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A mixed dispatching rule approach in FMS scheduling
Springer Science and Business Media LLC - Tập 6 - Trang 69-87 - 1994
Nobuaki Ishii, Joseph J. Talavage
Short-term scheduling in flexible manufacturing systems (FMSs) is a difficult problem because of the complexities and dynamic behavior of FMSs. To solve this problem, a dispatching rule approach is widely used. In this approach, however, a single dispatching rule is usually assigned for all machines in a system during a given scheduling interval. In this paper, a mixed dispatching rule which can a...... hiện toàn bộ
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
Direct and Indirect Effects of Product Mix Characteristics on Capacity Management Decisions and Operating Performance
Springer Science and Business Media LLC - Tập 13 - Trang 241-265 - 2001
Shannon W. Anderson
Studies of the performance effects of product mix complexity typically treat plant capacity utilization and machine scheduling (for example, setup frequency) as exogenous factors associated with technology choices, economies of scale, and the level of market demand. However, capacity utilization and machine scheduling also reflect tactical operating decisions taken by local managers to maximize sh...... 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
Manufacturing Cost Modeling for Product Design
Springer Science and Business Media LLC - Tập 12 - Trang 207-217 - 2000
Angela Locascio
The process of product design is driven toward achieving design specifications while meeting cost targets. Designers typically have models and tools to aid in functional and performance analysis of the design but few tools and little quantitative information to aid in cost analysis. Estimates of the cost of manufacture often are made through a cost multiplier based on material cost. Manufacturing ...... 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
Optimal door fitting with systematic fixture adjustment
Springer Science and Business Media LLC - Tập 6 - Trang 99-121 - 1994
Shing-Kuo Wu, S. Jack Hu, S. M. Wu
A systematic approach is presented to obtain the best door gap quality through optimal door fitting in automobile body manufacturing. First, three indexes of gap quality are defined; they are: (1) door gap width deviation relative to design nominal; (2) door gap parallelism; and (3) car-to-car gap consistency. Then the door-fitting problem is formulated into a general constrained optimization prob...... hiện toàn bộ
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