Tesi sul tema "Integrated maintenance"
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Chen, Chun-Hung. "Integrated management of highway maintenance and traffic". College Park, Md. : University of Maryland, 2003. http://hdl.handle.net/1903/64.
Thesis research directed by: Civil Engineering. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Henry, Joel. "An integrated approach to software process assessment". Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-170922/.
Rosen, Charles Michael. "Demonstration : integrated diagnostics/prognostics for condition-based maintenance". Thesis, Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/18954.
Pringle, Abbie. "Eating disorders : A integrated approach to vulnerability and maintenance". Thesis, University of Oxford, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526517.
Barber, Darrin E. (Darrin Eugene). "Shipboard condition based maintenance and integrated power system initiatives". Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/68571.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 80-81).
With the U.S. Navy's continued focus on developing and implementing a robust integrated power system aboard future combatants, there has been an ever increasing effort to guarantee an electrical distribution system that maintains maximum capabilities in the event of a system fault. It is believed that the implementation of a device such as a non-intrusive load monitor (NILM) can greatly assist in the preemptive detection of such faults and failures. Ongoing NILM research conducted at Massachusetts Institute of Technology's Laboratory for Electromagnetic and Electronic Systems (LEES) is exploring the application of NILM technology in shipboard environments. The NILM's unique ability to the monitor the power usage profile of these systems can be used to immediately diagnose system casualties and unusual operation parameters. Additionally, research has shown that the NILM can be used effectively and reliably, to monitor equipment health, recognize and indicate abnormal operating conditions and casualties and provide invaluable information for training operators, diagnosing problems and troubleshooting. This thesis will discuss how this frequency content of the aggregate measurement can be used to assess the health of motors. Experiments were conducted in the confines of LESS in addition to aboard USCGC ESCANABA (WMEC-907), a 270-foot Coast Guard Cutter, in order to better understand the system dynamics in a real life environment. To further support the US Navy's integrated power system initiatives two hardware models of a shipboard electrical propulsion drive system were constructed, an MVDC propulsion simulation and a doubly-fed machine propulsion model. These simulations were built for the purpose of testing innovative integrated propulsion system theories, algorithms, configurations and new electric propulsion concepts.
by Darrin E. Barber.
S.M.
Nav.E.
Costello, Seosamh. "An integrated strategic planning tool for road maintenance funding". Thesis, University of Birmingham, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.633080.
Mohamed, Abdelhafiez M. A. "An integrated framework for maintenance optimisation with petroleum industry". Thesis, Sheffield Hallam University, 2016. http://shura.shu.ac.uk/20073/.
Hatcher, Charles S. "An analysis of depot level maintenance for the H-60 helicopter under an integrated maintenance concept". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA340983.
"September 1997." Thesis advisor(s): William Gates, John E. Mutty, Don R. Eaton. Includes bibliographical references (p. 109). Also available online.
Lopez, Alvarado Paula Andrea. "Integrated scheduling and information support system for transit maintenance departments". [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001151.
Coopoosamy, Kribban. "An integrated maintenance management system model for the pharmaceutical industry". Thesis, Nelson Mandela Metropolitan University, 2011. http://hdl.handle.net/10948/1583.
El-Haram, Mohamed Abdulla. "Integrated approach to condition-based reliability assessment and maintenance planning". Thesis, University of Exeter, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318185.
Bittlestone, David. "A documentation paradigm for an integrated software maintenance support environment". Thesis, Durham University, 1992. http://etheses.dur.ac.uk/6020/.
Melnychenko, Oleksandr, e Ruslan Kostyrko. "Integrated reporting - a tool for the companies’ responsible operation maintenance". Thesis, National Aviation University, 2021. https://er.nau.edu.ua/handle/NAU/54616.
It has been specified that changes in the corporate governance paradigm and the interests of stakeholders determine the transformation of corporate reporting. The roadmaps for solving the problem of integrated reporting generation and analysis for the purposes of different users’ information requests were offered.
Al-Arfaj, Khalid Abdulaziz. "Generator maintenance scheduling models in power systems : integrated cost models for generator maintenance strategy under market environment". Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4316.
Al-Arfaj, Khalid A. "Generator Maintenance Scheduling Models in Power Systems. Integrated Cost Models for Generator Maintenance Strategy under Market Environment". Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/4316.
Chan, Pui Shan. "Support for an integrated approach to program understanding : an application of software visualisation". Thesis, Durham University, 1998. http://etheses.dur.ac.uk/4666/.
Saxena, Abhinav. "Knowledge-Based Architecture for Integrated Condition Based Maintenance of Engineering Systems". Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16125.
Mattsson, Hans-Åke. "Integrated Bridge Maintenance : Evaluation of a pilot project and future perspectives". Doctoral thesis, KTH, Brobyggnad inkl stålbyggnad, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9572.
QC 20100826
DESAI, ANOOP. "AN INTEGRATED METHODOLOGY FOR ASSEMBLY, DISASSEMBLY AND MAINTENANCE FOR CONSUMER PRODUCTS". University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1154100938.
Mattsson, Hans-Åke. "Integrated bridge maintenance : evaluation of a pilot project and future perspectives /". Stockholm : Arkitektur och samhällsbyggnad, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9572.
Hu, Feng-Ming. "Integrated Apartment Management System". CSUSB ScholarWorks, 2006. https://scholarworks.lib.csusb.edu/etd-project/3004.
Li, Jin. "Simulation and Optimization of Integrated Maintenance Strategies for an Aircraft Assembly Process". Thesis, Cranfield University, 2013. http://dspace.lib.cranfield.ac.uk/handle/1826/8439.
Kramer, Anthony J. (Anthony Joseph). "An integrated approach to maintenance in a three-crew, two-shift environment". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/46080.
Includes bibliographical references (p. 77-78).
by Anthony J. Kramer.
M.S.
Matoss, Elnouri Ali. "Maintenance scheduling and inventory control policy in aviation industry : an integrated framework". Thesis, Sheffield Hallam University, 2010. http://shura.shu.ac.uk/20026/.
Sangregorio, Paolo. "Integrated methodologies of software development and remote maintenance for semi-automated machines". Doctoral thesis, Università degli studi di Bergamo, 2017. http://hdl.handle.net/10446/77299.
Ayandokun, O. K. "The incremental motion encoder : a sensor for the integrated condition monitoring of rotating machinery". Thesis, Nottingham Trent University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245075.
McCurry, Christopher Todd. "Managerial control of the Army's integrated sustainment maintenance system from a national perspective". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1995. http://handle.dtic.mil/100.2/ADA305795.
Thesis advisor(s): David F. Matthews, James E. Suchan. "December 1995." Includes bibliographical references. Also available online.
Blyden, Gregory D. "Modeling ship air conditioning maintenance costs using the Integrated Condition Assessment System (ICAS)". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Dec%5FBlyden.pdf.
Ye, Chen S. M. Massachusetts Institute of Technology. "A system approach to implementation of predictive maintenance with machine learning". Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118502.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 87-91).
Digital technology is changing the industrial sector, yet how to make rational use of some technologies and create considerable value in a variety of industrial scenarios is an issue. Many digital industrial companies have stated that they have helped clients with their digital transformation, create much value, but the real effects have not been shown in public. Venture capitals firms have made huge investment in potential digital industrial startups. Numerous industrial IoT platforms are emerging in the market, but a number of them fade soon after. Many people have heard about industrial maintenance technology, but they have difficulty in differentiate concepts such as reactive maintenance, planned maintenance, proactive maintenance, and predictive maintenance. Many people know that big data and Al are essential in industrial sector, but they do not know how to process, analyze, and extract value from industrial data and how to use Al algorithms and tools to implement a research project. This thesis analyzes the entire digital industrial ecosystem in various dimensions such as initiatives, technologies in related domains, stakeholders, markets, and strategies. This work also analyzes of the predictive maintenance solution in various dimensions such as background, importance, suitable scenarios, market, business model, and technology. The author plans an experiment for the predictive maintenance solution, including goal, data source and description, methods and steps, and flow and tools. Then author uses a baseline approach and an optimal approach to implement the experiment, including data preparation, selection and evaluation of both regression and classification models, and deep learning practice through neural network building and optimization. Finally, contributions and expectations, and limitations and future research are discussed. This work uses a system approach, including system architecting, system engineering, and project management, to complete the process of analysis, design, and implementation.
by Chen Ye.
S.M. in Engineering and Management
Edakara, Sibson Dalgo. "A novel methodology to investigate the performance of production line systems using an integrated product service system approach". Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/a-novel-methodology-to-investigate-the-performance-of-production-line-systems-using-an-integrated-product-service-system-approach(9d2163cc-511c-4801-bc9c-18f2f7b5b6a2).html.
Peterson, Reginald E. "Exploring Customers' Perceptions of Third Party Maintenance, Repair, and Operating Programs". ScholarWorks, 2016. https://scholarworks.waldenu.edu/dissertations/2170.
Schulz, Kimberly J. "Impact of the integrated maintenance concept on EA-6B readiness and maintenance support at NAS Whidbey Island, WA and NADEP Jacksonville, FL". Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02Jun%5FSchulz.pdf.
Peti, Philipp. "Diagnosis and maintenance in an integrated time triggered architecture tackling the trouble identified phenomenon". Saarbrücken VDM Verlag Dr. Müller, 2005. http://d-nb.info/989292177/04.
Schlunz, Evert Barend. "Decision support for generator maintenance scheduling in the energy sector". Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/18060.
ENGLISH ABSTRACT: As the world-wide consumption of electricity continually increases, more and more pressure is put on the capabilities of power generating systems to maintain their levels of power provision. The electricity utility companies operating these power systems are faced with numerous challenges with respect to ensuring reliable electricity supply at cost-e ective rates. One of these challenges concerns the planned preventative maintenance of a utility's power generating units. The generator maintenance scheduling (GMS) problem refers to the problem of nding a schedule for the planned maintenance outages of generating units in a power system (i.e. determining a list of dates corresponding to the times when every unit is to be shut down so as to undergo maintenance). This is typically a large combinatorial optimisation problem, subjected to a number of power system constraints, and is usually difficult to solve. A mixed-integer programming model is presented for the GMS problem, incorporating constraints on maintenance windows, the meeting of load demand together with a safety margin, the availability of maintenance crew and general exclusion constraints. The GMS problem is modelled by adopting a reliability optimality criterion, the goal of which is to level the reserve capacity. Three objective functions are presented which may achieve this reliability goal; these objective functions are respectively quadratic, nonlinear and linear in nature. Three GMS benchmark test systems (of which one is newly created) are modelled accordingly, but prove to be too time consuming to solve exactly by means of an o -the-shelf software package. Therefore, a metaheuristic solution approach (a simulated annealing (SA) algorithm) is used to solve the GMS problem approximately. A new ejection chain neighbourhood move operator in the context of GMS is introduced into the SA algorithm, along with a local search heuristic addition to the algorithm, which results in hybridisations of the SA algorithm. Extensive experiments are performed on di erent cooling schedules within the SA algorithm, on the classical and ejection chain neighbourhood move operators, and on the modi cations to the SA algorithm by the introduction of the local search heuristic. Conclusions are drawn with respect to the e ectiveness of each variation on the SA algorithm. The best solutions obtained during the experiments for each benchmark test case are reported. It is found that the SA algorithm, with ejection chain neighbourhood move operator and a local search heuristic hybridisation, achieves very good solutions to all instances of the GMS problem. The hybridised simulated annealing algorithm is implemented in a computerised decision support system (DSS), which is capable of solving any GMS problem instance conforming to the general formulation described above. The DSS is found to determine good maintenance schedules when utilised to solve a realistic case study within the context of the South African power system. A best schedule attaining an objective function value within 6% of a theoretical lowerbound, is thus produced.
AFRIKAANSE OPSOMMING: Met die wêreldwye elektrisiteitsverbruik wat voortdurend aan die toeneem is, word daar al hoe meer druk geplaas op die vermoë van kragstelsels om aan kragvoorsieningsaanvraag te voldoen. Nutsmaatskappye wat elektrisiteit opwek, word deur talle uitdagings met betrekking tot betroubare elektrisiteitsverskaffing teen koste-e ektiewe tariewe in die gesig gestaar. Een van hierdie uitdagings het te make met die beplande, voorkomende instandhouding van 'n nutsmaatskappy se kragopwekkingseenhede. Die generator-instandhoudingskeduleringsprobleem (GISP) verwys na die probleem waarin 'n skedule vir die beplande instandhouding van kragopwekkingseenhede binne 'n kragstelsel gevind moet word ('n lys van datums moet tipies gevind word wat ooreenstem met die tye wanneer elke kragopwekkingseenheid afgeskakel moet word om instandhoudingswerk te ondergaan). Hierdie probleem is tipies 'n groot kombinatoriese optimeringsprobleem, onderworpe aan 'n aantal beperkings van die kragstelsel, en is gewoonlik moeilik om op te los. 'n Gemengde, heeltallige programmeringsmodel vir die GISP word geformuleer. Die beperkings waaruit die formulering bestaan, sluit in: venstertydperke vir instandhouding, bevrediging van die vraag na elektrisiteit tesame met 'n veiligheidsgrens, die beskikbaarheid van instandhoudingspersoneel en algemene uitsluitingsbeperkings. Die GISP-model neem as optimaliteitskriterium betroubaarheid en het ten doel om die reserwekrag wat gedurende elke tydperk beskikbaar is, gelyk te maak. Drie doelfunksies word gebruik om laasgenoemde doel te bereik (naamlik doelfunksies wat onderskeidelik kwadraties, nie-lineêr en lineêr van aard is). Drie GISP-maatstaftoetsstelsels (waarvan een nuut geskep is) is dienooreenkomstig gemodelleer, maar dit blyk uit die oplossingstye dat daar onprakties lank gewag sal moet word om eksakte oplossings deur middel van kommersiële programmatuur vir hierdie stelsels te kry. Gevolglik word 'n metaheuristiese oplossingsbenadering ('n gesimuleerde temperingsalgoritme (GTA)) gevolg om die GISP benaderd op te los. 'n Nuwe uitwerpingsketting-skuifoperator word in die konteks van GISP in die GTA gebruik. Verder word 'n lokale soekheuristiek met die GTA vermeng om 'n basteralgoritme te vorm. Uitgebreide eksperimente word uitgevoer op verskeie afkoelskedules binne die GTA, op die klassieke en uitwerpingsketting-skuifoperators en op die verbasterings van die GTA meegebring deur die lokale soekheuristiek. Gevolgtrekkings word oor elke variasie van die GTA se e ektiwiteit gemaak. Die beste oplossings vir elke toetsstelsel wat gedurende die eksperimente verkry is, word gerapporteer. Daar word bevind dat die GTA met uitwerpingsketting-skuifoperator en lokale soekheuristiek-verbastering baie goeie oplossings vir die GISP lewer. Die verbasterde GTA word in 'n gerekenariseerde besluitsteunstelsel (BSS) geïmplementeer wat 'n gebruiker in staat stel om enige GISP van die vorm soos in die wiskundige programmeringsmodel hierbo beskryf, op te los. Daar word bevind dat die BSS goeie skedules lewer wanneer dit gebruik word om 'n realistiese gevallestudie binne die konteks van die Suid-Afrikaanse kragstelsel, op te los. 'n Beste skedule met 'n doelfunksiewaarde wat binne 6% vanaf 'n teoretiese ondergrens is, word ondermeer bepaal.
Arcella, Joseph Louis. "Comparative Analysis of Current Performance-Based Maintenance Methods to Improve Virginia Highways". Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19321.
Master of Science
Lazakis, Iraklis. "Establishing an innovative and integrated reliability and criticality based maintenance strategy for the maritime industry". Thesis, University of Strathclyde, 2011. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=16815.
Sardellini, Eleonora. "Content and English Language Integrated Learning: The use of Moodle in Aircraft Maintenance Training Programs". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2015. http://amslaurea.unibo.it/8172/.
Boral, Soumava. "Integrated Frameworks for Effective Multi-criteria Decision Making in Reliability Centred Maintenance of Industrial Machines". Thesis, Curtin University, 2021. http://hdl.handle.net/20.500.11937/88758.
Sa'ad, Aisha. "Developing integrated maintenance strategies for renewable energy sources based on analytical methods and artificial intelligence (AI) : comparisons and case study". Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0080.
The development of renewable energy, especially solar and wind energy, over the recent years has gained global attention as an alternative method of generating energy experiencing exceptional growth in its production. In The Global Energy report, global solar energy is expected to have reached a cumulative capacity of 1TW while the wind energy is expected to have multiplied up to 3 to 4 times from mega production in the year 2020. This increase in the solar and wind power implies very significant financial investments. However, with this huge investment potential and significant increase in generation capacity, there is an additional, often overlooked responsibility: managing the power plants to ensure the lowest total life cycle cost (Life Cycle Cost). Like any standard production system, renewable energy (solar and wind energy in our case) generation components are subject to random failure, which interrupts production and supply of demand. Maintenance is identified as a major cause of accidents, lack of technical know-how of an equipment and the absence of a good maintenance routine plan. As part of the efforts to improve the efficiency and performance of renewable energy power plants, we propose models to optimize the power production and maintenance of our selected case studies (Sokoto solar plant and Katsina wind farm). In this regard, we developed new integrated maintenance policies integrated with production of the energy production from solar and wind energy systems. The preventive maintenance strategy adopted in this thesis is perfect maintenance strategy on the selected components for maintenance and an imperfect selective maintenance on the system (solar PV and wind turbine). Battery shortage in case of under-production and maintenance losses are challenges considered in this study. The methodology we developed entails solving the problem of energy production and maintenance optimization by using the theoretical method as well as machine learning method (ANN and SVM) in order to satisfy a random demand of energy during a finite horizon. We also studied the influence of environmental and operational condition of the systems and then validated the models by numerical examples and sensitivity studies proving the robustness of the developed models
Milne, Stuart H. "Employer adoption of an HMO option for employees : an integrated institutional and resource dependence perspective". Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/28972.
Zhao, Yongjun. "An Integrated Framework for Gas Turbine Based Power Plant Operational Modeling and Optimization". Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/10580.
Hoyningen-Huene, Wiebke von [Verfasser]. "Essays on integrated maintenance and production scheduling with stochastic failures and non-resumable jobs / Wiebke von Hoyningen-Huene". Kiel : Universitätsbibliothek Kiel, 2015. http://d-nb.info/1075190509/34.
Abubakar, Aminu Sahabi. "Contribution to the development of new maintenance strategies integrated to control charts for a production process under service levels, operational, and quality constraints". Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0055.
The current production industry is characterise by significant progress: a massive increase in high technology, the emergence of exigent customers, competitive markets, varied product quality, and random demands required the collaborations of the inter-related aspects of production. The production, maintenance, and quality are the most critical aspects of the industrial system. We are interested in optimising maintenance that plays a critical role in customer satisfaction, sustainability, and the development of companies. Our study is centred on developing production and maintenance integrated into a control chart of quality policy. We propose new integrated maintenance strategies with an in-depth analysis of the continuous production process reliability improvements and treated under customer requirements (Service, quality, and cost) constraints. The integration and optimal coordination of these factors of production is not easy and represent a challenge for industrial companies, and are more challenging with multi-assignable causes of production process variation. To address this problem, this research work employed the use of a control chart tool in combination with the AFNOR principles known as Rule of seven as involved in quality management. To monitor, analyses and direct appropriate maintenance actions for continuous system reliability improvements along the different multiple process scenarios as decision levels. We use the interactions between the production process and product quality for strategies of maintenance which reduce the failure of the production system by improving process reliability and reducing the no conformal products. The study Significantly focused on quality, quality tools, and their applications in production and maintenance control. The technique we used to optimise the maintenance and quality control of an integrated production system is a control chart tool based on statistical measurement and analysis of quality parameters. We model different production problems and develop a control policy for randomly failing production systems that must satisfy customer requirements dynamically throughout the finite production horizon. We introduced a mathematical model to minimise the total costs of production, inventory, maintenance, and quality control. The optimisation of the maintenance strategy was integrated into a control chart tool information. Based on the production rate variation and its impact on machine degradation the number of maintenance, times, and intervals needed for prudent decision-making is determined by the developed algorithm. In this context, this research presents the derivation for different cases of all the probabilities for the process to be in or out of control, the average run lengths, and the restoration cycle durations. Based on the degradation factor, new failure rate equations are formulated, and then the average failure rate for each case, we formulated different maintenance cost optimisation models. The proposed approach is useful for precise calculation and minimisation of the total maintenance cost. Which optimises total production cost considering all possible production process statuses due to multiple causes. Our work contributes to the emergence of quality management and performance improvement techniques that will contribute to the development of production companies
Bouzoubaa, Maryem. "Stratégies de maintenance intégrée à la production d'énergie dans un parc éolien sous contraintes opérationnelles et environnementales". Electronic Thesis or Diss., Université de Lorraine, 2021. https://docnum.univ-lorraine.fr/public/DDOC_T_2021_0351_BOUZOUBAA.pdf.
Globally, the development of wind farms is experiencing exceptional growth, visible through the increase of wind power installed annually and global wind power production. 2020 was the best year in the history of the global wind industry and it is estimated that wind turbine installation should grow three times faster over the next decade. Any energy production system is subject to random breakdowns which trouble production plans. Aging, breakdowns and maintenance times are examples of random phenomena often observed in those systems. In the particular case of wind turbines, the highly volatile and uncertain nature of the wind means that the duration of maintenance actions must be minimized in order to maximize the availability of the wind turbine and therefore its energy production. In addition to this, the risks associated with maintenance make it the major cause of accidents in the wind energy sector. Considering the lack of training for maintenance technicians and the absence of a prevention plan, a maintenance plan optimizing the number of interventions and their duration and considerably reducing the technical, economic and human consequences linked to these operations is essential. Maintenance and production are two main functions for any type of production. In practice, these two functions are often managed separately despite being in reality so close. Indeed, integration policies can improve productivity and reduce costs considerably. In this context, the research work proposed in this thesis consists in determining new maintenance policies integrated into energy production for a wind farm. Two integrated maintenance strategies were tested: perfect then combined imperfect / selective coupled to energy production, satisfying a service rate while taking into account environmental and operational constraints and. Indeed, for each strategy developed, the goal is to simultaneously determine an economical energy production plan and an optimal maintenance plan minimizing a total cost of energy production and maintenance. The particularity of this study is to consider the impact of the variation in energy production on the degradation of the wind turbine. The problem was modeled by the development and optimization of analytical models, then validated by numerical examples and sensitivity studies proving the robustness of the analytical models developed
Suchomel, Bruce Richard. "A strategic analysis of budgeting for integrated logistical support of defense systems". CSUSB ScholarWorks, 1991. https://scholarworks.lib.csusb.edu/etd-project/578.
Reasor, Roderick. "A decision support system for integrated design analysis of a repairable item and it's logistic support system". Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07102007-142510/.
Barroso, Rafael. "Diminuição do tempo em manutenção preventiva em uma frota de caminhões de uma mineração de grande porte: uma discussão baseada na manutenção produtiva total". Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-08032019-114508/.
As it is directly under global economic factors, the mining industry tends to develop to seek leaner production processes, combining lower operational costs to better productive rates. In this context, the main objective of this study is to evaluate the general behavior of the time spend in preventive maintenance of a truck fleet from a large-scale mining project, being the analysis performed in a time window based on an economic period of local minimum in copper prices. From the observed behavior a discussion is made under the assumptions of the management methodology named Total Productive Maintenance in order to discuss the possible main risks and/or consequences that can be faced by the project and how these decisions qualitatively indicate the degree of maturity between production and maintenance in a mining project. In the end, it can be concluded that an intense work is still needed to translate the TPM premises into the mineral industry, being necessary to seek ways to adapt processes and metrics that are more suited to the extractive industry environment (which is very different from the manufacturing industry, where the program started). In addition, it is clear that the application of TPM is possible and welcome in mining since there are several academic studies in the area - in other words, the most challenging point in question is probably that an endogenous TPM program is developed within a mineral project.
Thaesler-Garibaldi, Maria P. "A methodology to Develop an Integrated Engineering System to Estimate Quantities for Bridge Repairs at the Pre-Design Stage". Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6915.
Aronsson, Linus. "Integrerat brounderhåll". Thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-22560.
Trafikverket is responsible for the public traffic network in Sweden. The traffic network contains around 15 500 bridges that constantly are exposed of different kinds of degradation. The bridges must therefore be maintained at regular intervals both to keep bridges in good condition and to prevent the degradation accelerated. During the last years Trafikverket has developed a new procurement method of bridge maintenance. The method involves that all bridges maintenance of a region is being bundled to one contract that an entrepreneur handles for five years, a socalled bridge maintenance package. A bridge maintenance package exists of preventive maintenance, remedial maintenance and emergency maintenance. The purpose of this paper is to follow up the new form to procure bridge maintenance in package. The goal is to clarify the gains or losses made in efficiency since the introduction of bridge maintenance in package. Methods used in the creating of this thesis are literary studies, meetings and interviews along with analysis, calculations and comparisons. The result lays the foundation for the client, contractor and consultant working in the bridge maintenance package and further what has changed from the way they were working on bridge maintenance earlier. The largest efficiency gains are administrative. Because a bridge maintenance package is a turnkey contract the majority of responsibility is put on the contractor, instead of the client, which gives the client time for other tasks. Nowadays the bridge maintenance is in a separate contract which lasts for a longer time which gives the client a more qualified contractor for that kind of work which is reducing the number of fundamental questions and gives the client extra time. The contractor will get more operating freedom and at the same time more time to plan maintenance work. Through frequent communication between client and contractor decision-making paths becomes shorter which gives more efficiency throughout the entire process. The package in the region Skaraborg was one of the first bridge maintenance packages and it differs a lot from later maintenance packages. The biggest difference is in the contract documents. The package in Skaraborg was based on a fictional bridge while the more recent maintenance packages documents addresses the real action which the contractor will perform during the contracted period.
Milana, Milana. "The Development of a Hybrid Knowledge-Based System for Integrated Maintenance Strategy and Operations in an Automotive Industry Environment: The Development of a Hybrid Knowledge-Based (KB) System/ Gauging Absences of Pre-Requisites (GAP)/Analytic Hierarchy Process (AHP) Methodology for Integrated Maintenance Strategy and Operations in an Automotive Industry Environment". Thesis, University of Bradford, 2018. http://hdl.handle.net/10454/17446.