Search results
1 – 10 of over 164000Yasuhiro Hirakawa, Kyoji Hoshino and Hiroshi Katayama
Recently, it has been recognized that production control systemsfor multi‐stage manufacturing processes can be classified into push‐typeand pull‐type systems. The push‐type systems…
Abstract
Recently, it has been recognized that production control systems for multi‐stage manufacturing processes can be classified into push‐type and pull‐type systems. The push‐type systems are commonly defined as those types of materials requirements planning system which utilize the forecast of demands. The pull‐type systems, on the other hand, are those where order quantities are determined on the basis of real demand. Describes a hybrid push/pull production control system, operated periodically, which combines the benefits of both systems. Discusses theoretical arguments in support of this system and numerical studies are shown to give insight into the system′s performance. Hybrid push/pull‐type systems can attain a higher degree of effectiveness if they are appropriately operated.
Details
Keywords
Production systems are becoming more and more information intensive activities. Production management is faced with new challenges which demand an overall information approach to…
Abstract
Production systems are becoming more and more information intensive activities. Production management is faced with new challenges which demand an overall information approach to production information systems planning. However, production systems are not all alike. Each system presents different information implications for system selection and operation. An information systems view of production information systems is offered. The analysis is based on principles central to systems thinking in general, with specific reference to production systems. Various such systems, including hierarchical, MRP, JIT, OPT and FMS, are then examined from a major aspect of systems design, the concept of system guarantors. Each of these systems has proved successful in certain production environments. However, from an information systems point of view, the question is not always one of net return or claims of increased productivity, but rather who or what will in the final analysis guarantee the system's results.
Details
Keywords
Julia V. Ragulina and Alexander A. Chursin
To address management issues in the development of flexible production systems in the enterprises of knowledge-intensive industries, this chapter considers four basic approaches…
Abstract
To address management issues in the development of flexible production systems in the enterprises of knowledge-intensive industries, this chapter considers four basic approaches to planning production processes. Based on these approaches, the methodology of the agent-based approach, which satisfies the fundamental requirements of today's production systems, is formulated, with much attention paid to the rules of dispatching as a key tool of operational control over the production plan and its implementation. The advantage of simulation-based approaches is that they can dynamically adjust the ongoing integration of planning, depending on the state of flexible production systems, in the use of combined approaches and methods of management of production processes.
Details
Keywords
Production is defined as the mission of creating wealth (economic goods and services) from a variety of resources (human and non‐ human) by adding values (intrinsic and extrinsic…
Abstract
Production is defined as the mission of creating wealth (economic goods and services) from a variety of resources (human and non‐ human) by adding values (intrinsic and extrinsic) through transformation (physical and conceptual) so as to derive utilities (form, place, time, economic, non‐economic). This mission is organised through a system. Basically, what a production system looks like is as Fig.1. It is basically the flow of various resources that defines the nature and characteristic of the production system.
The purpose of this paper is to provide a report of the world first robotized cellular production system developed by IDEC Corporation.
Abstract
Purpose
The purpose of this paper is to provide a report of the world first robotized cellular production system developed by IDEC Corporation.
Design/methodology/approach
The work is based on an interview with the development team of IDEC Corporation.
Findings
The paper finds that the IDEC system is a success that paved a way to the future automated cellular production system that enables high‐mix, low‐volume production.
Practical implications
The paper provides an up‐to‐date insight into how to automate high‐mix low‐volume production.
Originality/value
The paper elaborates how a robotized cellular production system is realized.
Details
Keywords
Anna Burduk and Edward Chlebus
To show necessity of risk evaluation during modelling and simulation of production systems. To show an approach to risk evaluation of manufacturing system which has serial…
Abstract
Purpose
To show necessity of risk evaluation during modelling and simulation of production systems. To show an approach to risk evaluation of manufacturing system which has serial reliability structure.
Design/methodology/approach
Modelling and simulation of a manufacturing system allows one to conduct verification of different solutions in the area of production planning, before they are started. This is impossible with traditional methods.
Findings
Reliable results of simulation research can be obtained only if they are based on an integrated model of the company, that covers all components of the manufacturing process including also its organization and risk in production processes.
Practical implications
The paper describes the stages and results of a project carried out in 2002 in an international company. The proposed method of risk evaluation may be helpful to determine the risk level in the chosen production line and eventually for the whole enterprise manufacturing systems.
Originality/value
The risk concept was treated as a synonym of unreliability. This kind of approach enabled decomposition of the production system into several areas and determination of the reliability structure.
Details
Keywords
A management system which has been used in Japan's Toyota Motor Company for many years is described. The system is applicable to the assembled goods industry and is widely used in…
Abstract
A management system which has been used in Japan's Toyota Motor Company for many years is described. The system is applicable to the assembled goods industry and is widely used in such circumstances in that country. It extends well beyond production and inventory control and incorporates a number of features of a decidedly Japanese nature. Dominant among these is just‐in‐time production which is examined at some length. Also described is Kanban, and several of its elements, which is an essential aspect of just‐in‐time production.
Details
Keywords
There has been much discussion on the merits of differentproduction control philosophies, particularly MRPII, OPT and JIT. Aconsensus is emerging that these philosophies are not…
Abstract
There has been much discussion on the merits of different production control philosophies, particularly MRPII, OPT and JIT. A consensus is emerging that these philosophies are not mutually exclusive, and some companies are beginning to mix and match different approaches to meet their particular needs. The design of hybrid production control systems requires the establishment of a theory of production control that embraces, but is independent of, the well‐defined philosophies of MRPII, OPT and JIT. Without such an understanding of production control there is no framework within which to build hybrid production control systems. Five universal principles of production control are set out, and it is shown how these principles can be used to construct the Integrated Production Control (IPC) Model. This model provides the conceptual framework necessary for the design of hybrid production control systems. The relationships of MRPII, OPT, and kanban, the classical JIT scheduling system, are explored, and areas of strength and weakness identified.
Details
Keywords
Computer production management systems are far more common thanthey were even five years ago, as a result of reductions in the costs ofcomputer hardware and the growing use of…
Abstract
Computer production management systems are far more common than they were even five years ago, as a result of reductions in the costs of computer hardware and the growing use of package software by both large and small firms. However, there are still many problems associated with such computer systems. Though the symptoms are somewhat different depending on whether we are concerned with large or small companies, the root cause is the same: a lack of any clear philosophy of what production management systems do and how they should be designed. In addition companies face a need to integrate hardware from many different suppliers and the ability to do this would also be helpful to smaller firms. At the moment such integration is difficult to carry out.
Details
Keywords
R. Calabria, G. Pulcini and M. Rapone
The technological level achieved by manufacturing systems in recent years has caused an exponential enlargement of problems to be faced by management, such as cost minimisation…
Abstract
The technological level achieved by manufacturing systems in recent years has caused an exponential enlargement of problems to be faced by management, such as cost minimisation, reliability and maintainability allocation, diagnostic system design. A newly developed model for assessing the impact of failures of equipment (subject to multiple repair modes) on system production capability is presented. It is based on the numerical simulation of delay times in the production flow and enables the analyst to consider alternative and realistic policies of failure management, different starting periods and ending procedures of a finite production phase. Some examples of series manufacturing systems, with and without buffer, are analysed and sensitivity analyses are performed to assess the influence of variations of reliability and/or maintainability characteristics of the equipment on the system performances.
Details