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Inequalities for stochastic flow shops and job shops [PDF]
Applied Stochastic Models and Data Analysis, 1986 AbstractConsider an m‐machine flow shop with n jobs. The processing time of job j, j = 1,…, n, on each one of the m machines is equal to the random variable Xj and is distributed according to Fj. We show that, under certain conditions, more homogeneous distributions F1,…, Fn result in a smaller expected makespan.
Michael Pinedo, Sung-Hwan Wie
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, 1996 Once the management requirements planning (MRP) system has projected a plan, the remaining task is to execute the plan. Through proper consideration of capacity, the evolving plan may be doable, but “doing it”—the execution— can be most challenging, especially in a job-shop environment. MRP was developed as a tool to assist in the complicated dependent
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2008
This chapter deals with multi operation models that are different from the flow shop models discussed in the previous chapter. In a flow shop model all jobs follow the same route. When the routes are fixed, but not necessarily the same for each job, the model is called a job shop. If a job in a job shop has to visit certain machines more than once, the
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This chapter deals with multi operation models that are different from the flow shop models discussed in the previous chapter. In a flow shop model all jobs follow the same route. When the routes are fixed, but not necessarily the same for each job, the model is called a job shop. If a job in a job shop has to visit certain machines more than once, the
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Scheduling the General Job-Shop
Management Science, 1985A family of algorithms is described for finding optimum schedules for job-shops. The algorithms are of a branch and bound type but have a complete schedule associated with each node of the search tree. Branching from nodes is based on important conflicts in the schedule. Some results are provided.
Jeffrey R. Barker, Graham B. McMahon
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Flow Shops, Job Shops and Open Shops (Stochastic)
2008The results for stochastic flow shops, job shops, and open shops are somewhat less extensive than those for their deterministic counterparts.
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Scheduling job shops with delays
Proceedings. 1987 IEEE International Conference on Robotics and Automation, 1991In this paper, the presence of delay in a job shop is addressed. We show that delay is an important consideration in many manufacturing systems that are modeled as continuous flow processes. A scheduling policy for a job shop with delays is then derived using theoretical arguments and heuristics.
Stanley B. Gershwin +2 more
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The Quarterly Journal of Economics, 1978
I. Introduction, 261.—II. The basic model—risk neutrality, 262.—III. Mobility cost, 268.—IV. Education, 270.—V. Extensions of the basic model, 272.—VI. Empirical applications, 274.
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I. Introduction, 261.—II. The basic model—risk neutrality, 262.—III. Mobility cost, 268.—IV. Education, 270.—V. Extensions of the basic model, 272.—VI. Empirical applications, 274.
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Simulation of a Simplified Job Shop
Management Science, 1960This is a report of the results of some digital computer simulation studies of a simplified model of a job shop production process. Such factors as the average effectiveness of schedules under the impact of random variations in processing times and the effect of changing operating policies are considered.
C. T. Baker, B. P. Dzielinski
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, 1999 Within the great variety of production scheduling problems that exist, the job shop scheduling problem (JSP) is one that has generated the largest number of studies. It has also earned a reputation for being notoriously difficult to solve. Nevertheless, the JSP illustrates at least some of the demands imposed by a wide array of real world scheduling ...
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A mean value analysis model for job shops and job shop-like systems
Computers & Industrial Engineering, 1989Abstract We apply mean value analysis to determine some congestion measures (mean queue-length, mean flow time, expected throughput) of job shop-like systems such as the flexible manufacturing system (FMS). Computational aspects of the model are discussed.
H. C. Co, G. Li
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