Dissertations / Theses: 'Computer integrated manufacturing systems'

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Smith, Barry S. "Integrated inspection system in manufacturing : vision systems /." Master's thesis, This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-04272010-020147/.

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Nair, Girish. "Communications within a computer integrated manufacturing environment." Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-01262010-020049/.

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Kumile, CM, and G. Bright. "Sensor fusion control system for computer integrated manufacturing." South African Journal of Industrial Engineering, 2008. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000669.

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Manufacturing companies of today face unpredictable, high frequency market changes driven by global competition. To stay competitive, these companies must have the characteristics of cost-effective rapid response to the market needs. As an engineering discipline, mechatronics strives to integrate mechanical, electronic, and computer systems optimally in order to create high precision products and manufacturing processes. This paper presents a methodology of increasing flexibility and reusability of a generic computer integrated manufacturing (CIM) cell-control system using simulation and modelling of mechatronic sensory system (MSS) concepts. The utilisation of sensors within the CIM cell is highlighted specifically for data acquisition, analysis, and multi-sensor data fusion. Thus the designed reference architecture provides comprehensive insight for the functions and methodologies of a generic shop-floor control system (SFCS), which consequently enables the rapid deployment of a flexible system.

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Azar, Iyad Bahgat. "A vision architecture for integrated manufacturing systems." Thesis, Loughborough University, 1989. https://dspace.lboro.ac.uk/2134/27051.

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This thesis introduces a conceptual multi-layered reference model to deal with representing information in a visual scene and to relate this data to similar data structures used within manufacturing processes. In this model, information is processed by a set of algorithms organised within layers of hierarchy. The bottom layer deals directly with data collected by the sensors and the top-most layer offers an interface to the different related manufacturing processes. The building elements of the model and the functionality of each layer are examined with respect to different potential implementation. Through a study of typical vision problems, the thesis shows how conventional image processing solution can be re-implemented in a compatible way with the reference model with the advantage of making use of standard algorithms and development tools. The thesis also examines the impact of using machine vision, based on layered model with other manufacturing entities, and the resulting consequences on computer-integrated manufacturing strategy.

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Wang, Yizhong. "Merging data from multiple manufacturing software systems." Ohio : Ohio University, 1999. http://www.ohiolink.edu/etd/view.cgi?ohiou1175277910.

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Austin, Andrew. "Process Capability in a Computer Integrated Manufacturing Cell." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1322.

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With the rise of automation in traditional manufacturing processes, more companies are beginning to integrate computer integrated manufacturing (CIM) cells on their production floors. Through CIM cell integration, companies have the ability to reduce process time and increase production. One of the problems created with CIM cell automation is caused by the dependency the sequential steps have on one another. Dependency created by the previous step increases the probability that a process error could occur due to previous variation. One way to eliminate this dependency is through the use of an in-process measuring device such as a Renishaw spindle probe used in conjunction with a computer numerical control (CNC) milling machine. Western Kentucky University (WKU) utilizes a CIM cell in the Senator Mitch McConnell Advanced Manufacturing and Robotics laboratory. The laboratory is located in the Architectural and Manufacturing Sciences department and gives students the opportunity to learn how automated systems can be integrated. The CIM cell consists of three Mitsubishi six-axis robots, a Haas Mini-mill, a Haas GT-10 lathe, an AXYZ, Inc. CNC router table, 120 watt laser engraver, an Automated Storage and Retrieval System (ASRS), material handling conveyor, and vision station. The CIM cell functions throughout the curriculum as a means for applied learning and research. The researcher used this CIM cell in order to determine if an in-process measuring device, such as the Renishaw spindle probe, had the ability to affect process capability. The researcher conducted the study to see if an in-process measuring device can be integrated into the CIM cell located in the Senator Mitch McConnell Advanced Manufacturing and Robotics laboratory to eliminate compounding variation. The researcher discovered that through the use of a Renishaw 40-2 spindle probe used in conjunction with a CNC Haas Mini Mill, process capability has the potential to be improved in a CIM cell by accounting for compounding variation present in the process.

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Yang, Yihong. "Integrated quality control planning in computer-aided manufacturing planning." Worcester, Mass. : Worcester Polytechnic Institute, 2007. http://www.wpi.edu/Pubs/ETD/Available/etd-041607-164054/.

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Thesis (Ph. D.)--Worcester Polytechnic Institute.
Keywords: In-process inspection; tolerance assignment; tolerance stack-up analysis; quality control planning. Includes bibliographical references (leaves 136-148).

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Dreer, Pascal. "Development of an integrated information model for computer integrated manufacturing." Ohio : Ohio University, 1995. http://www.ohiolink.edu/etd/view.cgi?ohiou1179512522.

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Chan, Man-hing. "An holistic approach to selecting advanced manufacturing technologies /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21841500.

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Thompson, David. "A holistic approach to computer integrated manufacturing architecture and systems design." Thesis, University of Plymouth, 1995. http://hdl.handle.net/10026.1/2310.

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This work addresses the problem of finding an improved solution to Computer Integrated Manufacturing (ClM) Architecture and Systems Design. The current approaches are shown to be difficult to understand and use, over complex. In spite of their complexity of approach they lack comprehensiveness and omit many factors and dimensions considered essential for success in today's competitive and often global market place. A new approach to ClM Architecture and Systems Design is presented which offers a simpler, more flexible and more robust format for defining a particular ClM System within a general architectural framework. At the same time this new approach is designed to offer a comprehensive and holistic solution. The research work involved the investigation of current approaches and research and development initiatives focusing particularly on the CIM-OSA and GRAI Integrated methodologies in the field of ClM Architecture. The strengths and weaknesses of the various approaches are examined. Developments in other related fields including manufacturing systems, manufacturing management, information technology and systems generally have been investigated regarding their relevance and possible contribution to an improved solution. The author has built on his practical experience in creating, designing and managing the implementation of a global CIM system. The authors work on several publicly funded collaborative research and development projects relevant to the problem area is described. These include CIM-OSA, IMOCIM and TIQS projects. In the latter two projects the author was instrumental in developing the methodological approach based on a systems approach to business processes in connection with the design of quality and manufacturing systems. Both of these projects have contributed to this work. The author has also participated in the global IMS programme as a rapporteur for the European Commission and this helped to provide a global perspective on the problems of manufacturing companies as they attempt to compete in a world wide market place. The results of this work provide the basis for a radically improved approach to ClM Architecture and Systems Design based on the holistic view of an enterprise. The approach developed supports the business process view of an enterprise; addresses the people and organisational aspects; leads to ClM solutions focused on meeting enterprise goals; and is able to deal with a significantly increased scope and complexity compared with existing methods yet is easily understood and more simple to simple to apply than current approaches.

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Crandall, William W. "Metrics for measuring the value of computer integrated manufacturing (CIM) systems." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/12062.

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Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1994
Includes bibliographical references (leaves 129-136).
by William Wofford Crandall, Jr.
M.S.

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Lin, Yi-Tzer. "Modeling and analysis for message reachability in distributed manufacturing systems." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/24292.

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Sreekanth, Uday. "POEMS - a process and object environment for manufacturing simulation." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/24945.

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Stroble, Jacquelyn Kay. "Towards a methodology for integrated freeform manufacturing systems development with a control systems emphasis." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/Stroble_thesis_09007dcc8032a78b.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 4, 2007) Includes bibliographical references.

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Tannock, James T. D. "The design and implementation of integrated quality systems in manufacturing." Thesis, University of the West of England, Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480604.

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Saberi, Iftekhar Ali. "Merge as it relates to computer integrated manufacturing environment." Ohio : Ohio University, 2001. http://www.ohiolink.edu/etd/view.cgi?ohiou1174322707.

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Berg, Paula M. "Intergrating vision into a computer integrated manufacturing system." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/43754.

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An industrial vision system is a useful and often integral part of a computer integrated manufacturing system. Successful integration of vision capabilities into a manufacturing system involves extracting from image data the information which has meaning to the task at hand, and communicating that information to the larger system. The goal of this research was to integrate the activities of a stand-alone vision system into the operation of a manufacturing system; more specifically, the host controller and vision system were expected to work together to determine the status of pallets moving through the system. Pallet status was based on whether the objects on the pallet were correct in shape, location, and orientation, as compared to a pallet model generated using the microcomputer-based CADKEY CAD program. Cadd.c, a C language program developed for this research, extracts object area, perimeter, centroid, and principal angle from the CAD KE Y model for comparison to counterparts generated by the vision system. This off-line approach to supplying known parameters to the vision system was chosen over the traditional "teach by showing" method to take advantage of existing CAD data and to avoid disruption of the production system. The actual comparison of model and image data was performed by a program written in VPL, the resident language of the GE Optomation II Vision System. The comparison program relies on another short VPL program to obtain a pixel/inch ratio which equates the disparate units of the two systems. Model parameters are passed to the vision system via hardware and software links developed as part of this research. Three C language programs enable the host computer to communicate commands and parameters, and receive program results from the vision system. Preliminary testing of the system revealed that the object location and surface texture, lighting conditions, and pallet background all affected the image parameter calculations and hence the comparison process.
Master of Science

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陳文興 and Man-hing Chan. "An holistic approach to selecting advanced manufacturing technologies." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1999. http://hub.hku.hk/bib/B31222262.

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Wu, Xianghua. "On computer integrated process planning and job shop scheduling." Thesis, The University of Sydney, 1998. https://hdl.handle.net/2123/27638.

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Integrated process planning and job shop scheduling is an essential part of computer integrated manufacturing (CIM). The research reported in this thesis involves the use of emerging technologies to investigate the methodologies of integrated process planning and scheduling at an advanced level. The major remaining challenges in the area of integrated process planning and scheduling are addressed and highlighted in this thesis, including component representation, component recognition, modeling of manufacturing processes, generation of multiple process plans, generation of job shop scheduling, optimisation of job shop schedules and process plans. Particular issues related to the proposed integration, such as component coding techniques, semi-generative computer aided process planning (CAPP), supervised job shop scheduling, and an evolutionary approach to integrated process planning and job shop scheduling, are examined in detail.

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Tang, Hon-ping. "A hybrid multi-agent system architecture for manufacturing cell control." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/HKUTO/record/B38628727.

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Tang, Hon-ping, and 鄧漢平. "A hybrid multi-agent system architecture for manufacturing cell control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B38628727.

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Oraifige, Ilias. "Simulation and co-ordination of hierarchical structures in integrated manufacturing systems." Thesis, University of Wolverhampton, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264372.

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Gibson, Ian. "Applications for robotics in the shoe manufacturing industry." Thesis, University of Hull, 1988. http://hydra.hull.ac.uk/resources/hull:3106.

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Hamilton, George Lane Jr. "Design and development of a carpet manufacturing architecture : the function model." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/8535.

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Wong, Tak-wah. "Object-oriented methods for the design of automated manufacturing systems." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19471208.

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Ghatpande, Puja Sudhakar. "Study of fixturing accessibilities in computer-aided fixture design." Worcester, Mass. : Worcester Polytechnic Institute, 2008. http://www.wpi.edu/Pubs/ETD/Available/etd-080808-195905/.

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27

Vasiliou, Vasos C. "Computer integrated system for form-roll manufacture." Thesis, Aston University, 1985. http://publications.aston.ac.uk/11856/.

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Computer integrated manufacture has brought about great advances in manufacturing technology and its recognition is world wide. Cold roll forming of thin-walled sections, and in particular the design and manufacture of form-rolls, the special tooling used in the cold roll forming process, is but one such area where computer integrated manufacture can make a positive contribution. The work reported in this thesis, concerned with the development of an integrated manufacturing system for assisting the design and manufacture of form-rolls, was undertaken in collaboration with a leading manufacturer of thin-walled sections. A suit of computer programs, written in FORTRAN 77, have been developed to provide computer aids for every aspect of work in form-roll design and manufacture including cost estimation and stock control aids. The first phase of the development programme dealt with the establishment of CAD facilities for form-roll design, comprising the design of the finished section, the flower pattern, the roll design and the interactive roll editor program. Concerning the CAM facilities, dealt with in the second phase, an expert system roll machining processor and a general post-processor have been developed for considering the roll geometry and automatically generating NC tape programs for any required CNC lathe system. These programs have been successfully implemented, as an integrated manufacturing software system, on the VAX 11/750 super-minicomputer with graphics facilities for displaying drawings interactively on the terminal screen. The development of the integrated system has been found beneficial in all aspects of form-roll design and manufacture. Design and manufacturing lead times have been reduced by several weeks, quality has improved considerably and productivity has increased. The work has also demonstrated the promising nature of the expert systems approach to computer integrated manufacture.

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Das, Sanchoy K. "A structured approach to production control in integrated manufacturing systems." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54345.

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The planning and control of manufacturing systems is a complex activity involving a myriad of decisions and optimization algorithms. ln a Computer Integrated Manufacturing System (CIMS) these decisions and algorithms span several functions, require information from several sources, and have consequences in several sectors of the manufacturing system. This dissertation is concerned with the development of a structured methodology for executing this activity. Therefore, the primary activities are first, to develop the framework for a Computer Integrated Production Planning and Control (ClPP&C) system, and second, to formulate and solve specific mathematical models which are nested in the developed framework. The framework functions as a "city plan" for the production control activity in a CIMS environment, while the mathematical methodologies are pieces of the decision architecture. Achieving a CIMS implies achieving an integrated manufacturing system. Implying the production control system needs to be designed with specific consideration of the concepts, issues, and principles of integrated manufacturing. As such, these concepts, issues and principles are identified and developed in this research. A model of CIMS is developed and the role of ClPP&C is analyzed. A framework for integration in manufacturing is developed and used to guide the modeling efforts. . The ClPP&C "city plan" is developed using an adaptation of the IDEF methodology. The objective of the plan is to define the separate problems which are to be solved in production control, the interrelationships between these problems, and the synergy which causes them to behave as a single system. This research specifically addresses the master aggregate scheduling (MA-Schedule) and the coordinating production scheduling (CP-Schedule) problems within the CIPP&C plan. The MA-Scheduling problem prescribes how much of a family is to be produced in a time period, and is formulated in detail as a non-linear 0-1 mixed integer program. The formulation aggregates capacity, time, and products; models routing and capacity flexibility; and considers the availability of material transporters. The solution procedure incorporates linearization methods, preprocessing algorithms, and large-scale MIP solvers. The CP-Schedule is formulated as two separate problems. The first disaggregates time and product and is to be solved as a MIP. The second problem determines the start time of each product batch at a cell. lt is equivalent to the minimum makespan problem and solution approaches are discussed. A network of programs was designed to execute the scheduling methodology. Experimental results with the methodology are reported. These results provide insights into system performance in various conditions. Specifically, the impact of flexibility, loading, transporter availability, and cost dimensions are analyzed.
Ph. D.

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樊智傑 and Chi-kit Fan. "An agent based infrastructure for manufacturing cell control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31225950.

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Fan, Chi-kit. "An agent based infrastructure for manufacturing cell control /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?B2359603x.

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Yu, Bing. "Hybrid modelling methodology for system design." Thesis, Loughborough University, 1995. https://dspace.lboro.ac.uk/2134/6999.

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In the face of rapid development in information technology coupled with a growing dynamism in global markets, manufacturing systems have to be re-constructed for short term or long term goal. Such innovations promise to lead to a new competitive stage, which typically involve design of function, information and behaviour of systems. In order to design the system, simulation has often been chosen. However, simulation has proved limited and fails to aid design of such a complex systems because of consuming much computing time and cost, especially when modelling larger systems. Thus, there is a need to seek a new approach, in a way that results in simulating such a large manufacturing system with less demand on computing time and cost. This study researches into a hybrid modelling approach to minimise these limitations. It includes proposing a hybrid modelling methodology and developing a hybrid modelling tool. The methodology integrates simulation and metamodelling techniques. The metamodel employed in the study possesses, not only characteristics of conventional metamodels in terms of representing relationships in quantity, but also in time lapse. This is the originality of the study and the significant distinction between this research and application of metamodelling in conventional ways. The hybrid modelling tool is developed to support and demonstrate the identified hybrid methodology. LISP has been used as the software language for the hybrid modelling tool. The result of this work concludes that the hybrid modelling approach is capable of simulating a complex manufacturing system with less demands on the computer. The work reported in this thesis has been carried out in conjunction with the EPSRC research project, Hierarchical Manufacturing System Modelling (HMSM) (GR/F96549), to produce an Integrated Design and Modelling Methodology (IDEM). The project was initially a collaborative research program including Loughborough University of Technology (LUT), Morris Crane Ltd., of Loughborough and GEC Large Machine, of Rugby. The experience of these collaborators has proved most valuable in supporting the research, and have provided a cross section of views and comments. The research reported in this thesis is set in the context of the HMSM Research group at Loughborough.

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Hudman, Frederick Mark. "Aspects of automation in the shoe industry." Thesis, University of Hull, 1997. http://hydra.hull.ac.uk/resources/hull:4991.

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The shoe manufacturing industry has undergone a revolution during the last 50 years, due to the introduction of task specific machinery. Great technological strides have been made in the areas of shoe manufacture prior to actual component assembly. Computer systems are now becoming the norm for the design of shoes for today's market place. Technological innovations have also started to be applied in the assembly and construction processes of modern shoes. Computer controlled cutting machines calculate the optimum usage of leather from any given hide, new machines allow decorative stitch patterns to be associated with a given shape and size of component and automatically stitched on to the presented workpiece. However the majority of assembly operations have remained predominantly manual with technology playing a secondary role to the human operator due to complexities either in manipulation, control or sensing. In these machines electronic and mechanical innovations have been used to add new features to often simple machines and in some cases to simplify some of the more complex operations, thus increasing productivity but reducing the required dexterity and knowledge of an operator. Modern preferences in industry are to utilise fully automated machines, that are as operator independent as possible, thus improving quality, consistency and production speed whilst at the same time reducing production costs.Due to the nature of the shoe manufacturing industry and the complex operations that have to be performed in order to construct a shoe, machinery manufacturers who have ventured into this field of automation have generally struggled to gain acceptance from the shoe makers as the machinery is generally complex and slow in operation. This together with the fact that a large proportion of the world's main footwear production is centred in the far east, with their correspondingly low labour costs, has held back the automation of the shoe manufacturing industry.This thesis examines a selection of operations encountered in the construction of a typical shoe. These include operations for processing single flat component parts as well as more complex three-dimensional operations encountered when lasting and soling a shoe. The aim of the research was to develop an understanding of processes encountered in specific areas within the shoe manufacturing industry in order to identify areas where further advances in automation could be achieved. This understanding has been applied to produce proposals and in some cases hardware, to allow for the development of working systems.

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Chiu, Kuohung Simon 1959. "A COST BASED GROUPING HEURISTIC IN GROUP TECHNOLOGY." Thesis, The University of Arizona, 1987. http://hdl.handle.net/10150/276491.

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This thesis proposes a cost based grouping procedure for Group Technology. The procedure is a two-stage graph partitioning approach to determine machine cells. Costs of work-in-process inventory, machine depreciation, machine setup and material handling are used as a basis for grouping. The procedure begins by selecting economic lot sizes for each part type and converting these values to machine requirements. The first stage assigns parts to machines of a common type. The second stage groups individual machines to cells, with each machine cell having a number of machines between chosen lower and upper limits. An additional check is given to the final groupings to see if adding a machine of any type can result in savings on the intergroup material handling cost. The process may iterate by next obtaining updated setup times and restarting.

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Jung, Ching-Chuan. "Development of scheduling control system for a flexible manufacturing cell." Thesis, Queensland University of Technology, 1992. https://eprints.qut.edu.au/36109/1/36109_Jung_1992.pdf.

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The dissertation describes the development of the scheduling control system for a flexible manufacturing cell (FMC) established at the School of Mechanical and Manufacturing Engineering, Technology (QUT). The QUT Queensland University of FMC is a two-machine type manufacturing system which consists of a Computer Numerical Controlled (CNC) lathe, a CNC milling machine and an industrial robot which serves both the CNC lathe and the CNC milling machine. To control the constituents of the FMC at a personal computer, a modular tree-type control structure was applied to the scheduling control system. The computer software was written for the scheduling, tool information and job specification aspects of the scheduling control system in "C" language. Two user programs, "CTOOL" and "Crosstalk", were used to control the Robot and the CNC Machine respectively. The system described in this project has the following features: 1 management of job data. 2 execution of the user program which was written in other software language. 3 production of an efficient job schedule and the modification of the schedule. The experimental result indicated that use of scheduling control system with the heuristic algorithm could yielded a reduction in processing time of between 6% and 10% in comparison with a system designed according to the single dispatching rule.

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Van, Rooyen Ivän Jan-Richard. "Intelligence based error detection and classification for 3D measurement systems." Thesis, Nelson Mandela Metropolitan University, 2017. http://hdl.handle.net/10948/21241.

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For many years 2D machine vision has been used to perform automated inspection and measuring in the manufacturing environment. A strong drive to automate manufacturing has meant improvements in robotics and sensor technologies. So has machine vision seen a steady movement away from 2D and towards 3D. It is necessary to research and develop software that can use these new 3D sensing equipment in novel and useful ways. One task that is particularly useful, for a variety of situations is object recognition. It was hypothesised that it should be possible to train artificial neural networks to recognise 3D objects. For this purpose a 3D laser scanner was developed. This scanner and its software was developed and tested first in a virtual environment and what was learned there was then used to implemented an actual scanner. This scanner served the purpose of verifying what was done in the virtual environment. Neural networks of different sized were trained to establish whether they are a feasible classifier for the task of object recognition. Testing showed that, with the correct preprocessing, it is possible to perform 3D object recognition on simple geometric shapes by means of artificial neural networks.

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Sturnick, Gerald R. "Integration of computer-aided design techniques into the mechanical product development process /." Online version of thesis, 1989. http://hdl.handle.net/1850/10477.

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Jiménez, Hernández Angel Mário. "Design for manufacturing systems from automotive industry perspective." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2007. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Zhu, Wenkai, and 朱文凱. "Concurrent toolpath planning for multi-material layered manufacturing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B42841446.

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Zhu, Wenkai. "Concurrent toolpath planning for multi-material layered manufacturing." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B42841446.

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Weston, Neil. "Development of a computing and information systems infrastructure for CAPM in a computer integrated manufacturing environment." Thesis, University of Plymouth, 1991. http://hdl.handle.net/10026.1/2597.

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The continuing failure of many CAPM implementations in the UK, despite the availability of a large and growing supply of software, gave rise to concern within the academic and user community and highlighted a need for a concerted research effort into the causes of failure. The Science and Engineering Research Council responded to this need by sponsoring a major research initiative into CAPM through its ACME (Application of Computers to Manufacturing Engineering) Directorate. The findings reported in this thesis result from the work carried out for ACME by the author as part of the joint Polytechnic South West/Sheffield Business School research programme under the direction of professors D R Hughes, I S Smith and D R Tranfield. The extent of the work included surveying a large number of manufacturing firms, interviewing suppliers of CAPM systems and services and analysing the data collected from these activities. This resulted in the identification of a number of causes of CAPM failure. A major component of the work then concerned developing an appropriate CAPM design and implementation methodology to address the issues and concerns identified as significant. A clear distinction is made in the thesis between the work carried out by the author as part of the ACME team and the author's own work. The results from the joint effort of the research team are explained together with the author's unique contribution. The concepts of operational performance envelopes and contextually bound computing and information systems infrastructures provide the theoretical foundation to the author's approach. These concepts are utilised within an approach developed by the author which offers a wider ranging approach than is currently available. Existing approaches focus on the development of single point solutions and aim to address particular and current problems only. Such solutions are inappropriate where requirements are subject to rapid and frequent change, as in the manufacturing sector. In contrast the author's approach focuses on the development of a computing and information systems capability with the necessary flexibility to accommodate changing requirements and priorities. In this way a more resilient solution is obtainable.

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Lucas-Smith, Anthony John Henry. "Investigation of the criteria and techniques for the distribution of intelligence in computer integrated manufacturing systems." Thesis, Kingston University, 1990. http://eprints.kingston.ac.uk/20539/.

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In an environment of world competition in manufacturing, the application of information technology (IT) is seen an important component in the achievement of performance improvement. Computer Integrated Manufacturing (CIM) is interpreted as the realisation of an IT strategy for manufacturing to achieve competitive advantage. The thesis identifies the growing problems of change and uncertainty in manufacturing which make effective, centralised, monolithic control ever more difficult to achieve by automation. An alternative, more manageable approach is deonstrated in which artificial intelligence (AI) is distributed across an enterprise in order to carry out decision making at the locations where it would naturally take place. The concept of an intelligent nodal architecture has been defined, differentiating between the functions of decision making, recording business transactions and enabling communication. A detailed case study was undertaken of a manufacturer of printed circuit boards to investigate the criteria for effective application of the intelligent architecture to decision making procedures. In the process, the IDEF-O analytical methodology was critically appraised, and the conclusion reached that design based on top-down analysis is inferior to evolutionary design of manufacturing systems. A simulator to support the proposed intelligent architecture was developed using object-oriented, hypermedia software, and tested with a small scale factory model. The simulator, then applied to the case study, demonstrated the potential for improving performance using Kanban techniques implemented by means of distributed intelligent nodes. It was also observed that AI based simulation could provide better planning tools than centralised systems such as MRP (Manufacturing Resource Planning). In conclusion, evidence was provided to support the use of distributed intelligence in manufacturing automation and an intelligent architecture proposed and tested using simulation. The research shows potential for commercial development.

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42

Fan, Chi-kit. "Design and analysis of agent-based FMS control systems." Click to view the E-thesis via HKUTO, 2005. http://sunzi.lib.hku.hk/hkuto/record/B31580324.

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Narayanan, Sundaram. "Design and development of an object-oriented architecture for modeling and simulation of discrete-part manufacturing systems." Diss., Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/24374.

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Wort, Ralph George. "Integrated information system for quality control." Thesis, University of the West of England, Bristol, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.283909.

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45

王得華 and Tak-wah Wong. "Object-oriented methods for the design of automated manufacturing systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B29900025.

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46

Mumpower, Gregory D. "Improving product and process design integration through representation and simulation of manufacturing processes." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17039.

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47

Jain, Vikesh. "A platform independent process data exchange mechanism between Java applications and computer aided manufacturing systems." Ohio : Ohio University, 2003. http://www.ohiolink.edu/etd/view.cgi?ohiou1081784819.

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48

Martin, Timothy Patrick. "Flexible manufacturing system software development using simulation." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/101236.

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This paper presents a hierarchical modeling method that can be used to simulate a Flexible Manufacturing System (FMS) at all levels of detail. The method was developed specifically to aid the software development needed for the hierarchy of computers that are present in an FMS. The method was developed by modeling an existing FMS. The models developed of the existing FMS are described in detail to provide an example of how to model other FMSs. The basic building blocks needed for designing other FMSs with this modeling method are provided. The models were written in the SIMAN simulation language. SIMAN was found to be an easy language to use for the hierarchical modeling of FMSs.
M.S.

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49

Fourie, Cornelius J. (Cornelius Jacobus). "On monitoring and intelligence in an integrated manufacturing system." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53540.

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Thesis (PhD)--University of Stellenbosch, 2003.
ENGLISH ABSTRACT: Some concepts of manufacturing on their own playa decisive role in manufacturing like Integration, Intelligence and Remote Monitoring. They have been tried and tested with great success in various applications in manufacturing. However, very little has been written on the synergy that is created when all three is deployed in one system. It is the aim of this work to survey the attributes of each of these key concepts, to compare them on the grounds of applicability and to study the effects when combined into one system. Final conclusions are made after the hypotheses have been validated with the aid of an experimental model. The first objective of this work is to show how many techniques such as expert systems, fuzzy logic, neural networks and genetic algorithms are used to enable systems to perform intelligently. It is accepted that the competitiveness, growth and profitability of a company in future may depend on the level of its system intelligence. This is so because an intelligent system is able to act appropriately under rapidly changing conditions of customer customisation and demands on quicker throughputs. A further objective of this work is to show how integration adds the element of synergy to a system. This is done by showing several ways of achieving integration by non-technological means like departmental consolidation, plant consolidation, product rationalisation, more flexible working practices, etc. There are as many options for integration by technical means as well, ranging from group technology to process or transfer lines, and from flexible automation such as robots through to hard automation using special-purpose machinery and transfer lines. The third objective is to show how remote monitoring enhances the capabilities of manufacturing systems by synergising with the other two key concepts. With the technology of intelligent manufacturing and integration, larger and more complex manufacturing systems are becoming a reality. However, the danger exists that the shop floor machine tools remain isolated islands of automation. Plant machinery needs to be networked into the enterprise-wide information system. The ability to monitor a variety of process parameters and alert plant staff to changing conditions can greatly reduce downtime. This lack of connectivity therefore represents a huge constraint as far as productivity is concerned. For this reason, there is a great interest to study remote monitoring, analysis and diagnostic systems for application in modem manufacturing. The major contribution of this work is to study the synergy that is created by combining the three key concepts into one system and to validate the findings with the aid of the experimental model. The meaning of validation is to make legally valid; to grant official sanction to; to confirm the validity of something or to declare something as true. To validate is to support or corroborate a theory on a sound or authoritative basis by experiments designed to show a hypothesis as being true. The components of the validation model are a neural network, a simulator, a decision evaluator or critic, and a teacher. The neural network is used to make the decisions. Its inputs are the system parameters and its outputs are a vector of values between 0 and 1, the highest value indicates the decision being made (winner takes all). The simulator executes the decision it obtains from the network and thus changes the state of the system. The evaluator looks at how the system changed due to the decision made by the network and decides whether it was a good or a bad decision. The teacher then adjusts the output of the network accordingly and trains the network with the adjusted outputs. The results of the validation experiments show that intelligence is used to train the model, integration is achieved by combining the elements of the model with the mobile robot and remote monitoring is done by the model to analyse the condition of the system and to react accordingly. The main objective of this work is clearly met in that synergy was shown to be created by the three key concepts.
AFRIKAANSE OPSOMMING: Aspekte soos Integrasie, Intelligensie en Afstandsmonitering speel 'n deurslaggewende rol in vervaardiging en is al op hulle eie met groot sukses in vele toepassings gebruik. Daar is egter nog nie veel aangeteken oor die sinergie wat ontstaan wanneer hulle tesame in een stelsel gebruik word nie. Dit is die doel van hierdie werk om die kenmerke van elk van hierdie sleutel aspekte na te vors, dit op grond van toepaslikheid met mekaar te vergelyk en die uitwerking te bestudeer wanneer hulle in een stelsel saamgevoeg word. Nadat die hipoteses met behulp van 'n eksperimentele model gevalideer is, word finale gevolgtrekkings gemaak. Die eerste doelwit van hierdie werk is om aan te toon dat verskeie tegnieke soos genetiese algoritmes en neurale netwerke gebruik word om stelsels meer kundig te laat optree. Dit word aanvaar dat die toekomstige mededingendheid en groei van ondernemings mag afhang van die stelsel intelligentheidsvlak. Dit is omdat intelligente stelsels gepas kan optree onder snel-veranderende omstandighede. 'n Verdere doelwit is om aan te toon hoe integrasie sinergie kan toevoeg tot 'n stelsel. Dit word gedoen deur verskeie metodes te bespreek van hoe om integrasie op 'n nie-tegniese vlak te bewerkstellig. Die tegniese metodes van integrasie word ook bespreek en sluit tegnieke soos groeptegnologie, aanpasbare outomatisasie en robotika in. Die derde doelwit is om aan te toon hoe afstandsmonitering as sleutel aspek die ander twee sleutel aspekte kan versterk. Die tegnologië van intelligente vervaardiging en integrasie maak die skepping van groter en meer kompleks vervaardigingstelsels nou moontlik. Die gevaar bestaan egter dat hierdie masjiene slegs eilande van outomatisasie sal bly indien hulle nie met behulp van netwerke in die onderneming se inligtingstelselopgeneem word nie. Die vermoë om prosesveranderinge te monitor kan lei tot verminderde staantyd van masjiene en kan dus produktiwiteit verhoog. Om hierdie redes is die toepassing van afstandsmonitering en -diagnosering belangrik vir toepassing in vervaardiging. Die belangrikste bydrae van hierdie werk is die studie van die sinergie wat ontstaan wanneer die drie sleutel aspekte in een stelsel gekombineer word en om die bevindinge te valideer met behulp van 'n eksperimentele model. Om te valideer beteken om iets geldig te verklaar of om die geldigheid van iets te bevestig. Dit beteken verder om 'n teorie te ondersteun of te staaf op 'n grondige en deskundige basis met behulp van eksperimente. Die validasie model bestaan uit 'n neurale netwerk, 'n simulator, 'n besluitevalueerder of beoordelaar, en 'n onderwyser (terugvoerder). Die neurale netwerk neem die besluite met die stelselparameters as inset en die uitset 'n vektor met waardes tussen 0 en 1. Die simulator voer die besluit uit en verander so die toestand van die stelsel. Die evalueerder bepaal hoe die stelsel verander het as gevolg van die besluit en bepaalook of dit 'n goeie of slegte besluit was. Die onderwyser verstel dan die uitset van die netwerk dienooreenkomstig en lei die netwerk op met die verstelde uitsette. Die resultate van die validasie eksperiment toon aan dat intelligensie gebruik word om die modelop te lei, integrasie behaal word deur die elemente van die model te kombineer met die mobiele robot en afstandsmonitering toegepas word deur die toestand van die stelsel te monitor en te analiseer. Die hoofdoelwit van hierdie werk word dus duidelik behaal deur die beskrywing van die sinergie wat ontstaan deur die kombinasie van die drie sleutel aspekte.

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50

Abou, El-Nasr Mohamad. "Timing control of manufacturing systems an optimal control perspective." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/14847.

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Dissertations / Theses on the topic 'Computer integrated manufacturing systems'

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