Готові списки джерел за темами / Spare Parts Production

Добірка наукової літератури з теми "Spare Parts Production"

Автор: Grafiati

Опубліковано: 13 вересня 2021

Оновлено: 1 лютого 2022

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Статті в журналах з теми "Spare Parts Production":

Savić, Sima. "Methodology of conquering the spare parts production." Vojnotehnicki glasnik 46, no. 6 (1998): 295–301. http://dx.doi.org/10.5937/vojtehg9803295s.

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Cyplik, P., L. Hadas, and M. Fertsch. "Production planning model with simultaneous production of spare parts." International Journal of Production Research 47, no. 8 (February 27, 2009): 2091–108. http://dx.doi.org/10.1080/00207540802644837.

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Onken, Ann-Kathrin, Finn Meiners, and Kirsten Tracht. "Spare parts for selectively assembled linked parts in micro production." Procedia Manufacturing 19 (2018): 82–86. http://dx.doi.org/10.1016/j.promfg.2018.01.012.

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Zhang, Xiao Yu, Chen Liu, and Nai Zong Yang. "Spare Parts Production Planning Model Based on Fuzzy Programming." Advanced Materials Research 605-607 (December 2012): 501–6. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.501.

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In the field of civil aviation, MRO market has a strong seasonal characteristic. Combined with research on continuous airworthiness of the aircraft, the spare parts order procedure and flight planning process, and analysis on fuzzy demand and fuzzy production capacity, the model of spare parts order with fuzzy reliability constraints is established. Under the background of actual civil aviation enterprises, spare parts quantitative order model and algorithm in spare parts planning decision system in non-deterministic environment are put forward. It applies the theories and methods of fuzzy mathematics and probability and statistics, building the target programming model for reconfigurable spare parts, to formulate optimal reconfigurable spare parts production plan. Overall steps to solve the model are proposed, which make decision process in fuzzy environment more flexible, and reduce the number of emergency orders.

Karjigi, Shreyank, Rishi Rao, Viraj Kotian, and Ashish Jadhav. "System for Appropriation & Management of Vehicular Spare-Parts." ITM Web of Conferences 40 (2021): 03033. http://dx.doi.org/10.1051/itmconf/20214003033.

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This paper proposes a system that simplifies the procurement and sale of vehicular spare parts and is particular focused on automotive spare parts. Car manufacturers have immense pressure to provide spare parts for all vehicles. For a car in production spares are available until the term decided by the manufacturer. For a car that is off production spare parts are available through sources such as local market and third-party dealers. But, sometimes there can be a scenario where a customer wants to buy a part from the manufacturer but the part may be very expensive for the customer. The main objective of the work is to bring the manufacturer, supplier and buyer on a common platform and enable customers to purchase spare parts in an efficient and easy manner providing multiple options through a cloud based platform.

Faccio, Maurizio. "Service spare parts versus production parts: a centralised or decentralised warehouse?" International Journal of Logistics Systems and Management 20, no. 4 (2015): 516. http://dx.doi.org/10.1504/ijlsm.2015.068491.

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Ayele, Yonas Zewdu, A. Barabadi, and J. Barabady. "Dynamic spare parts transportation model for Arctic production facility." International Journal of System Assurance Engineering and Management 7, no. 1 (September 14, 2015): 84–98. http://dx.doi.org/10.1007/s13198-015-0379-x.

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Durão, Luiz Fernando C. S., Alexander Christ, Eduardo Zancul, Reiner Anderl, and Klaus Schützer. "Additive manufacturing scenarios for distributed production of spare parts." International Journal of Advanced Manufacturing Technology 93, no. 1-4 (May 30, 2017): 869–80. http://dx.doi.org/10.1007/s00170-017-0555-z.

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Amalu, E. H., and A. O. Akii Ibhadode. "Engine Spare Parts Production through Copy Manufacture and Substitution Approach." Advanced Materials Research 18-19 (June 2007): 475–80. http://dx.doi.org/10.4028/www.scientific.net/amr.18-19.475.

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Zhang, Yuan, Stefan Jedeck, Li Yang, and Lihui Bai. "Modeling and analysis of the on-demand spare parts supply using additive manufacturing." Rapid Prototyping Journal 25, no. 3 (April 8, 2019): 473–87. http://dx.doi.org/10.1108/rpj-01-2018-0027.

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PurposeDespite the widespread expectation that additive manufacturing (AM) will become a disruptive technology to transform the spare parts supply chain, very limited research has been devoted to the quantitative modeling and analysis on how AM could fulfill the on-demand spare parts supply. On the other hand, the choice of using AM as a spare parts supply strategy over traditional inventory is a rising decision faced by manufacturers and requires quantitative analysis for their AM-or-stock decisions. The purpose of this paper is to develop a quantitative performance model for a generic powder bed fusion AM system in a spare parts supply chain, thus providing insights into this less-explored area in the literature.Design/methodology/approachIn this study, analysis based on a discrete event simulation was carried out for the use of AM in replacement of traditional warehouse inventory for an on-demand spare parts supply system. Generic powder bed fusion AM system was used in the model, and the same modeling approach could be applied to other types of AM processes. Using this model, the impact of both spare parts demand characteristics (e.g. part size attributes, demand rates) and the AM operations characteristics (e.g. machine size and postpone strategy) on the performance of using AM to supply spare parts was studied.FindingsThe simulation results show that in many cases the AM operation is not as cost competitive compared to the traditional warehouse-based spare parts supply operation, and that the spare parts size characteristics could significantly affect the overall performance of the AM operations. For some scenarios of the arrival process of spare parts demand, the use of the batched AM production could potentially result in significant delay in parts delivery, which necessitates further investigations of production optimization strategies.Originality/valueThe findings demonstrate that the proposed simulation tool can not only provide insights on the performance characteristics of using AM in the spare parts supply chain, especially in comparison to the traditional warehousing system, but also can be used toward decision making for both the AM manufacturers and the spare parts service providers.

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Дисертації з теми "Spare Parts Production":

Yesilkayali, Selin. "Integrated classification methods for spare parts : A case study on a mass production factory." Thesis, Mittuniversitetet, Institutionen för informationssystem och –teknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-39707.

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Inventory management is a complex system which involves different stakeholders from multiple areas in a company which creates a limitation when seeking information between involved staff. Having the right procedure of tracking regular and critical spare parts will give a better control and efficiency in the production process. It is important to have the right classification method to facilitate critical spare parts. The incorrect criteria classification can be achieved in case inventory management have the wrong systematic procedure. Classification methods have different purposes and achieve the highest utilization by combining a variety of methods. By integrating classification methods, set limits and combination of multiple criteria decision analysis can be performed. The study has conducted a case study to compare and evaluate the performance of inventory management in a trustworthy and efficient way. A theoretical framework is constructed with the intention on identify which classification methods can be combined and applied to a production factors criterion. Based on interviews with stakeholders from maintenance, warehouse, and production area related to spare parts and the company’s software system. Two perspectives were used to map the qualitative and quantitative measures. The results show 14 criteria were defined as parameters that measure the performance of criticality in spare parts. The conclusion of both perspectives suggests combining and implement an integration of AHP and ABC classification methods. A proof of concept is demonstrated on AHP analysis and ABC analysis to identify the critical spare parts and the criteria.

Zahedi-Hosseini, F. "Modelling and simulation for the joint optimisation of inspection maintenance and spare parts inventory in multi-line production settings." Thesis, University of Salford, 2017. http://usir.salford.ac.uk/44353/.

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A simulation methodology is developed to model the joint optimisation of preventive maintenance and spare parts inventory in multi-line settings. The multi-line machines are subject to failure, based on the delay-time concept, and a selection of policies are used for the replenishment of the machines’ critical component. Production lines of varied configurations are modelled and described in three principal chapters. Firstly, the optimisation of preventive maintenance for a multi-line production system is developed in the context of a case study. The policy proposed indicates that consecutive inspection with priority for failure repair is cost-optimal, which suggests a substantial maintenance cost reduction of 61% compared to the run-to-failure policy. The contribution of this study is first and foremost in narrowing the gap between the theory and practice of managing multi-line systems, and in particular, that the scenarios and policies considered have important economic and engineering implications. In a second study, spare parts provisioning for a single-line system is considered, given that the demand for industrial plant spare parts should be driven, at least in part, by maintenance requirements. A paper-making plant provides a real context, for which simulation models are developed to jointly optimise the planned maintenance and the associated spare part inventory. This challenge is addressed in the context of the failure of parts in service and the replacement of defective parts at inspections of period T, using the delay-time concept, and a selection of replenishment policies. The results indicate that a periodic review policy with replenishment twice as frequent as inspection is cost-optimal. Further discussions and sensitivity analysis give insights into the characteristics and features of the policies considered. Finally, in the third study, the joint optimisation of preventive maintenance and the associated spare parts inventory for a multi-line system is developed using an idealised context. It is found that a review policy with inspection as frequent as replenishment using just-in-time (JIT) ordering is cost-optimal, and also the lowest risk policy; it is associated with the lowest simultaneous machine downtime and low stock-out cost-rates. This is a significant contribution to the literature. An implication of the proposed methodology is that, where mathematical modelling is intractable, or the use of certain assumptions make them less practical, simulation modelling is an appropriate solution tool. Throughout this thesis, the long-run average cost per unit time or cost-rate is used as the optimality criterion. In other contexts, one may wish to use availability or reliability instead. To do so would not change the methodology that is presented here.

Atak, Erman. "Incentive, Subsidy, Penalty Mechanisms And Pooled, Unpooled Allocation Of Production Capacity In Service Parts Management Systems." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613408/index.pdf.

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In this thesis, two systems are analyzed in order to gain insight to the following issues: (i) Effect of incentive, subsidy and penalty designs on decentralized system, (ii) effect of using production facility as pooled capacity (pooled system) and dedicated capacity (unpooled system) on capacity utilization and system profit. Regarding the first issue, three models are defined
decentralized model, centralized model and decentralized model with incentive, subsidy, penalty designs. In all models, there are two dealers and one item is under consideration and lateral transshipments are allowed. Dealers operate with four inventory level decision (strategies) that consists of base stock level, rationing level, transshipment request level and customer rejection level. Under the decentralized system, a dealer sets its operating strategy according to the strategy of the other dealer and maximizes its own infinite horizon discounted expected profit. In the centralized system, a central authority (say manufacturer) exists, which considers the system-wide infinite horizon discounted expected profit, and makes all decisions. Under decentralized system with incentive, subsidy, penalty designs, manufacturer tries different designs on decentralized system namely revenue sharing, holding cost subsidy, request rejection penalty, transportation cost subsidy and commission subsidy in order to v align decentralized system with centralized system. According to the results obtained, this alignment works best with nearly 40% revenue sharing percentage, low rejection penalty, high transportation cost subsidy under low transportation cost and commission subsidy under very low or very high commissions. Holding cost subsidy, on the other hand, is not a good strategy since it declines decentralized system profit. Considering the second issue, two systems are examined
pooled system and unpooled system. Both systems are centrally managed. In the pooled system, all capacity is dynamically allocated to either dealer considering maximization of system profit. In the unpooled system, capacity is shared among dealers and dealers are always allocated same percentage of the capacity. Infinite horizon average expected profit is maximized in both systems. The dealer having lower holding cost is allocated higher capacity in both pooled and unpooled system
however, exceptions exist in the unpooled system under low arrival rate. Highrevenue dealer is always allocated higher capacity in both pooled and unpooled system. Arrival rate affects both systems such that total capacity utilization increases with increasing arrival rate. From the profit point of view, pooled system has great advantage under low demand rate in general.

Yao, Suqin. "Computer-Aided Manufacturing Planning (CAMP)of Mass Customization for Non-rotational Part Production." Link to electronic dissertation, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-1216103-153523/.

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Dissertation (Ph.D.) -- Worcester Polytechnic Institute.
Keywords: Computer aided manufacturing planning; Object-oriented systems analysis (OSA); Feature; manufacturing resource capability; setup planning; multi-part fixture Includes bibliographical references (p.146-154).

Klus, Jakub. "Nová koncepce údržby a provozu výrobních technologií." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-449712.

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This diploma thesis deals with a new concept of maintenance and operation of production technologies, where spare parts are manufactured using rapid prototyping methods. The options are compared with currently used methods. Furthermore, methodological recommendations are written on how to proceed with the application. The aim of the work is to evaluate the concept and confirm the theoretical assumptions on a case study.

Testa, Arianna. "Riorganizzazione dei flussi logistici di un magazzino ricambi in ottica lean: il caso Toyota Material Handling Europe." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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Lo studio di cui tratta l’elaborato si sviluppa durante il periodo di tirocinio in azienda. L’obbiettivo del lavoro si concretizza nell’applicazione di metodologie lean all’interno del magazzino Toyota TMHE di Bologna, per ottenere un miglioramento in termini di bilanciamento dei flussi presenti e quindi di efficienza operativa dello stesso. Nello studio vengono descritte le metodologie e gli aspetti che stanno alla base delle scelte effettuate durante la riprogettazione del magazzino, evidenziando tutti i fattori che ivi concorrono. Il primo passo è un dettagliato periodo di analisi dello stato attuale del magazzino, in cui si cerca di individuare tutti i muda, ovvero gli sprechi, che concorrono nel generare inefficienza. In seguito, viene determinato un set di soluzioni possibili alle criticità individuate, all’interno del quale vengono selezionate le soluzioni più congrue alle esigenze dell’azienda, tenendo conto dei vincoli di tipo strutturale e informativo che concorrono alla complessità del problema. Il progetto viene poi concretizzato implementando effettivamente la soluzione in azienda, controllandone gli effetti sui flussi, sulle strutture presenti e sui lavoratori. Infine, viene verificata la sua efficacia tramite l’utilizzo di strumenti qualitativi e quantitativi, che si conclude con il riscontro di un miglioramento in linea con gli obiettivi prefissati.

Olafsson, Sveinn V. "An analysis for total productive maintenance implementation." Master's thesis, This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03302010-020147/.

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Fristedt, Erika, and Malin Gustavsson. "Styrningens roll vid en strategiförändring : - från eftermarknad till att inkludera serieproduktion." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85753.

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Abstrakt Bakgrund: Bilindustrin står i dagsläget mitt i en omstrukturering av marknaden, där ansvar för produktion av detaljer förflyttas från biltillverkarna till underleverantörerna. Med denna omstrukturering följer högre krav på kvalitetsnivå och kostnadspress som underleverantörerna måste förhålla sig till. Fallföretaget (Företag X) gjorde cirka 2015 en strategiförändring från att enbart tillverka detaljer till reservdelsmarknaden (eftermarknad) till att även producera till nybilsmarknaden (serieproduktion) där målet var att skapa tillväxt och lönsamhet. Efter strategiförändringen har Företag X vuxit snabbt, men samtidigt har lönsamheten sjunkit till att 2018 vara obefintlig. Affärerna som upphandlas uppvisar positiva marginaler, vilket skapar förvirring i företaget om orsakerna bakom de finansiella prestationerna. Någonstans i deras processer sker något som styrningen inte fångar eller förvarnar om. Syfte: Syftet med studien är att kartlägga strategiförändringen, implementeringen och Företag X:s styrning för att skapa en ökad förståelse för hur styrning kan stödja en strategiförändring från eftermarknad till att även inkludera serieproduktion. Vidare skall studien bidra med rekommendationer för kritiska egenskaper i styrningen som behöver fokuseras på i samband med en strategiförändring. Ett bidrag skapas även genom att avbilda den resa Företag X har genomgått och vilka utmaningar den har bidragit med. Metod: Studien grundas i en fallstudie på Företag X, där en växling mellan referensramen och den empiriska insamlingen har nyttjats för att möjliggöra en justering av referensramen för att matcha studiens riktning. Genom att använda metoderna kunde vi uppfylla syftet med studien och därmed skapa ett relevant, teoretiskt bidrag till forskningen. Resultat: Företag X:s styrning fångar inte beslutsrelevant information och därmed skapas en problematik i företaget. De måste förtydliga styrningen utefter de rekommendationer som delges. Vidare är de kritiska egenskaperna som behöver fokuseras på i styrningen: stödjande, signalerande, diagnostiserande, säkerställande, informationsspridande och motivationsskapare.
Abstract Background: The automobile industry is currently experiencing a reconstructuring of the market, where the responsibility of detail production is transferred between the car manufacturers to their subcontractors. The transference of responsibility also includes an increase in demand from the car manufacturers to the subcontractors to deliver higher quality products at a low cost. The case company (Company X) changed their strategy 2015 to include new car manufacturing in their already existing spare-part production with the intention to create growth and profitability. After the strategic change Company X has grown rapidly, but at the same time profitability has decreased and 2018 the profitability was non-existent. The business agreements show positive margins, which creates confusion in the company about is causing the decrease in financial performance. Somewhere in their processes something is happening that the management control systems aren’t capturing or warn about. Purpose: The purpose of the study is to map the strategy change, implementation and Company X's management control to create an increased understanding of how management control can support a strategy change from only producing spare-parts to also include manufacturing of new cars. Furthermore, the study will contribute with recommendations for critical features of management control that needs to be focused upon during strategic change. A contribution is also created by depicting the journey that Company X has undergone and what challenges it has contributed with. Method: The study is based on a case study of Company X, where an iteration between the reference frame and the empirical collection took place to enable an adjustment of the reference frame to match the direction of the study. By utilizing the methods, we were able to fulfill the purpose of the study and thereby create a relevant, theoretical contribution to the research. Conclusion: Company X's management control does not capture decision-relevant information and thus problems are created within the organization. They ought to change their management control in accordance to the recommendations. Furthermore, the critical features that need to be focused on are: supportive, signaling, diagnosing, securing, information spreading and motivation creator.

Granzow, Michael C., and University of Lethbridge Faculty of Arts and Science. "Bringing people to the park : inclusion and exclusion in the production of public space." Thesis, Lethbridge, Alta. : University of Lethbridge, Dept. of Sociology, 2010, 2010. http://hdl.handle.net/10133/2535.

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In 2003 the Rotary Club of Lethbridge, Alberta proposed a revitalization of Galt Gardens, a small historic park in Lethbridge‘s downtown which was perceived to be the focus of particular kinds of “negative use.” Over the course of the revitalization the park changed significantly – public washrooms and a water feature were installed, and private security guards were introduced. According to the local newspaper, developments have transformed the park into an “idyllic scene of children splashing and playing, families picnicking and people strolling” (Gauthier, 2008). This thesis explores the revitalization of Galt Gardens through a consideration of various texts and practices that (re)produce, not only the park, but also the “public” (and “non-public”). My analysis focuses on the ways in which a revitalized Galt Gardens is discursively represented and materially practiced to include and exclude particular users and uses, with potential consequences for the construction of public social space.
vii, 168 leaves : ill. ; 29 cm

Öberg, Olivia. "Negotiating Space : A Study of the Production of Banlieues in Paris through Media Representations of Urban Youth Violence." Thesis, Uppsala universitet, Institutionen för kulturantropologi och etnologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-322584.

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Книги з теми "Spare Parts Production":

Moncrief, Eugene C. Production spare parts: Optimizing the MRO inventory asset. New York: Industrial Press, 2005.

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Ng, Francis. Production sharing in East Asia: Who does what for whom and why? Washington, DC (1818 H St., NW, Washington 20433): World Bank, Development Research Group, Trade, 1999.

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Office, General Accounting. Procurement: Spare parts and support equipment for Air Force C-5 transport aircraft : briefing report to the chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives. Washington, D.C: The Office, 1988.

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Office, National Audit. Ministry of Defence: Production costs of defence equipment in non-competitive contracts : report by the Comptroller and Auditor General. London: HMSO, 1985.

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Office, General Accounting. Procurement: DOD can use economic production data more effectively : report to the Secretary of Defense. Washington, D.C: The Office, 1986.

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Office, General Accounting. Defense acquisitions: Actions to improve Navy SPAWAR low-rate initial production decisions : report to the Secretary of the Navy. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 2001.

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Office, General Accounting. Defense acquisitions: Recent F-22 production cost estimates exceeded congressional limitation : report to the Chairman, Subcommittee on National Security, Veterans Affairs, and International Relations, Committee on Government Reform, House of Representatives. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 2000.

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Office, General Accounting. Procurement: Responses to questions posed by Beretta on the M9 handgun : report to congressional requestors. Washington, D.C: The Office, 1989.

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Office, General Accounting. Procurement: Public utilities' compliance with subcontracting plan requirements : report to the chairman, Committee on Small Business, House of Representatives. Washington, D.C: The Office, 1989.

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Office, General Accounting. Procurement: DOD efforts relating to nondevelopmental items : report to the chairmen, House and Senate Committees on Armed Services. Washington, D.C: The Office, 1989.

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Частини книг з теми "Spare Parts Production":

Amalu, E. H., and A. O. A. Ibhadode. "Engine Spare Parts Production through Copy Manufacture and Substitution Approach." In Advanced Materials Research, 475–80. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-450-2.475.

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Ślaski, Paweł. "MANAGEMENT OF THE SPARE PARTS STORAGE IN THE PRODUCTION PROCESS USING THE MONTE CARLO METHOD." In Quality Production Improvement - QPI, edited by Robert Ulewicz, 261–67. Warsaw, Poland: Sciendo, 2019. http://dx.doi.org/10.2478/9783110680591-035.

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Gölbaşı, O. "Effect of Spare Parts Policy on Equipment Production Loss in Mining." In Proceedings of the 27th International Symposium on Mine Planning and Equipment Selection - MPES 2018, 489–96. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-99220-4_41.

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Peron, Mirco, Nils Knofius, Rob Basten, and Fabio Sgarbossa. "Impact of Failure Rate Uncertainties on the Implementation of Additive Manufacturing in Spare Parts Supply Chains." In Advances in Production Management Systems. Artificial Intelligence for Sustainable and Resilient Production Systems, 291–99. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-85914-5_31.

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Savolainen, Jyrki, and Mikael Collan. "Quantifying the Economic Feasibility of Additive Manufacturing: Simulating Production Lifetimes in the Context of Spare Parts Production." In Technical, Economic and Societal Effects of Manufacturing 4.0, 149–67. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46103-4_8.

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Adhikary, Debasis Das, and Dipak Kumar Jana. "Integrated-Optimization of Production, Preventive Maintenance and Spare Parts Inventory of Continuous Operating Series Systems." In Recent Advances in Intelligent Information Systems and Applied Mathematics, 130–45. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-34152-7_10.

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Maucieri, Carmelo, Carlo Nicoletto, Erik van Os, Dieter Anseeuw, Robin Van Havermaet, and Ranka Junge. "Hydroponic Technologies." In Aquaponics Food Production Systems, 77–110. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15943-6_4.

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AbstractHydroponics is a method to grow crops without soil, and as such, these systems are added to aquaculture components to create aquaponics systems. Thus, together with the recirculating aquaculture system (RAS), hydroponic production forms a key part of the aqua-agricultural system of aquaponics. Many different existing hydroponic technologies can be applied when designing aquaponics systems. This depends on the environmental and financial circumstances, the type of crop that is cultivated and the available space. This chapter provides an overview of different hydroponic types, including substrates, nutrients and nutrient solutions, and disinfection methods of the recirculating nutrient solutions.

Moore-Cherry, Niamh. "Beyond Art in ‘Meanwhile Spaces’: Temporary Parks, Urban Governance and the Co-production of Urban Space." In The Impact of Artists on Contemporary Urban Development in Europe, 207–24. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-53217-2_9.

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Ceylan, Pinar. "Regional variation in the distribution of property rights over land in sixteenth-century Ottoman rural Manisa." In Disuguaglianza economica nelle società preindustriali: cause ed effetti / Economic inequality in pre-industrial societies: causes and effect, 351–68. Florence: Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-053-5.23.

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Concentrating on the Western Anatolian district of Manisa and employing tax surveys dating 1575, this study points to the regional variation in property rights institutions, which resulted in different inequality regimes across space. Empirical evidence suggests the existence of two agricultural production systems characterized by different property and surplus relations, in the southern and northern parts of the district in the late sixteenth century. Accordingly, inequality structures in these areas reflected region-specific patterns of property rights distribution within and across direct producers and landlords’ classes.

Berg, Linda, and Anna Sofia Lundgren. "We Were Here, and We Still Are: Negotiations of Political Space Through Unsanctioned Art." In Pluralistic Struggles in Gender, Sexuality and Coloniality, 49–80. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47432-4_3.

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Abstract In this chapter, we examine the work of the Sámi artist Anders Sunna and the Egyptian artist Bahia Shebab in order to address strategies of artistic criticism of the relations between states and their citizens. Both artists are protesting against contemporary processes relating to space, state and nation, and they express themselves in ways that are embedded in the aesthetics of unsanctioned street art. This expression constitutes an interesting form of politics, situated somewhere in-between, or alongside, party politics and the practices of civil society. Our aim is to describe and discuss what we see as specifically effective and dynamic themes in the chosen artwork—the use of space as object and methodology, and the production of iconic imageries within fantasies of protest. The stencils and spray paintings of Shehab and Sunna offer us keys to exploring efforts to artistically reveal and dismantle national and neocolonial power.

Тези доповідей конференцій з теми "Spare Parts Production":

Coffey, Tiarnan, Christopher Rai, John Greene, and Stephen O’Brien Bromley. "Subsea Spare Parts Analysis Optimisation." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-96100.

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Abstract The main objective of this paper is to present a fully quantitative methodology combining reliability, availability and maintainability (RAM) analysis and cost-benefit analysis (CBA) approaches to determine the optimum sparing strategy for subsea components considering reliability data, lead times, availability and cost. This methodology can be utilized at any stage of an asset lifecycle, from design to operation and can be adjusted to reflect modifications throughout the life of field. Using commercially available RAM analysis software, Maros [2], a reliability block diagram (RBD) is constructed to represent the reliability structure and logic of the system being analyzed. Retrievable components, for which spares would be suitable, are then identified within the model to review and update the failure modes and reliability information for each component. Reliability information can be based on project specific data or from industry-wide sources such as OREDA. The RAM analysis software uses the Monte-Carlo simulation technique to determine availability. A sensitivity analysis is then performed to determine maximum availability while holding the minimum required stock level of spare components. A sparing priority factor (SPF) analysis is then performed in addition to the RAM sensitivity analysis to support those results and consider spare purchase, storage and preservation costs. The SPF gives a weighting to the storage cost against the potential impact on production. The SPF is a number used to determine a component’s need to have a spare. A high SPF indicates an increased requirement to hold a spare.

Cyplik, Piotr, and Lukasz Hadas. "Stock management ¿ a component of production planning model with simultaneous production of spare parts." In 2007 International Symposium on Logistics and Industrial Informatics. IEEE, 2007. http://dx.doi.org/10.1109/lindi.2007.4343504.

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Kader, Ba, Dellagi Sofiene, and Rezg Nidhal. "Green management of Spare parts for an integrated optimal maintenance and production policy." In 2014 IEEE International Conference on Automation Science and Engineering (CASE). IEEE, 2014. http://dx.doi.org/10.1109/coase.2014.6899351.

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Lamghari-Idrissi, Douniel, Daniel Soellaart, Rob Basten, and Nico Dellaert. "Influence of Spare Parts Service Measures on the Performance of Front-End Wafer Production Process." In 2019 Winter Simulation Conference (WSC). IEEE, 2019. http://dx.doi.org/10.1109/wsc40007.2019.9004919.

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Schwaiger, Johannes, Tim C. Lueth, and Franz Irlinger. "G-Code Generation for a New Printing Process Based on 3D Plastic Polymer Droplet Generation." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63152.

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Fabrication of plastic parts is an important scope of application for various branches of industry. This does not only concern manufacturing of end products but also production of sample parts in small lot sizes. Currently, most plastic parts are injection-molded. Consequently, it is first necessary to produce appropiate moldings, for example by milling of metal. This is very time-consuming on one hand and uneconomical concerning costs for production in small lot sizes on the other hand. Furthermore, the variety of forms is restricted considerably which is a clear disadvantage concerning the production of prototypes or spare parts. The use of a free-forming droplet generator for producing plastic parts can provide remedy. The patented principle of the printing process used in this approach is to produce droplets of liquified plastic in a preparation unit. Sequential discharge of these droplets builds a part in the installation space by solidifying of the droplets into balls. Since each 3D printing process needs its own data preprocessing, this article presents its fundamentals. STL data is used as input data and allows almost any kind of geometry. In general, a typical workflow for processing STL data is as follows: slicing volume data in order to gain contours that form 2D boarders, offsetting contours for a true to scale building process, filling of slices dependent on (offset) contours and generation of machine-code (g-code) that can be executed by the 3D printer in order to build an accurate and high-quality part. The model used in this approach is based on the droplets produced by the machine. A more detailed description of all the process-specific invidual steps from slicing up to g-code generation is presented within the scope of this paper. The continual development of custom-made algorithms based on process-specific models and parameters has resulted in the generation of g-code that could be executed on a 3D plastic polymer printer based on droplet generation for the first time. The resulting sample parts are very appealing. In conclusion, the results have shown that the whole production process can be a significant benefit especially for rapid prototyping of sample parts or spare parts.

Rezapour, Shabnam, Rahul Singh, Janet K. Allen, and Farrokh Mistree. "Stochastic Supply Networks Servicing Pre- and After-Sales Markets." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46749.

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In this paper, we consider a company including both a forward supply chain producing and supplying products to markets and an after-sales supply chain providing spare parts to fulfill after-sales commitments. Uncertainties in estimating product demand in the pre-markets, spare parts demands in the after-sales markets and qualified outputs of production facilities throughout these two chains are considered in this problem. Stochastic qualified output of production facilities are due to their imperfect productions systems. We show that uncertainties propagate and qualified flow depreciates by moving material, components and products from the upstream to the downstream of these supply chains and these phenomena should be quantified to determine the service levels of this company in the pre and after-sales markets. Reliable flows preserve chains’ service levels against uncertainties and their propagated effects. The consideration of the interactions of pre- and after-sales operations as concurrent planning of these two chains and considering both demand and supply side uncertainties and their propagated effects are the important contributions of this paper. Here, we propose a mathematical model for determining the best marketing strategies for this company (price, warranty length and service levels) and preserving reliable flow dynamics throughout the chains’ networks. The proposed model and its solution approach are tested using data from an engine production company. We derive some managerial insight by analyzing the correlations among the marketing strategies and how they affect each other.

Carlucci, Elisa, and Leonardo Tognarelli. "Preventive Maintenance and Spare Parts Management Optimization in Natural Gas Pipelines Operating Under Variable Conditions Across the Year." In ASME 2015 Power Conference collocated with the ASME 2015 9th International Conference on Energy Sustainability, the ASME 2015 13th International Conference on Fuel Cell Science, Engineering and Technology, and the ASME 2015 Nuclear Forum. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/power2015-49326.

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Pipeline architecture consists in several stations in series configuration; hence the unavailability of one station impacts the availability of the whole pipeline. This lead to the need of optimizing the availability of each station in terms of configuration and number of units required in order to be able of satisfying the demand at any time. The loss of production cost in gas supply application is very high. Aero-derivatives gas Turbines are typically used as drivers in pipeline applications since they maximize train efficiency, minimizing gas consumption. PGT25+ aero-derivative Gas Turbines are among the most popular units applied in pipeline services. They merge demonstrated reliability performances together with a very limited outage duration impact that leads to very high Availability. Outage duration is optimized through modular replacement of both GG and HSPT that is facilitated by light weight of the machine. A Reliability Block Diagram has been built with the aim to optimize the Pipeline PGT25+ Gas Generator scheduled maintenance. Each block represents a Gas Generator while each station is realized taking into account the actual k-out-of-N configuration of each station units. Once the model has been created, a sensitivity analysis has been performed in order to estimate the impact of the Gas Generator cycle time (Gas Generator refurbishment time),that is what if larger or shorter than the baseline 6 months. Further, even a sensitivity study has been carried on to estimate the impact of the number of available spare parts on the delay that some units will suffer due to un-sufficient number of GG spare with consequent higher risk.

Löfdahl, Jan-Olof. "35 Years of Operation With Rolls-Royce Marine Proteus Gas Turbines in Swedish Navy Fast Surface Attack Ships." In ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/98-gt-147.

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This paper covers 35 years of operation with the ROLLS-ROYCE Marine PROTEUS Gas Turbine in the Swedish Navy SPICA class Torpedo Boats and the NORRKÖPING class Missile Boats. 54 installed PROTEUS Gas Turbines in 18 boats have accumulated nearly 300 000 running hours. The service is intended to continue until year 2010. The paper describes: • Experience from operation. • Technical problems and their solutions. • Major modifications. • Life extension program. • Problem areas. • The future of the PROTEUS within Swedish Navy. The Swedish Navy operation of PROTEUS engines in fast surface attack ships is demanding and the environment is harsh. This causes great strain to the entire machinery. With the Gas Turbine Propulsion new Ship maneuvering technique had to be developed and adopted. Initial installation and engine problems had to be cured. Throughout the years several technical problems have turned up and been solved. The largest number or serious engine damages has been Power degradation and broken Compressor or burnt Turbine Blades and Vanes. Mainly as a result of a fouled Compressor, incorrect Bleed Valve setting or corrosion. Next largest engine problem has been vibration. In the early days engine related but nowadays generated by the installation or other equipment in the ship. All efforts laid down by involved personnel has greatly contributed to improve the reliability of the engine and its installation. New problems will certainly show up by age and changed operational procedures, thus calling for a continued improvement work. Spare parts accessibility will be the limiting factor for future PROTEUS operation. Therefore cooperation with ROLLS-ROYCE and the remaining operators in Spare Parts production and for exchange of Spare Parts is essential.

Evans, Matthew C., and Terry L. Schulz. "Westinghouse AP1000 Power Production Reliability Classification Methodology." In 17th International Conference on Nuclear Engineering. ASMEDC, 2009. http://dx.doi.org/10.1115/icone17-75865.

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The AP1000 is a pressurized water reactor with passive safety features and extensive plant simplifications that provide significant and measurable improvements in safety, construction, reliability, operation, maintenance and cost. The design of the AP1000 has incorporated a standardization approach, which results in a plant design that can be constructed in multiple geographical regions with varying regulatory standards and expectations. The AP1000 uses proven technology, which builds on over 30 years of operating PWR experience. In order to provide additional assurance that the AP1000 will meet its aggressive reliability and availability goals, Westinghouse has developed a Power Production Reliability Methodology. This methodology is used to identify structures, systems, and components (SSCs) that are important to reliable plant operation and applies appropriate procurement actions to these SSCs. Internationally, nuclear facilities have backfit equipment reliability processes in order to efficiently provide high levels of safe and reliable plant operation. These processes are characterized by the classification of SSCs based on the impact of component failure on plant operation. This classification is used to prioritize and simplify plant maintenance programs, optimize spare parts inventories, and improve component and system performance monitoring. The AP1000 Power Production Reliability Methodology has been developed to utilize compatible classification process to support the design and operation of domestic and international AP1000 plants. The implementation of this process has enabled Westinghouse to identify reliability-important SSCs during the design phase and to establish procurement requirements for these SSCs to be supplied for the AP1000. Plans are being developed to expand the use of the AP1000 Power Production Reliability Methodology to include requirements for storage, transport, construction, and startup testing. The ultimate goal of this process will be the establishment of a site equipment reliability program in accordance with the plant operator’s processes to support effective commercial operation. The execution of the AP1000 Power Production Reliability Methodology will provide an additional level of confidence that the AP1000 will meet the design reliability and availability goals for commercial operation.

Boutaous, M’hamed, Amir Msakni, Claire Barres, and Jean-Yves Charmeau. "Numerical Simulation of Polymers Powder Sintering Using Infrared Heating." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89900.

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Three-dimensional parts are produced by selectively sintering or melting a thin layer of plastic powder, one layer on top of the other one, by exposure with IR-light through a digitally printed optical mask. The process thus transfers 2D images into 3D parts by melting each layer in a single exposure. This makes the SMS process significantly faster and more cost-effective than traditional laser sintering, which sinters each layer in a point-by-point fashion. The speed of the SMS process makes it suitable for use throughout the entire product life cycle for plastic parts; from the first prototypes, through production of parts, and finally to “Spare parts on demand.” It is easily revealed that replacing the laser by the infrared as a heat source increases greatly the productivity. However, there is still research work to be done in the purpose of optimizing the process and better understand the thermal and physicochemical changes undergone in the powdered polymeric material. In this paper, a coupling between a 1D thermal model and a crystallization model will be done to predict the thermal behavior of the polymer during the sintering by infrared flashing in rapid prototyping process. After that, the model will be tested and confronted to the experimentally results using a new lab-scale IR-sintering machine which was constructed in this purpose.

Звіти організацій з теми "Spare Parts Production":

Roye, Thorsten. Unsettled Technology Areas in Deterministic Assembly Approaches for Industry 4.0. SAE International, August 2021. http://dx.doi.org/10.4271/epr2021018.

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Increased production rates and cost reduction are affecting manufacturing in all sectors of the mobility industry. One enabling methodology that could achieve these goals in the burgeoning “Industry 4.0” environment is the deterministic assembly (DA) approach. The DA approach is defined as an optimized assembly process; it always forms the same final structure and has a strong link to design-for-assembly and design-for-automation methodologies. It also looks at the whole supply chain, enabling drastic savings at the original equipment manufacturer (OEM) level by reducing recurring costs and lead time. Within Industry 4.0, DA will be required mainly for the aerospace and the space industry, but serves as an interesting approach for other industries assembling large and/or complex components. In its entirety, the DA approach connects an entire supply chain—from part manufacturing at an elementary level to an OEM’s final assembly line level. Addressing the whole process of aircraft design and manufacturing is necessary to develop further collaboration models between OEMs and the supply chain, including addressing the most pressing technology challenges. Since all parts aggregate at the OEM level, the OEM—as an integrator of all these single parts—needs special end-to-end methodologies to drastically decrease cost and lead time. This holistic approach can be considered in part design as well (in the design-for-automation and design-for-assembly philosophy). This allows for quicker assembly at the OEM level, such as “part-to-part” or “hole-to-hole” approaches, versus traditional, classical assembly methods like manual measurement or measurement-assisted assembly. In addition, it can increase flexibility regarding rate changes in production (such as those due to pandemic- or climate-related environmental challenges). The standardization and harmonization of these areas would help all industries and designers to have a deterministic approach with an end-to-end concept. Simulations can easily compare possible production and assembly steps with different impacts on local and global tolerances. Global measurement feedback needs high-accuracy turnkey solutions, which are very costly and inflexible. The goal of standardization would be to use Industry 4.0 feedback and features, as well as to define several building blocks of the DA approach as a one-way assembly (also known as one-up assembly, or “OUA”), false one-way assembly, “Jig-as-Master,” etc., up to the hole-to-hole assembly approach. The evolution of these assembly principles and the link to simulation approaches are undefined and unsolved domains; they are discussed in this report. They must be discussed in greater depth with aims of (first) clarifying the scope of the industry-wide alignment needs and (second) prioritizing the issues requiring standardization. NOTE: SAE EDGE™ Research Reports are intended to identify and illuminate key issues in emerging, but still unsettled, technologies of interest to the mobility industry. The goal of SAE EDGE™ Research Reports is to stimulate discussion and work in the hope of promoting and speeding resolution of identified issues. SAE EDGE™ Research Reports are not intended to resolve the challenges they identify or close any topic to further scrutiny.