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Engineering Costs and Production Economics最新文献

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Investing in reducing lead-time randomness in continuous-review inventory models 投资于减少持续审查库存模型的交货期随机性
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90032-W
Yigal Gerchak, Mahmut Parlar
{"title":"Investing in reducing lead-time randomness in continuous-review inventory models","authors":"Yigal Gerchak,&nbsp;Mahmut Parlar","doi":"10.1016/0167-188X(91)90032-W","DOIUrl":"10.1016/0167-188X(91)90032-W","url":null,"abstract":"<div><p>We consider the selection of optimal lead time variability in continuous review inventory models. The variability level is optimized jointly with the lot size and reorder point, where lower variability can be achieved at an extra cost. Low variabilities may correspond to more reliable sources or production processes, and their attainment is one of the implicit goals of JIT logistics. We analyze the resulting tri-variate models, providing sufficient conditions for joint convexity, and hence unique optimum, an algorithm and illustrative examples.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 2","pages":"Pages 191-197"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90032-W","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75188026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 35
Experiences of different approaches in logistics 具有不同物流方法的经验
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90029-2
Eero Eloranta, Ari-Pekka Hameri, Kimmo Lähteenmäki
{"title":"Experiences of different approaches in logistics","authors":"Eero Eloranta,&nbsp;Ari-Pekka Hameri,&nbsp;Kimmo Lähteenmäki","doi":"10.1016/0167-188X(91)90029-2","DOIUrl":"10.1016/0167-188X(91)90029-2","url":null,"abstract":"<div><p>This paper focuses on the problems of logistics from several viewpoints relevant in practice. Empirical observations are extracted from different branches of industry. Based on these observations we classify a set of approaches. We consider that an appropriate approach in future is the integrated paradigm having a basis on traditional industrial engineering discipline supported by information, communication and calculational technologies. This paper is associated with an ongoing Esprit II project 2277-CMSO (CIM for Multisupplier Operations).</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 2","pages":"Pages 155-169"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90029-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89335185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Real-time part sequencing in a flexible assembly cell: system development and evaluation 柔性装配单元中的实时零件排序:系统开发与评价
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90026-X
S.M.A. Suliman, A.M. El-Tamimi, D.F. Williams
{"title":"Real-time part sequencing in a flexible assembly cell: system development and evaluation","authors":"S.M.A. Suliman,&nbsp;A.M. El-Tamimi,&nbsp;D.F. Williams","doi":"10.1016/0167-188X(91)90026-X","DOIUrl":"https://doi.org/10.1016/0167-188X(91)90026-X","url":null,"abstract":"<div><p>This paper considers the development of a general part sequencing methodology which suits flexible systems. A flexible assembly cell configuration is conceptualized. The cell is characterized by a common buffer and a single flexible transfer device for inter-cell transfer activities. Since the time available for decision making on part sequencing is very short, a fast solution is required. A real-time computerized part sequencing system of modular structure is developed. The system comprises three functions: ENTER, ALLOCATE, and TRANSFER SEQUENCE. Each function is provided with various priority options to satisfy different company strategies. Computer simulation is used to compare alternative sequencing structures of the system developed, and to examine its effectiveness under different operating conditions with reference to cell performance and time response.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 2","pages":"Pages 117-131"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90026-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90003413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Dairy of events 事件日记
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90033-X
{"title":"Dairy of events","authors":"","doi":"10.1016/0167-188X(91)90033-X","DOIUrl":"https://doi.org/10.1016/0167-188X(91)90033-X","url":null,"abstract":"","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 2","pages":"Pages 199-201"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90033-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91639690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Real-time part sequencing in a flexible assembly cell : system development and evaluation 柔性装配单元中的实时零件排序:系统开发与评价
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90026-X
S. Suliman, A. El-Tamimi, D. Williams
{"title":"Real-time part sequencing in a flexible assembly cell : system development and evaluation","authors":"S. Suliman, A. El-Tamimi, D. Williams","doi":"10.1016/0167-188X(91)90026-X","DOIUrl":"https://doi.org/10.1016/0167-188X(91)90026-X","url":null,"abstract":"","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"18 1","pages":"117-131"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75734159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Mathematical modeling of the AGVS capacity requirements planning problem AGVS容量需求规划问题的数学建模
Engineering Costs and Production Economics Pub Date : 1991-05-01 DOI: 10.1016/0167-188X(91)90030-6
R.G. Kasilingam
{"title":"Mathematical modeling of the AGVS capacity requirements planning problem","authors":"R.G. Kasilingam","doi":"10.1016/0167-188X(91)90030-6","DOIUrl":"https://doi.org/10.1016/0167-188X(91)90030-6","url":null,"abstract":"<div><p>Determing the number and type of AGVs and the assignment of AGVs to transport parts between workstations is an important problem encountered in the design of an Automated Guided Vehicle System (AGVS). In this paper, an optimization model is proposed to solve this problem. The model minimizes the overall system cost defined as the sum of the annualized cost of operating the AGVs and the cost of transporting parts between workstations. The model is illustrated using a numerical example.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 2","pages":"Pages 171-175"},"PeriodicalIF":0.0,"publicationDate":"1991-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90030-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91604575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 23
Strategies in spare parts management using a reliability engineering approach 基于可靠性工程方法的备件管理策略
Engineering Costs and Production Economics Pub Date : 1991-02-01 DOI: 10.1016/0167-188X(91)90018-W
Anwar K. Sheikh, Frank L. Callom, Salim G. Mustafa
{"title":"Strategies in spare parts management using a reliability engineering approach","authors":"Anwar K. Sheikh,&nbsp;Frank L. Callom,&nbsp;Salim G. Mustafa","doi":"10.1016/0167-188X(91)90018-W","DOIUrl":"10.1016/0167-188X(91)90018-W","url":null,"abstract":"<div><p>Maintenance in a process industry, such as chemical and oil companies and food processing, needs frequent part replacements to assure continued operations. These parts represent non-repairable items which are best purchased, such as bearings and gaskets. Based on limited information on the time between failures of such systems, one can forecast the need for spare parts for a given planning horizon, which may be from one to several years. In this paper we discuss the methodology to calculate the spare part requirements for non-repairable systems and purchasing strategies for these parts. These strategies are based on a stochastic characterization of the time between failures of the system. The inventory level to be maintained will depend upon the need of such parts in consecutive time intervals or inventory cycles to satisfy the maintenance requirements with an acceptable risk level.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 1","pages":"Pages 51-57"},"PeriodicalIF":0.0,"publicationDate":"1991-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90018-W","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75360550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Minimizing production costs for a robotic assembly system 最小化机器人装配系统的生产成本
Engineering Costs and Production Economics Pub Date : 1991-02-01 DOI: 10.1016/0167-188X(91)90021-S
Maged M. Dessouky, James R. Wilson
{"title":"Minimizing production costs for a robotic assembly system","authors":"Maged M. Dessouky,&nbsp;James R. Wilson","doi":"10.1016/0167-188X(91)90021-S","DOIUrl":"10.1016/0167-188X(91)90021-S","url":null,"abstract":"<div><p>The objective of this study is to minimize the expected present worth of the production costs incurred over the operational life of a robotic assembly system that is integrated with an Automatic Storage/Retrieval System (AS/RS). Production costs include inventory cost and capital cost of equipment. Inventory cost consists of ordering, holding, and lostproduction costs; and all of these costs depend on the scheduling policy for the assembly robots as well as the inventory policy for the AS/RS. Capital cost of equipment depends on the number of depalletizer robots and the number of assembly robots. To identify the minimum-cost design for a certain automotive assembly operation from a given set of alternative system configurations, we present a simulation experiment in which independent replications of each alternative are controlled by a statistical ranking-and-selection procedure that has been adapted to simulation.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 1","pages":"Pages 81-92"},"PeriodicalIF":0.0,"publicationDate":"1991-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90021-S","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81486921","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
An algorithm for the N/M/parallel/Cmaxpreemptive due-date scheduling problem 一种N/M/并行/ cmax抢占的到期日期调度算法
Engineering Costs and Production Economics Pub Date : 1991-02-01 DOI: 10.1016/0167-188X(91)90017-V
T.C.E. Cheng, C.C.S. Sin
{"title":"An algorithm for the N/M/parallel/Cmaxpreemptive due-date scheduling problem","authors":"T.C.E. Cheng,&nbsp;C.C.S. Sin","doi":"10.1016/0167-188X(91)90017-V","DOIUrl":"10.1016/0167-188X(91)90017-V","url":null,"abstract":"<div><p>In this paper we consider the problem of scheduling <em>n</em> independent jobs on <em>m</em> parallel and identical machines with preemptions. The objective is to minimize the maximum job completion time (or makespan) while meeting all job due-dates. We present an algorithm which is able to generate a due-date schedule, if one exists, and to find the minimum makespan. We also discuss the relevance of the number of job preemptions as a performance measure for the class of parallel-machine scheduling problems. Finally, we identify some potential areas worthy of further research.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 1","pages":"Pages 43-49"},"PeriodicalIF":0.0,"publicationDate":"1991-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90017-V","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76788441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Reduction of manufacturing lead-time through selection of machining rate and unit handling size 通过选择加工速率和单元搬运尺寸来减少制造交货时间
Engineering Costs and Production Economics Pub Date : 1991-02-01 DOI: 10.1016/0167-188X(91)90015-T
Pius J. Egbelu
{"title":"Reduction of manufacturing lead-time through selection of machining rate and unit handling size","authors":"Pius J. Egbelu","doi":"10.1016/0167-188X(91)90015-T","DOIUrl":"10.1016/0167-188X(91)90015-T","url":null,"abstract":"<div><p>When parts are on the shop floor and in manufacture, they are either waiting for or are being attended by a machine or a material handling equipment. When several workstations are required to process a job, the machining and moving of the parts between the workstations can be very time consuming unless it is properly planned. When poorly planned, the processing and handling decision can significantly affect the length of time the job spends in the shop. In this paper, a methodology for planning the machining and the material handling activities for the manufacture of small to medium size batches in a job shop is presented. The model determines the machining rate at each workstation and the unit-load size to use in handling the batch through the production system in order to minimize the total production time. The procedure is easy to implement on a microcomputer for use in planning shop production activities.</p></div>","PeriodicalId":100476,"journal":{"name":"Engineering Costs and Production Economics","volume":"21 1","pages":"Pages 21-34"},"PeriodicalIF":0.0,"publicationDate":"1991-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0167-188X(91)90015-T","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75831820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
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