摘要:

Flexible Manufacturing Systems represent a significant investment and their introduction involves a major project for a company. This paper refers to the introduction of FMS in a company. It discusses various management aspects of the project, and its main subject is the simulation modelling of the system. The objectives of the simulation studies are given and the model described. Results are given and commented on, whereby certain capacity limitations were identified. As a result of the studies, weaknesses in the supplier's control software were highlighted and modifications made.

ISSN:0020-7543    

DOI:10.1080/00207548408942510

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

In a recent article, Miyazaki described a combined system for setting due dates and sequencing jobs in order to reduce tardiness in a job shop. This paper interprets the major features of that system in the context of current research and suggests improvements in both components of the system.

ISSN:0020-7543    

DOI:10.1080/00207548408942511

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

A recent work obtained closed-form solutions to the.problem of optimally grouping a multi-item inventory into subgroups with a common order cycle per group, when the distribution by value of the inventory could be described by a Pareto function. This paper studies the sensitivity of the optimal subgroup boundaries so obtained. Closed-form expressions have been developed to find intervals for the subgroup boundaries for any given level of suboptimality. Graphs have been provided to aid the user in selecting a cost-effective level of aggregation and choosing appropriate subgroup boundaries for a whole range of inventory distributions. The results of sensitivity analyses demonstrate the availability of flexibility in the partition boundaries and the cost-effectiveness of any stock control system through three groups, and thus also provide a theoretical support to the intuitive ABC system of classifying the items.

ISSN:0020-7543    

DOI:10.1080/00207548408942512

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

This paper discusses the problem of machine-component cell formation in group technology. Many approaches reported in this area, after Burbidge's pioneering work in production flow analysis, make use of the similarity coefficient of the additive type. This paper presents a heuristic approach based on the similarity coefficient of the product type. The proposed method has also been tested by using the similarity coefficient of additive type. For a large number of problems tested, the method yields a minimum number of exceptional elements. The method is computationally straightforward and is explained through a flowchart.

ISSN:0020-7543    

DOI:10.1080/00207548408942513

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

The major contribution of this paper is to provide a synthesis of the capital budgeting problems when dealing with advanced automation projects. First, we identify and formexpectationsof the future cash flows while paying particular attention to the indirect, non-pecuniary effects. Second we use tools from modern finance-theory, such as the Capital Asset Pricing Model, to evaluate the riskiness of the component cash flows and arrive at a set of appropriate discount-rates. This prescription is intended to reduce managerial subjectivity in the decision to invest in such projects.

ISSN:0020-7543    

DOI:10.1080/00207548408942514

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

This is the second of two papers. It describes a macroproduction function which follows on from the microproduction model described in the first paper. The macroproduction model is a general management appreciation of the production function. A set of perspectives is integrated to define structural stability. The basic assumption is a relationship between the flow of work and the flow of money, leading towards a ‘first and second law of production dynamics’. The overall production function is defined in terms of levels of structure and structural stability.

ISSN:0020-7543    

DOI:10.1080/00207548408942515

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

This paper reports the results of a survey of the use and place of industrial engineering techniques in 29 manufacturing establishments in the light engineering, electronics, garment, and scientific equipment sectors of Hong Kong industry. The results are compared with those of similar surveys in Europe and North America. The conclusions are that the number and use of industrial engineering techniques and their place in the organization of manufacturing industry in the newly industrialized city-state of Hong Kong is comparable with that found some seven to ten years previously in the U.S.A. and Europe.

ISSN:0020-7543    

DOI:10.1080/00207548408942516

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

Uncertainty in MRP systems does exist in several forms, variability in demand from period to period, uncertainty in the supply from stage to stage due to the variability in the yields from each production batch, and uncertainty in the lead times. The goals of the paper are to develop theoretical models for determining optimal decisions in this uncertain environment, to develop a computationally tractable heuristic and to examine how safety stock and safety time can arise. Finally, our methodology is compared with MRP practice.

ISSN:0020-7543    

DOI:10.1080/00207548408942517

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

Performance of an approximation to continuous review (s,S) inventory policies under constant lead time, full backlogging, compound renewal demand, and a linear cost structure is examined. The approximations are based on a lower bound for the optimal order-up-to level and the corresponding best reorder point. It is shown that the approximate policy is unique and that it performs better under relatively higher shortage costs, longer lead times, and lower set-up costs. Both exact and approximate policies are computed and the corresponding objective function values are compared under a large number of different parameter settings. The average relative approximation error is found to be 2·23% with a 27-fold average reduction in computing times.

ISSN:0020-7543    

DOI:10.1080/00207548408942518

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor

摘要:

This paper attempts to describe quality assurance systems by an analytical hierarchical model and deals with the internal and external factors affecting the proper functioning of these systems.

ISSN:0020-7543    

DOI:10.1080/00207548408942519

出版商:Taylor & Francis Group    

年代:1984

数据来源: Taylor