in theoretical terms by the Critical Realist paradigm. The use of Critical Realism enables the exegesis to supply an integrated approach which seeks to transcend both the sceptical and the empirical realist positions. In doing so, the exegesis makes a contribution both to documentary theory and the Critical Realist paradigm itself by applying it to the field of documentary film theory. As such the exegesis addresses an absence of aesthetic theorising within the Critical Realist paradigm. As part of the process I review, analyse and synthesise the key theoretical arguments of authors Bill Nichols, Michael Renov, Brian Winston, John Corner and Noel Carroll. The documentary sub-genres are then located within the context of these theoretical debates while the emphasis is placed on the expository sub-genre as utilised in my own documentary film, Return of the Trojan Horse. The exegesis then critically discusses Return of the Trojan Horse from a Critical Realist perspective and reflects on the strategies involved in the production of the film. As the topic of the film deals with the negative impacts of economic liberalisation, the mass media is briefly discussed within the context of a deregulated market and right-wing politics, while reviewing Herman and Chomsky's 'A Propaganda Model' in Manufacturing Consent: The Political Economy of the Mass Media, 2002.
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HANDAL, RAED S. I. "Additive Manufacturing as a Manufacturing Method: an Implementation Framework for Additive Manufacturing in Supply Chains." Doctoral thesis, Università degli studi di Pavia, 2017. http://hdl.handle.net/11571/1203311.
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The supply chain is changing speedily and on a continuous basis to keep up with the rapid changes in the market, which are summarized as increased competition, changes in traditional customer bases, and changes in customers’ expectations. Thus, companies have to change their way of manufacturing final products in order to customize and expedite the delivery of products to customers. Additive manufacturing, the new production system, effectively and efficiently increases the capability of personalization during the manufacturing process. This consequently increases customer’s satisfaction and company’s profitability. In other words, additive manufacturing has become one of the most important technologies in the manufacturing field. Full implementation of additive manufacturing will change many well-known management practices in the production sector.
Theoretical development in the field of additive manufacturing in regards to its impact on supply chain management is rare. There is no fully applied approach in the literature that is focused on managing the supply chain when additive manufacturing is applied. While additive manufacturing is believed to revolutionize and enhance traditional manufacturing, there is no comprehensive toolset developed in the manufacturing field that evaluates the impact of additive manufacturing and determines the best production method that suits the applied supply chain strategy. A significant portion of the existing supply chain methods and frameworks were adopted in this study to examine the implementation of additive manufacturing in supply chain management. The aim of this study is to develop a framework to explain when additive manufacturing “3D printing” impacts supply chain management efficiently.
To build the framework, interviews with some companies that already use additive manufacturing in their production system have been carried out. Next, an online survey and two case studies evaluated the framework and validated the results of the final version of the framework.
The conceptual framework shows the relationship among supply chain strategies, manufacturing strategy and manufacturing systems. The developed framework shows not only the ability of additive manufacturing to change and re-shape supply chains, but its impact as an alternative manufacturing technique on supply chain strategies. This framework helps managers select more effective production methods based on certain production variables, including product’s type, components’ value, and customization level.The supply chain is changing speedily and on a continuous basis to keep up with the rapid changes in the market, which are summarized as increased competition, changes in traditional customer bases, and changes in customers’ expectations. Thus, companies have to change their way of manufacturing final products in order to customize and expedite the delivery of products to customers. Additive manufacturing, the new production system, effectively and efficiently increases the capability of personalization during the manufacturing process. This consequently increases customer’s satisfaction and company’s profitability. In other words, additive manufacturing has become one of the most important technologies in the manufacturing field. Full implementation of additive manufacturing will change many well-known management practices in the production sector. Theoretical development in the field of additive manufacturing in regards to its impact on supply chain management is rare. There is no fully applied approach in the literature that is focused on managing the supply chain when additive manufacturing is applied. While additive manufacturing is believed to revolutionize and enhance traditional manufacturing, there is no comprehensive toolset developed in the manufacturing field that evaluates the impact of additive manufacturing and determines the best production method that suits the applied supply chain strategy. A significant portion of the existing supply chain methods and frameworks were adopted in this study to examine the implementation of additive manufacturing in supply chain management. The aim of this study is to develop a framework to explain when additive manufacturing “3D printing” impacts supply chain management efficiently. To build the framework, interviews with some companies that already use additive manufacturing in their production system have been carried out. Next, an online survey and two case studies evaluated the framework and validated the results of the final version of the framework. The conceptual framework shows the relationship among supply chain strategies, manufacturing strategy and manufacturing systems. The developed framework shows not only the ability of additive manufacturing to change and re-shape supply chains, but its impact as an alternative manufacturing technique on supply chain strategies. This framework helps managers select more effective production methods based on certain production variables, including product’s type, components’ value, and customization level.
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Olson, Dana Marc. "Implementing lean manufacturing tools in a small manufacturing environment." Menomonie, WI : University of Wisconsin--Stout, 2004. http://www.uwstout.edu/lib/thesis/2004/2004olsond.pdf.
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Spring, Martin. "Manufacturing strategy, product customisation and the marketing/manufacturing interface." Thesis, University of Stirling, 1996. http://hdl.handle.net/1893/3183.
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The manufacturing strategy literature is reviewed and it is found to centre on content and process models. However, a number of other issues are present in the literature whose relationship to the central process and content models is less clear. These include the trade-off, focus, flexibility, and generic manufacturing strategies. It is noted that the manufacturing strategy literature does not fully address product customisation. The literature relating to the interface between marketing and manufacturing is found to concentrate either on the identification of conflict areas, or on strategic reconciliation between the functions. Writers in this field do give greater emphasis to product customisation. A case-study method is adopted for the research and the design involves four firms in varying industries. The firms manufacture fork-lift trucks, microswitches, telephone switching systems and diaries, respectively. The case-studies comprise quantitative and qualitative data, and each case chapter includes case-specific analysis. The analysis of all the cases finds that customisation has a very important effect on manufacturing performance. The firms have inconsistencies within their manufacturing strategies, but these are found to rest not only on the firms' manufacturing products with different volume requirements in the same plant, but also on the fact of some of the products being custom-designed. The interface between marketing and manufacturing is found to be more complex and variable than the literature would suggest. The role that customised products play in relationships with customers also varies, although this is inconsistently recognised by the firms.Based on the case-data, a model of product customisation is proposed. This incorporates customisation, flexibility, product architecture, the manufacturing strategy trade-off and the competitive criteria.
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Matuszewski, Matthew J. (Matthew Joseph). "Implementation of lean manufacturing in a remote manufacturing facility." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12383.
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Ranjan, Rajit. "Design for Manufacturing and Topology Optimization in Additive Manufacturing." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439307951.
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Ambwani, Virender K. Carleton University Dissertation Management Studies. "Impact of cellular manufacturing on flexibility of manufacturing systems." Ottawa, 1996.
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Moradlou, Hamid. "Investigation into re-shoring UK manufacturing using additive manufacturing as a method to enable manufacturing postponement." Thesis, Loughborough University, 2016. https://dspace.lboro.ac.uk/2134/23752.
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This thesis describes case study research investigation into re-shoring UK manufacturing using Additive Manufacturing as a method to enable manufacturing Postponement. After identifying the gap in the knowledge by conducting a literature review, the author aims to understand the primary motivation behind the re-shoring phenomenon in the UK. The initial investigation is done by targeting the UK based organisations that have been involved in supporting the re-shoring phenomenon. As a result, lack of responsiveness was found to be the key factor behind re-shoring in the UK. This is then followed by an investigation considering this issue from countries to which manufacturing has been offshored in the past, in particular, India. The research studies the factors that influence this decision from Indian industries perspectives and investigates what the key issues are behind the lack of responsiveness in India. This is whilst India is one of the most attractive offshoring destinations among the other low-cost countries. This introduces the next objective of this research which is to identify a strategy that could help the industries to address such issues. Consequently the concept of Postponement was selected as a strategy and Additive Manufacturing (AM) was identified as a manufacturing method that could enable Postponement. Such a combination can enable companies to shorten their lead-time and be more responsive to their domestic customers. This study also develops a clear picture of re-shoring in the UK and bridges this phenomenon to the new generation of technologies and emerging mega trends. It particularly focuses on AM technologies as an enabling manufacturing method the Industry 4.0. The results obtained from the survey study indicate that there is a positive view towards applicability of AM technologies within the supply chain of the re-shoring companies. The final section of this thesis aims to iii provide a series of case studies where AM technologies are used to further enable companies to reduce their lead time and achieve more customisation. It shows that the companies can re-shore their production activities back to the home country by using AM technologies and engage in a local supply chain. Therefore this study adds insight into manufacturing challenges related to re-shoring and provides a potential solution for the companies that are involved in the production of high value added production. The results from this section indicate that the re-shoring companies will be capable of accommodating product changes and process changes. They can also reduce their inventories, production lead-time, and transportation costs, meanwhile increase product customisation.
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Sun, Bei, and Mehdi Poosti. "Long distance design-manufacturing interaction: Perspectives from Chinese manufacturing site." Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Industriell organisation och produktion, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-15571.
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After opening of China‟s borders to foreign trade and investment, over the last decades, a growing number of foreign company‟s attention has been drawn to China due to the immense market potential, and a huge source of cheap labor. Swedish industry, however, is not an exception from this tremendous trend in the world, as their recent acquisitions have given access to production facilities in China. This transfer of product/production from Sweden to China has emerged two major concerns including Design and Manufacturing (DM) interaction between geographically distant settings, in conjunction with inter-cultural considerations. Lately, the concept of interaction between DM has been growing in the scholar thoughts. Typically, different challenges such as different personalities and cultural differences exist towards having an enhanced collaboration during the development process. This study uses a framework for integration mechanisms which comprises number of approaches such as DfX, CE, cross-functional teams, and modern quality management. Second, this study by carrying out 6 interviews within the Chinese plants in four Swedish-Chinese based companies identifies the main challenges of interaction of design in Sweden and manufacturing in China (2 pilot companies and 2 target companies). The most frequent challenges are spotted as cultural clashes, ineffective collaboration, frustrating verification process, inadequate management system, and lack of technical knowledge. By including cultural attributes, a literature based classification is adopted to classify the determined challenges. Eventually, this study comes up with suggestions for managing challenges associated with geographical distance. More face-to-face interactions instead of electronic communications in order to have a better insight to the cultural differences (such as trust, lose face, and direct/indirect confrontation), cross-functional integrations, localizing the verification process, facilitating the early involvement of suppliers, rotation of the expertise across projects, use of DfA index, and function-wise motivation system, are stated in our recommendations to cope with these challenges. Besides, the influence of reward system on challenges of dispersed settings, is proposed to be investigated for further studies.
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Gabriel, Anthony J. "The effect of internal static manufacturing complexity on manufacturing performance." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1181251489/.
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Pai, Vinod. "Simulation of two manufacturing systems for a car manufacturing company." Ohio : Ohio University, 1997. http://www.ohiolink.edu/etd/view.cgi?ohiou1177087066.
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Al-Shuaibi, Khaled M. "Manufacturing strategy : an analysis of the Saudi manufacturing private sector." Thesis, University of Glasgow, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263541.
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Sharifi, Hossein. "A methodology for assisting manufacturing organisations to implement agile manufacturing." Thesis, University of Liverpool, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399167.
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Tell, Eric, and Alexander Ökvist. "SMART MANUFACTURING AND METROLOGY : How can metrology enable smart manufacturing?" Thesis, KTH, Industriell produktion, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244837.
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To create the possibilities needed for more precise simulations and calculations regarding manufacturing changes in the equipment and new technology has to be implemented. This work investigates possible solutions for the gathering of information in manufacturing companies. To get a wider understanding of the current situation in manufacturing we have also researched some possible solutions and applications that can be applied in manufacturing. The work consists of a literature study regarding the possible solutions and technologies of smart manufacturing complemented by a survey and a follow-up interview with scientist and employees’ at large corporations to get their view of the business today and possibilities for the future. The benefits from a successful implementation of metrology can help companies toward success in the transformation toward smart manufacturing. This report also investigates what is needed for implementing smart manufacturing and the transformation in manufacturing companies to get economic advantages with a technological adaption. It also covers the possible difficulties and problems that may occur when this implementation is performed.Vid skapandet av grunder för att möjliggöra beräkningar och simulering för produktion så finns det krav på att nya verktyg och ny teknik implementeras. Detta arbete undersöker möjliga lösningar för att samla in information i industriella företag samt hur dessa företag ska gå tillväga för att möjliggöra denna omställning. För att få en bättre förståelse för området har vi även undersökt några möjliga applikationer som kan implementeras inom industrin. Arbetet består av en litteraturstudie där vi undersökte området smart manufacturing samt möjliga lösningar och tekniker som krävs för att uppnå detta. Som komplement till detta skapades även en enkät som baserades på området, svaren från enkäten följdes upp av intervjuer med deltagarna. Deltagarna var särskilt utvalda personer på större industriföretag eller institutioner vilka hade erfarenheter inom området metrologi. Detta användes som utökad grund för att få både en uppfattning av dagsläget samt idéer inför framtiden. Fördelarna med en lyckad implementering av metrologi kan hjälpa företag att ta steget mot att applicera smart manufacturing i deras produktion. Detta kan möjliggöra enklare produktion för operatörer men även ekonomiska fördelar för företaget i helhet. Arbetet tar även upp möjliga problem eller svårigheter som kan ske under denna implementation
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Couch, Christopher Edward. "Modeling and simulation of manufacturing flexibility in circuit board manufacturing." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12351.
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Salzman, Rhonda A. (Rhonda Ann) 1978. "Manufacturing system design : flexible manufacturing systems and value stream mapping." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/82697.
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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Includes bibliographical references.
by Rhonda A. Salzman.
S.M.
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Daghestani, Shamil F. "Design and Reconfiguration of Manufacturing Systems in Agile Manufacturing Environments." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/31125.
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Agile manufacturing has become a topic of great interest over the past several years. The entire domain of modeling and analyzing different types of agile manufacturing environments and systems, however, remain largely unexplored. The objective of this research is to provide fundamental insight into how manufacturing systems should be designed and reconfigured over time in order to cope with different agile manufacturing environments. To achieve this objective, three approaches are developed and integrated into one simulation-based model. The first approach is used to model different agile manufacturing environments. The second approach is used to define various ways in which manufacturing systems can be designed and reconfigured (i.e., design/reconfiguration strategies). The third comprises the cost and objective functions used to measure system performance when different design/reconfiguration strategies are used in different agile manufacturing environments. Based upon the assumptions adopted during this thesis, the experimental work performed suggests that despite the fact that agility incurs high costs, agile manufacturing systems are indeed necessary for certain manufacturing environments in which product life cycles are short yet demand per product type is high. Therefore, it is important in certain manufacturing environments to focus on reconfiguration in short periods of time, even at the expense of higher reconfiguration costs.Master of Science
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Gildenblatt, Robbie B. "A Methodology Incorporating Manufacturing System Capacity in Manufacturing Cost Estimation." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1357314439.
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Eggebrecht, Jared O. "Impact of China-based manufacturing on greater Wisconsin manufacturing companies." Online version, 2003. http://www.uwstout.edu/lib/thesis/2003/2003eggebrechtj.pdf.
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UL, HAQ IJAZ. "Distributed Manufacturing: Effects on Servitization, Quality Systems and Manufacturing Services." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2809313.
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Mallon, Michael John. "Manufacturing technology acquisition." Thesis, Cranfield University, 2002. http://hdl.handle.net/1826/3417.
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This thesis concerns the acquisition of newly developed production
equipment in factories. Types of Manufacturing Technology Acquisition
(MTA) can range from in-house development through to outright purchase
from a supplier. MTA projects often fail because the new equipment fails to
perform well enough or the expected financial benefits are not achieved.
The purpose of this research has been to find out how to select the right
manufacturing technology acquisition projects, and having chosen them,
how to make them successful.
Very little guidance on this subject was found in the literature. Therefore the
approach taken was to adapt techniques widely used in the much more
deeply researched field of New Product Development (NPD). The Success
Factor method was applied by conducting interviews with managers in a
number of factories to develop lists of factors thought to affect success or
failure in their MTA projects. The Portfolio method from NPD was adapted
to the case of managing a total MT`A budget, and developed through its use
in three annual cycles of equipment acquisition in the researcher's Company.
A formula for Expected Commercial Value in NPD was modified to
become Expected Manufacturing Benefit, and tried out in practice. An
important consideration in manufacturing equipment projects was
discovered to be the replication of projects which had proved successful,
and ways to incorporate this factor into the project selection procedure were
developed. A detailed case study of a single project was carried out, which
verified the validity of the findings at the level of a single project. This case
study also revealed the considerable impact that corporate strategic events
can have on technology acquisitions. This led to a case study on corporate
strategy in the Company being carried out.
Finally the findings were brought together to present a complete model for
managing MTA.
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Saxer, Martin. "Manufacturing Tibetan medicine." Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527370.
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Chan, Kwok-keung, and 陳國強. "Glass manufacturing centre." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1994. http://hub.hku.hk/bib/B31981914.
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Shawcross, Judith Karen. "Manufacturing excellent engineers." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/279677.
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Higher Education Institutions (HEIs) have been criticised by employers, government and graduates themselves, for not adequately developing required work skills. An example of practice that does develop student skills is a short industrial placement (SIP) where students are expected to solve a real problem in a company, in two weeks, working with one other student. This practice occurs in a one year Masters programme at Cambridge University Engineering Department. This work studies the SIP practice to understand why it is effective and determine lessons that could contribute to solving the wider skills problem. A five year research timeframe, coupled with an annually run programme, enabled a multi-stage study using an Engaged Scholarship methodology. The first-stage was an exploratory study that investigated the initial development of SIP skills, using simulated experiences, in a taught HE based module. Skills development was found to be a complex multi-component process. A theoretical skills development framework was constructed from literature and compared with practice. It was determined that five simulated SIP experiences provided the student with sufficient skills to undertake a SIP in practice and, the most significant problem was that SIP skills were not well defined. The second-stage focussed on defining skills. Skills were found to be context specific and defining skills required both the associated task and its context to be known. With tasks found to be both essential to defining skills and effective in describing what graduates do in practice, a SIP task framework was constructed which was tested on 80 different SIPs in one academic year. The resulting framework comprised twelve problem-solving process-stages, that in total contained 64 different tasks, and five generic task domains. These generic domains were investigated in the third-stage of this research. These were found to be more extensive and complex than anticipated resulting in a reconfiguration of the SIP framework, the generation of SIP specific domain descriptions and partial completion of task frameworks to describe each domain. This research has generated a plausible skills development theory for HEIs, and task frameworks to describe a SIP. Further work has been identified to refine the task frameworks and to continue work on the proposed skills development theory.
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Bastock, Paul. "Manufacturing novel fibre." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/386650/.
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The work described in this thesis has been funded by the “Engineering and Physical Sciences Research Council’s Centre for Innovative Manufacturing in Photonics” and has been part of the work undertaken by the “Non-Silica Glasses and Related Fibre Technology” work package, within the “Novel Glass and Fibre” group at the Optoelectronics Research Centre. Original contributions to the field include the development of a novel fibre drawing tower, which has allowed over three hundred fibre draws to be accomplished, resulting in composite metal-glass fibre and infrared transmitting fibre manufacturing processes being established. Most significantly, a refined fibre drawing procedure to produce up to 50 km of continuous glass-encapsulated microwire has been created. Fibre has been fabricated with an outer diameter of around 23 μm and inner diameter of around 4 μm, featuring standard deviations of just 2.2 and 0.8 μm for outer and inner diameters respectively, over kilometres of length. A large portion of the work reported in this thesis has been in collaboration with industrial and academic partners, including Rolls Royce, Shell, National Physical Laboratory, Nanyang Technological University, Laboratory of Ultrafast Spectrometry and others. Characterisation of optical materials has founded relationships with many partners including the University of Oxford and SPI Lasers Ltd. Analysis has been carried out for many groups within the Optoelectronics Research Centre, including the Photovoltaic, Compound Glass, Silica Fibre Fabrication and Integrated Photonics groups. Other academic units at the University of Southampton including the ‘Electronics and Computer Science’, Chemistry and ‘Engineering and the Environment’ departments have also had valuable material characterisation performed with the use of the facilities described in this work. Impurity analysis of optical glasses and raw materials has established a relationship with Northern Analytical Laboratory Inc., who has provided continued analysis for the advancing glass melting facility mentioned in this thesis.
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Pešek, Jan. "Manufacturing Execution Systems." Master's thesis, Vysoká škola ekonomická v Praze, 2013. http://www.nusl.cz/ntk/nusl-199711.
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The diploma thesis covers principles, history, implementation process and selected real MES systems. First part is focused theoretically and covers an introduction to topic of MES systems based on current literature. In this part main terms, principles and historical evolution are covered. Next the thesis describes implementation process in more detail and identifies its critical factors. This process is compared with implementation process of general applications and main differences are identified. In next part of the thesis metrics system for measuring of MES systems is established. Based on these metrics selected MES systems are introduced and are evaluated. Then these systems are compared and their main differences are identified with an explanation. Last part of the thesis is focused on system Apriso FlexNet (hereinafter FlexNet). In this part FlexNet is described in more detail and critical evaluation is made according to identified principles in theoretical part and characteristics of other presented systems. Trough fulfilling its aims the thesis provides introduction to the topic of MES systems, presents several selected systems and compares them. Last but not least FlexNet system is introduced in more detail with its critical evaluation.
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Van, Dyk Liezl. "Manufacturing execution systems." Diss., University of Pretoria, 1999. http://hdl.handle.net/2263/29348.
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The term Manufacturing Execution Systems (MES) was created in 1990 by Advanced Manufacturing Research (AMR) to describe the suite of software products which enables the execution of manufacturing through the integration of planning and control systems. The purpose of this dissertation is to determine the current status of MES and to investigate the possible role of the Industrial Engineer in the development, implementation and use of MES. To achieve this objective, the most commonly accepted, recent and relevant definitions, business models, functions and developments of MES are investigated. Based on these, a new MES Function Matrix is developed and validated by a case study. Finally, Industrial Engineering is related to MES and the role of the Industrial Engineer promoted. The emergence of MES is a result of the evolution of three interrelated elements, namely manufacturing strategies, manufacturing planning and control systems and information technology. The development of global markets and the requirement for agile manufacturing led to the need for MES. The evolution of various aspects of Enterprise Resource Planning (ERP), and more specifically Manufacturing Planning and Control (MPC) systems, is discussed as part of the investigation of the development of MES. The Three-Layer-model and REPAC-¬model by AMR Research, as well as variations of these models compiled by MESA ("International MES Association"), are investigated. Manufacturing execution is absent in traditional MPC models. Modern models, such as the Three-Layer-model, suggest an execution layer to be inserted between the planning and control layers. The investigation of the function models of McClellan and MESA International indicates that discrepancies exist between these models with regard to the functions of MES. A new MES Function Matrix is developed to address such shortcomings and is applied to a case study of DIAMES, a software product used by Aberdare Cables and promoted as an MES product. As an MES developer, the Industrial Engineer can act as designer, planner and innovator. The greatest value can, however, be added by the Industrial Engineer as integrator to ensure that horizontal plant-wide execution takes place, and not only vertical "islands of automation" integrated with planning systems. In order to accomplish this, the Industrial Engineer needs to fulfill the roles of boundary-spanner, facilitator, coordinator, analyst, chairperson, decision-maker, as well as trainer or educator. MES can also be used by the Industrial Engineer as a tool, for example as part of a program of continuous improvement. The identification of the relationship between the expertise of the Industrial Engineer and the roles to be played within the MES arena gave birth to the establishment of an MES research initiative at the Department of Industrial and Systems Engineering of the University of Pretoria.Dissertation (MEng (Industrial Engineering))--University of Pretoria, 2007.
Industrial and Systems Engineering
unrestricted
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Chan, Kwok-keung. "Glass manufacturing centre." Hong Kong : University of Hong Kong, 1994. http://sunzi.lib.hku.hk/hkuto/record.jsp?B25946870.
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COOK, KATHRYN LOUISE KRAMER, Dena Moline, Yirla Morehead, and Stefka Ormsby. "FROZEN YOGURT MANUFACTURING." Thesis, The University of Arizona, 2008. http://hdl.handle.net/10150/190435.
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Bhattacharya, A. K. "The new manufacturing." Thesis, University of Warwick, 1999. http://wrap.warwick.ac.uk/111078/.
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The world of manufacturing organisations has changed considerably in the past few years which give rise to three research areas which constitute the context of what i have called The New Manufacturing 1. What is the current state of affairs in the trading relationships between partners in the supply chains and what would be a best practice model for such relationships? 2. What is the impact on the strategy process of the changes in the trading relationships and focus on cross-functional and cross-organisational business processes? 3. How do you integrate the new competitive factors of speed and flexibility with the need for agility and re-invention and implementation of world class lean manufacturing practices? The portfolio is divided into three distinct parts. The first part develops the ‘external context’ of manufacturing organisations by analysing the trends in trading relationships between supply chain partners through a EU funded research project on European automotive industry. The second part explores the link between the ‘internal’ and the ‘external’ context by developing the concept of ‘repositioning’ as a new dimension to existing strategy development approaches. The third part explores the ‘internal context’ and seeks new solutions to issues in strategy formulation and manufacturing systems design, using ‘time’ and ‘turbulence’ as key change drivers along with the traditional ‘focus’ approach. The analysis of the ‘external context’ uses a cohesive ‘best practice’ model incorporating 11 characteristics as the fixed point comparator for analysing 24 supply chains in 6 car assemblers. The findings show significant changes in both the ‘structural’ and ‘relationship management’ characteristics such as greater outsourcing and systems purchase, single sourcing at part number level, greater design and development delegation by the vehicle manufacturers, open book costing, leaner manufacturing pipeline and long term contracts. A key finding is the emergence of ‘multi-customer’ suppliers - suppliers with close, non-adversarial relationships with a number of key customers. This multi-customer structural feature was investigated using four theoretical trading structures in a detailed case study of an automotive supplier and was found to reflect characteristics of all four. The changes in the supply chains underlined the need for a ‘re-positioning’ methodology for suppliers hoping to change their ‘value boundary’, in addition to existing strategy formulation methods, which did not address this specific requirement. Thus the second part of the portfolio proposes a new ‘repositioning’ methodology, which represents the link between the external and the internal context, which was then validated through a study of a supplier who had ‘re-positioned’ and through application in two SMEs. The ‘internal context’ analysis represents the major part of the portfolio, and was carried out at two companies using approaches and techniques new to the companies. In one of them, a new process focused strategy formulation was used to develop strategic goals for the two key processes. In the same company, a complete manufacturing analysis was carried out using ‘time’ as the strategic driver, as part of an overall ‘systems’ approach, which was a major change for the company. As a result, a number of changes were proposed of which some have been implemented and a key success has been the reduction of manufacturing lead time from over 6 weeks to 3 weeks or less with corresponding reduction in inventory. At the other company, the project scope was limited to improving performance of machining cells. Again using ‘time’ as a key driver of change as part of a ‘systems’ approach, a number of new practices were introduced which led to improvement in lead times, inventory and service levels for pilot components. A key innovation in both companies was the development of the concept of ‘turbulence' to analyse manufacturing issues which was then integrated with the well known ‘focus’ approach and the more recent ‘time compression’ into a generic multi-dimensional approach to the design of manufacturing systems.
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Ivantysynova, Lenka. "RFID in manufacturing." Doctoral thesis, Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät, 2009. http://dx.doi.org/10.18452/15942.
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In dieser Doktorarbeit wird untersucht, wie Radiofrequenz-Identifizierung (RFID) zu einer Optimierung von Produktionsprozessen beitragen kann. In den ersten Kapiteln wird analysiert, welchen potenziellen Nutzen die Anwendung von RFID für Prozessoptimierungen ergibt und welche Herausforderungen daraus erwachsen. Diesbezüglich wurden sechs Fallstudien in Produktionsbetrieben durchgeführt, in denen die Autorin mögliche RFID-Szenarien untersuchte. Basierend auf den Fallstudien wertet sie sieben RFID-Anwendungsszenarien aus. Diese sind entweder ein Ersatz von Barcodes oder eine Anwendung, die nur mit Hilfe von RFID ermöglicht wird. Kap. 4 und 5 beschäftigen sich mit der Frage, wie RFID in die existierende IT-Infrastruktur eingebettet werden kann. Dafür evaluiert die Autorin zunächst generelle IT-Infrastrukturen bei verschiedenen, produzierenden Unternehmen, indem sie weitere sieben Fallstudien durchführt. Im Anschluss erstellt sie Leitlinien für eine Integration von RFID in existierende Softwaresysteme, bei der die in diesen Fallstudien gewonnenen Anforderungen erfüllt werden. Für die Produktion gibt es noch immer keine dedizierten Modelle für die Berechnung von quantifizierbaren und die Abschätzung von nicht-quantifizierbaren Nutzen und Kosten von RFID-Einführungen. Daher untersucht die Autorin in Kap. 6 quantifizierbare und nicht-quantifizierbare Kosten und Nutzen von RFID-Einführungen in der Produktion. In Kap. 7 untersucht die Autorin RFID-Anwendungen, die über die Unternehmensgrenzen hinausgehen: RFID kann, wenn es in inter-organisatorischen Systemen implementiert ist, einen Informationsaustausch in Echtzeit gewährleisten. Jedoch stellte sie bei den Unternehmen neben den unternehmensinternen auch in den inter-organisatorischen RFID-Szenarien Vorbehalte gegenüber RFID-Einführungen fest. Daher analysiert und identifiziert sie wichtige Faktoren für die Einführung von RFID in Lieferketten am Beispiel der Lieferkette der Automobilindustrie.In this thesis, the author investigates how radio-frequency identification (RFID) technology can contribute to the optimization of production processes. In the first chapters the author analyzes potential benefits and challenges of using RFID to improve production processes. To this end, she conducted case studies at six German manufacturing enterprises in which she explores possible RFID scenarios. Based on the case studies she evaluates seven use cases for RFID. They are either a replacement of bar codes or an application that can only be realized using RFID. Furthermore, the autor evaluates which challenges the manufacturer has to face when applying RFID. Chapters 4 and 5 deal with the question of how RFID can be embedded into an existing IT infrastructure. For this the author first evaluates general IT infrastructures at diverse manufacturers by conducting seven additional case studies. She then designs guidelines for integrating the RFID requirements obtained from the case studies into existing software systems, showing where RFID data processing can fit in. The manufacturing domain still lacks dedicated models for evaluating costs and benefits of an RFID rollout especially concerning the intangible, non-quantifiable aspects of such an investment. Therefore, Chapter 6 presents such a model. In Chapter 7 the author looks beyond inter-enterprise RFID applications in manufacturing: RFID can ensure real-time information sharing when implemented in inter-organizational systems along the supply chain. However, besides challenges in intra-organizational scenarios of applying RFID in production processes, the author can also observe an inter-organizational reservation of embedding RFID in supply chains. Therefore, the author analyzes and identifies important determinants of adopting RFID in supply chains; taking the automotive as an example.
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Herron, Colin. "A methodology to disseminate selected lean manufacturing tools into general manufacturing." Thesis, University of Newcastle Upon Tyne, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.505838.
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Liu, Shaofeng. "Manufacturing information and knowledge models to support global manufacturing co-ordination." Thesis, Loughborough University, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.414076.
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Co-ordination decisions have been recognised as crucial to the success of enterprises to realise global manufacturing strategies. Information sharing and integration between collaborating members is one of the fundamental requirements of global manufacturing co-ordination. This thesis reports the research on information and knowledge model support for global manufacturing co-ordination, and focuses on the understanding of the information and knowledge structure of global manufacturing capability as well as the necessary interaction mechanisms with product and order related information. A new information and knowledge structure has been explored to represent global manufacturing capability. In addition, a product model and an order model have also been identified to provide product information and order information respectively. The information and knowledge requirements have been explored through a multiperspective modelling approach including IDEFO activity modelling, IDEF3 process modelling, and UML. The structure of the main classes in the information and knowledge models has been defined and the relationships between the classes have been specified. The new defined manufacturing model structure consists of four main classes. It not only comprises process and resource, two basic and important types of manufacturing capabilities demonstrated by a series of applications, but also includes configuration and knowledge classes. The definition of the configuration class in the manufacturing model provides the potential for a global enterprise to access dynamic and unlimited resources on a network, with flexible capabilities to respond to global market requirements. The knowledge class in the manufacturing model enables the retrieval of preferred solutions for global manufacturing co-ordination decisions under different conditions or combinations of conditions, and thus makes the manufacturing model more intelligent. The information and knowledge structures have been tested by experimental systems based on the OODBMS ObjectStore SP8.0 and Visual C++ 6.0, and explored with a case study from the automotive industry. It has been shown that the manufacturing model together with the product model and the order model provide effective support for global manufacturing co-ordination decisions.
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Afazov, Shukri. "Simulation of manufacturing processes and manufacturing chains using finite element techniques." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10827/.
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This thesis presents work on the simulation of manufacturing chains, simulation of manufacturing processes (casting, forging, shot-peening and heat treatment) and fatigue life prediction by using the finite element method (FEM). The objectives and the contributions of this thesis consist of development of mathematical algorithms and techniques for mapping and transferring FE data (stresses, strains, displacements, etc.) from macro-to-macro and micro-to-macro FE models among different FE solvers and meshes. All these features have been implemented into a new finite element data exchange system (FEDES). FEDES has been developed to simulate manufacturing chains by using FE techniques. Extensive research has been carried out on the simulation of investment casting processes of aero-engine parts under equiaxed and directional cooling. Methodologies for predicting the component life undergoing low cycle fatigue (LCF) and high cycle fatigue (HCF) have been developed. Life prediction based on the effect of the residual stresses obtained from micro machining and shot-peening processes has been investigated. FEDES has been used to simulate two manufacturing chains where the residual stresses and the distortions after each manufacturing process have been passed to the next process of the chain. Manufacturing chain simulation including casting, forging and heat treatment has been carried out on a simple parallelepiped geometry. A second manufacturing chain simulation has been performed on an aero-engine vane component which includes the following manufacturing processes: metal deposition, welding, heat treatment, machining and shot-peening. An investment casting simulation under equiaxed cooling of the bottom core vane (BCV) component of the aero-engines vane has been performed. The gap formation and the gap conductance have been studied and implemented in the analyses. The main goal is to investigate the residual stresses in the BCV cast with Inconel 718 material. Two FE solvers (ABAQUS and ProCAST) have been used for validation purposes. An investment casting simulation under directional cooling in a Bridgman furnace of a high pressure turbine blade (HPTB) with CMSX-4 material has been carried out. The effect of the withdrawal velocity on the temperature and the residual stresses of the HPTB cast has been investigated.
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Bamber, C. J. "Agile manufacturing in UK aerospace manufacturing small to medium size enterprises." Thesis, University of Salford, 2002. http://usir.salford.ac.uk/14840/.
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Tle North West of the UK has been described as probably the most important centre of high technology outside the south of England. The aerospace sector is a major UK employer and accordingly, is an important part of the North West economy. However, the aerospaces upply chain approach is changing, ajýd that change impacts on the aerospace manufitcturing small to medium size enterprises( SMEs) in the region. Many aerospacec.o mpaniesa re claiming to be adopting both agile and lean manufacturing principles. Research has indicated thai the knowledgea nd understandingo f agility in aerospaceis modesta nd consequentlyt he difference between lean and agile is not well known. This thesis aims to assessa gile manufacturingw ithin UK aerospacem anufacturingS MEs. The specific objectives are derived to provide focus for the research activities, in order to fulfil the specific aim of the reseaich in a structured and scientific manner. Following an extensive literature survey of agile manufacturing, other relevant manufacturing strategic frameworks, changem anagementr, esponseto changei n manufacturinge nvironmentsa nd aerospaceS MEs a theoreticalm odel of Agile Manufitcturing within the UK aerospaceS MEs has beend eveloped. Ile theoretical model of Agile Manufacturing within the UK aerospace SMEs was used to assess agile manufacturing in four UK aerospace manufacturing SMEs (case study organisations). From an evaluation of the case study organisations and comparisons with the theoretical model, the findings enhance the understanding of Agile Manufacturing theory, concepts and practice. Additionally, the theoretical model presented in this thesis is considered appropriate for use in other aerospace manufacturing SMEs and is presented as a holistic aerospacea gile manufacturinga ssessmentot ol. The research has shown the complexity and interrelationship between four agility enabling integrated sub-systems of agile manufacturing strategy, external motivators, organisational psychology and operational characteristics. The key findings of the research indicate that the case study organisations do not actively promote an agile manufacturing strategy that takes into consideration the organisational psychology and its influence on the performance of the operational characteristics of agility. Likewise, not all the external motivators of agility are considered when developing and deploying their organisations' strategies. Consequently, the role of the agile strategy process, teams and organisational change are considered as important issues that need addressing by these case study organisations.
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Chan, Wai Kuen. "Configurations in manufacturing planning and control (MPC) systems : manufacturing environment perspective." Thesis, Loughborough University, 2001. https://dspace.lboro.ac.uk/2134/7531.
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The quest for a viable manufacturing planning and control (MPQ system that supports organizational strategy is a crucial issue in operations management. Previous studies on MPC discipline have paid little attention on the basic performance differences that associated with strategic and organization environmental issues. This thesis addresses these issues by exploring the configurations in MPC systems in a macro perspective that integrates several areas, namely: organizational environment, competitive strategy, manufacturing strategy, supply chains, NIPC system and organizational performance. This thesis attempts to shift the conventional research focus of NTC processes and mechanisms to enviromnent-strategy-system-performance (E-S-S-P) paradigm. In this respect, the configurational research in WC systems requires the study of a wider body of knowledge (Chapters 2- 5) including: (1) a detailed assessmenot f the current state-of-the art of MPC practices; (2) the review of the relations between strategies and MPC systems; (3) a study of organization environmental variables and their influences; and (4) an identification of methodological issues relating to configuration research. Thirty hypothesized relationships are proposed (Chapter 6) and tested (Chapters 8 and 9). The research methodology has been concentrated in three distinctive areas. The first area is in the design of instruments (Chapter 7) for the measurement of manufacturing environments, competitive strategy, manufacturing strategy, and MPC systems in several manufacturing industries. Five databases are gathered to test the hypotheses, i.e. trade census and industrial production statistics, published business data, published survey data (for content analysis), data from field visits, and questionnaire survey data. The second area is the construction of a 3-dimensional organization environment (Chapter 7). Besides, a reference model is proposed that takes into account of the theory of autopoiesis and enacted environment, based on several field visits (Chapter 8). The third area is the study of correlations between the organizational environment, competitive strategy, manufacturing strategy, and NIPC systems (Chapter 9). The quantitative analyses are used such as Pearson correlation, linear regression, and causal modeling. There are seven main contributions of this thesis: (1) It is the first study of the configurations in NTC systems that will have significant theoretical implications for the development of NTC practices. (2) It develops the network relationships of E-S-S-P research paradigm. (3) It broadens the knowledge in operations management by exploring the hypothesized relations between organizational environment, strategies, supply chains and MPC systems. (4) It shows the adoption of new thinking, i. e. the theory of autopoiesis, in the configuration study. (5) It develops a reference MPC model that adds to the body of knowledge in this discipline. (6) It constructs the task environment classification framework for the study related to manufacturing environment in Hong Kong. (7) It proposes path modelling analysis to explore the causal relationships of WC system and other organizational variables, which is rarely applied in this field.
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Schlechter, E. J. (Emile Johan). "Manufacturing intelligence : a dissemination of intelligent manufacturing principles with specific application." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52927.
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Thesis (MEng)--University of Stellenbosch, 2002.ENGLISH ABSTRACT: Artificial intelligence has provided several techniques with applications in manufacturing. Knowledge based systems, neural networks, case based reasoning, genetic algorithms and fuzzy logic have been successfully employed in manufacturing. This thesis will provide the reader with an introduction and an understanding of each of these techniques (Chapter 2 & 3). The intelligent manufacturing process can be a complex one and can be decomposed into several components: intelligent design, intelligent process planning, intelligent quality management, intelligent maintenance and diagnosis, intelligent scheduling and intelligent control. This thesis will focus on how each of the artificial intelligence techniques can be applied to each of the manufacturing process fields. Chapter 5 Chapter 6 Chapter 7 Knowledge based systems Neural networks Fuzzy logic Case based reasoning Genetic algorithms Chapter 8 Chapter 9 Chapter 10 Manufacturing intelligence can be approached from two main directions: theoretical research and practical application. Most of the concepts, methods and techniques discussed in this thesis are approached from a theoretical research point of view. This thesis is also aimed at providing the reader with a broader picture of manufacturing intelligence and how to apply the intelligent techniques, in theory. Specific attention will be given to intelligent scheduling as an application (Chapter 11). The application will demonstrate how case based reasoning can be applied in intelligent scheduling within a small manufacturing plant.
AFRIKAANSE OPSOMMING: Kunsmatige intelligensie bied 'n verskeidenheid tegnieke en toepassings in die vervaardigingsomgewing. Kennis baseerde sisteme, neurale netwerke, gevalle basseerde redenasie, generiese algoritmes en wasige logika word suksesvol in die vervaardigingsopset toegepas. Dié tesis gee die leser 'n inleiding en basiese oorsig van metodes om elk van die tegnieke te gebruik (hoofstuk 2 & 3). Die intelligente vervaardigingproses is 'n komplekse proses en kan afgebreek word in verskeie komponente: intelligente ontwerp, intelligente prosesbeplanning, intelligente gehaltebestuur, intelligente onderhoud en diagnose, intelligente kontrole en intelligente skedulering. Hierdie tesis sal fokus op hoe elk van die kunsmatige intelligente tegnieke op elk van die vervaardigingprosesvelde toegepas kan word. Hoofstuk 5 Hoofstuk 6 Hoofstuk 7 Kennis gebaseerde sisteme Wasige logika Neurale netwerke Gevalle baseerde redenasie Generiese algoritmes Hoofstuk 8 Hoofstuk 9 Hoofstuk 10 Vervaardigingsintelligensie kan vanuit twee oogpunte benader word, naamlik 'n teoretiese ondersoek en 'n praktiese aanslag. Die meeste van hierdie konsepte, metodes en tegnieke word in hierdie tesis vanuit 'n teoretiese oogpunt benader. Die tesis is daarop gerig om die leser 'n wyer perspektief te gee van intelligente vervaardiging en hoe om die intelligente tegnieke, in teorie, toe te pas. Spesifieke aandag sal gegee word aan intelligente skedulering as 'n toepassing (Hookstuk 11). Die toepassing sal demonstreer hoe gevalle baseerde redenasie toegepas kan word in intelligente skedulering.
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Cusihuallpa-Vera, Ximena, Evelyn Suarez-Montes, Juan Quiroz-Flores, and Jose Alvarez. "Improvement of the manufacturing of aluminum pots using lean manufacturing tools." Springer, 2021. http://hdl.handle.net/10757/656011.
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The research is based on the problems encountered in the production process of companies in the metalworking sector. The problem arises from the low availability of machines in the production process due to working conditions (39.5%), poor maintenance management (40.3%) and poor-quality control (20.2%) that generate low profitability for business. As a solution, Lean Manufacturing tools are implemented to improve the process and increase profitability. The improvement proposal consists of a series of stages: first, the definition of indicators for the measurement of the variables; then, the design and implementation of a pilot in the production process and, in parallel, a simulation system will be designed to evaluate the long-term results. The document concludes that the implementation of the proposed tools will increase the availability of machines and an OEE to 55%, avoiding defective products and reducing reprocessed products by 4%.
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Jin, Ning. "Perceptions on the Status of Lean-Manufacturing in Thermoplastics-Manufacturing Industry." TopSCHOLAR®, 2017. http://digitalcommons.wku.edu/theses/1916.
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The current study gathers thermoplastics professionals’ perceptions on the implementation of lean-manufacturing in the Thermoplastics-manufacturing industry through Qualtrics, which is a survey website. From the professionals’ perceptions, the current study infers the current status of lean-manufacturing implementation in the thermoplastic-manufacturing industry and identifies the best lean theories and tools for the industry. However, the results of the current study are not generalizable to the entire thermoplastic-manufacturing industry.
The current study reviews thermoplastic-manufacturing processes from the house of lean’s perspective. The foundations of the house are stability and standardization, the pillars are Just-In-Time (JIT) and Jidoka, the roof is customer focus, and the heart is employee involvement. Thermoplastic-manufacturing processes include extrusion, fiber spinning, film casting, film blowing, and injection molding.
The questionnaire of this survey includes six rating-scale, two multiple-choice (multiple-answer), and three closed-ended questions. The questionnaire was distributed to the respondents through email, LinkedIn, and Society of Plastic Engineers (SPE). The expected responses’ quantity was 35. Since some of the respondents did not complete the whole survey, the actual responses’ quantity for each question was between 39 and 45.
Based on the respondents’ perceptions, the implementation of lean manufacturing in the thermoplastic-manufacturing industry is incomplete. The industry professionals should put more attention and effort on the implementation of JIT and Jidoka. To fully implement JIT and Jidoka, thermoplastic-manufacturing companies should use lean tools that are related to JIT and Jidoka, such as kanban, takt time, heijunka, Value Stream Mapping (VSM), and poka-yoke, more often. Additionally, the thermoplasticmanufacturing industry practitioners perceived that the best lean theories for the industry were standardization, involvement, and stability, and the best lean tools were 5S, Total Production Maintenance (TPM), and poka-yoke
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PETERSON, ERIC JOHN. "Additive Manufacturing for Nautical Design An Automated Approach to Marine Manufacturing." Doctoral thesis, Università degli studi di Genova, 2022. https://hdl.handle.net/11567/1101013.
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How can additive manufacturing (AM) technology be applied to automate the production of small marine vessels? For the past 50 years small (below 40 meters) marine vessel manufacturing has been dominated by moulded fiber-reinforced plastics (FRP). There are several shortcomings to this manufacturing method that affect both the formal outcome and the manufacturing process of boats built in FRP: 1) manufacturing requires the use of expensive moulds, 2) formal geometric freedom is limited by moulds which reduce the potential for customization, and 3) special assemblies and structural reinforcements must be moulded separately and joined using a time-consuming hand lay-up process. The use of AM may reduce cost of production by eliminating need for moulds, allow greater ease of customization, and improve worker safety by limiting exposure to harmful materials and chemicals.
The purpose of this research project is to evaluate existing AM technology and assess its potential for application to small marine vessel manufacturing. The project aims to investigate new methods for generating novel AM tool paths and demonstrate through proof of concept that it may be possible to produce the complex topological surfaces and assemblies that are common in marine vessels using multi-bias additive manufacturing (MBAM). However, AM is a broad term that describes a variety of different ways to manufacture objects. As such, AM can be applied to marine manufacturing in a variety of different ways, in different phases of the manufacturing process, and to different extents. At the same time, building boats is a complex process that presents specific problems that must be addressed in any automation solution. Several marine vessel construction projects have already been completed using AM which can serve as case studies for understanding the opportunities and challenges for applying AM to the marine sector. A review of the current state of the technology and qualitative analysis (QA) of case studies provides a set of guidelines for designing a manufacturing method that may prove effective for producing small marine vessels using AM.
The project relied on design-based research (DBR) to develop a series of experimental extruder prototypes for novel toolpath testing on excerpts from a small reference vessel. The combination of QA and DBR experimentation point to a manufacturing solution using articulated robotic manipulators and a continuous fiber thermoset plastic extruder using a modified version of the fused filament fabrication process. This kinematic solution can be extended with external linear or rotational axes and/or by mounting robotic manipulators within a large gantry. This will allow the extruder to approach the work using a wide range of orientations that will be optimal for both the geometry of marine vessels and the requirements of MBAM extrusion. Meanwhile, toolpath generation using the software Grasshopper with KukaPRC plugin demonstrated a proof of concept for creating MBAM toolpaths optimized for small marine vessels. While the method proved feasible for smaller excerpts there remain significant challenges to successful deployment of this manufacturing method that can only be addressed with additional research.
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Nguyen, Minh Dang, and Soemon Takakuwa. "EMERGENCE OF SIMULATIONS FOR MANUFACTURING LINE DESIGNS IN JAPANESE AUTOMOBILE MANUFACTURING PLANTS." IEEE, 2008. http://hdl.handle.net/2237/12111.
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Efstathiades, Andreas. "Modeling the implementation of advanced manufacturing technologies in the Cypriot manufacturing industry." Thesis, Brunel University, 1997. http://bura.brunel.ac.uk/handle/2438/5791.
Full textAbstract:
For the Cyprus Manufacturing Industry, previously committed to the production of medium quality standard products, the increased and changing nature of competitive pressures represents a fundamental challenge. The major problems the Cyprus manufacturing industry is facing appear to be labour shortages, together with low product competitiveness and poor production organization. It is widely believed that the introduction of Advanced Manufacturing technologies (AMTs) offers a means of resolving the above problems but their implementation is a risky venture. The main objective of the study was to examine the implementation of AMTs in the Cyprus Manufacturing Industry, identify the factors leading to successful application of these technologies and based on these factors develop an integrated process plan to facilitate their successful implementation. A survey was conducted on a sample of 40 companies using personal interviews based on a purpose designed comprehensive questionnaire. The questionnaire encompassed the international trends in the management and implementation of AMT. Successes and failures have been considered in terms of the Technical, Manufacturing and the Business aspects and influences of each technology. It has been found that the most important factors contributing to the successful implementation of AMT were the level of long term planning, the fitness level of AMT in the existing processes and the attention given to infrastructure preparation and human resource development. Based on the success factors identified an integrated planning model has been developed. The model incorporates all the planning procedures and implementation parameters to be followed in order to ensure successful AMT adoption and implementation. The model addresses the three main stages of AMT adoption and implementation: (a) the planning phase, (b) the selection, transfer and pre-implementation phase and (c) the post implementation phase. For each phase the steps to be followed are fully explored and analysed. Finally the usefulness of the model in facilitating the successful application of AMT is illustrated through two case studies.