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Modular synthesis of Petri nets for modeling flexible manufacturing systems
Springer Science and Business Media LLC - Tập 7 - Trang 287-310 - 1995
Mu Der Jeng
This paper proposes a modular Petri net synthesis method for modeling flexible manufacturing systems based on synchronization among control processes of the manufacturing resources (such as robots and machines). In the method, the target system is modeled in a bottom-up and uniform manner by first describing the system's control processes using strongly connected state machines (SCSMs) as the basi...... hiện toàn bộ
Process Monitoring Strategies for Surface Mount Manufacturing Processes
Springer Science and Business Media LLC - Tập 15 - Trang 95-112 - 2003
Siong-Lin Ho, Min Xie, Thong-Ngee Goh
Establishing reliable surface mount assemblies requires robust design and assembly practices, including stringent process control schemes for achieving high yield processes and high quality solder interconnects. Conventional Shewhart-based process control charts prevalent in today's complex surface mount manufacturing processes are found to be inadequate as a result of autocorrelation, high false ...... hiện toàn bộ
A review of some issues and identification of some barriers in the implementation of FMS
Springer Science and Business Media LLC - Tập 19 - Trang 1-40 - 2007
Tilak Raj, Ravi Shankar, Mohammed Suhaib
Global competition, advancements in technology and ever changing customers’ demand have made the manufacturing companies to realize the importance of flexible manufacturing systems (FMS). These organizations are looking at FMS as a viable alternative to enhance their competitive edge. But, implementation of this universally accepted and challenging technology is not an easy task. A large number of...... hiện toàn bộ
Batch sizes and lead-time performance in flexible manufacturing systems
Springer Science and Business Media LLC - Tập 8 - Trang 5-21 - 1996
Harvey H. Millar, Tao Yang
Production lead-time performance in flexible manufacturing systems is influenced by several factors which include: machine groupings, demand rates, machine processing rates, product batching, material handling system capacity, and so on. Hence, control of lead-time performance can be affected through the manipulation of one or more of these variables. In this article, we investigate the potential ...... hiện toàn bộ
Contributing Authors
Springer Science and Business Media LLC - Tập 15 - Trang 273-274 - 2003
Business Process Reengineering and Flexibility: A Case for Unification
Springer Science and Business Media LLC - Tập 14 - Trang 73-86 - 2002
Guy Fitzgerald, Feroz A. Siddiqui
Business process reengineering (BPR) offers a radical approach to improving the performance of an organization. However, although there have been successes BPR is recognized as a high-risk activity, prone to failure. There are a variety of reasons for this and this paper highlights one which is argued to be the lack of attention that BPR pays to flexibility and its inability to cope with a changin...... hiện toàn bộ
A Heuristic Search Approach Using Approximate Solutions to Petri Net State Equations for Scheduling Flexible Manufacturing Systems
Springer Science and Business Media LLC - Tập 10 - Trang 139-162 - 1998
Mu Der Jeng, Shih Chang Chen
This paper proposes a new heuristic search approach based on an analytic theory of the Petri net state equations for scheduling flexible manufacturing systems (FMSs) with the goal of minimizing makespan. The proposed method models an FMS using a timed Petri net and exploits approximate solutions of the net's state equation to predict the total cost (makespan) from the initial state through the cur...... hiện toàn bộ
Phương Pháp ANOVA cho Phân Tích Thành Phần Phương Sai và Chẩn Đoán trong Quy Trình Sản Xuất Theo Lô Dịch bởi AI
Springer Science and Business Media LLC - Tập 15 - Trang 167-186 - 2003
Jionghua Jin, Huairui Guo
Trong các quy trình sản xuất theo lô, tổng biến động của quy trình thường được phân thành biến động giữa các lô và biến động trong từng lô. Bởi vì các thành phần biến động khác nhau có thể được gây ra bởi các nguồn khác nhau, việc phân tách, kiểm tra và ước lượng mỗi thành phần phương sai là rất cần thiết cho việc cải tiến quy trình. Hầu hết các nghiên cứu về kiểm soát quá trình (SPC) trước đây tậ...... hiện toàn bộ
#phương pháp ANOVA #sản xuất theo lô #biến động quy trình #phương sai #chẩn đoán nguyên nhân
A Loop Material Flow System Design for Automated Guided Vehicles
Springer Science and Business Media LLC - Tập 13 - Trang 33-48 - 2001
Ardavan Asef-Vaziri, Maged Dessouky, Chelliah Sriskandarajah
We develop an exact integer programming formulation to design a loop material flow system for unit-load automated guided vehicles. The model simultaneously determines both the design of the unidirectional loop flow pattern and the location of the pickup and delivery stations. The objective is to minimize the total loaded-vehicle trip distances. To solve the problem, we concentrate on developing a ...... hiện toàn bộ
The measurement of flexibility in manufacturing systems
Springer Science and Business Media LLC - Tập 8 - Trang 67-93 - 1996
Sanchoy K. Das
This article provides a theoretical basis for measuring the flexibility of manufacturing systems. The concept of multiple levels of measures (necessary, capability, actual, inflexibility, and optimality) for each flexibility type is introduced. Capability and actual measures are then developed for machine, routing, process, product, and volume flexibilities. For each of these flexibility types, a ...... hiện toàn bộ
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