اجازه ترخیص با انعطاف پذیری هدایت شده در ساخت تولید کارگاهی
|کد مقاله||سال انتشار||تعداد صفحات مقاله انگلیسی||ترجمه فارسی|
|18953||2005||16 صفحه PDF||سفارش دهید|
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Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)
Journal : Technovation, Volume 25, Issue 8, August 2005, Pages 815–830
Overview. The aim of releasing orders is to transfer jobs from the planning stage to the realization stage under consideration of economic objectives. In a job-shop with order driven production, this decision problem is characterized by time-related, open decision fields. In this context, a possible approach to solve this problem lies in considering flexibility as a decision criterion. This procedure also forms the basis of opportunistic coordination. Here, the basic idea is to utilize the inherent flexibility of a production system to compensate negative consequences of unexpected changes of the decision field. The aim of this article is to • examine the extent in which flexibility aspects are considered in relevant order release models • specify the principles of opportunistic coordination within the order release planning problem to achieve a flexibility-driven order release, and on this basis • develop the structure of a decision model to flexibility-driven order release.
نتیجه گیری انگلیسی
The order release in job-shop production is characterized by two interdependent sub problems: the ‘forming of order-specific factor combinations’ and the ‘selection of release dates for individual orders’. If time-related, open decision fields are assumed, then it is necessary to take all flexibility aspects into account as completely as possible. An analysis of relevant order release models for job-shop production in general and the order release in flexible manufacturing systems as a special form of job-shop production showed that, so far, flexibility aspects have not been considered well enough. On the one hand, given alternatives are neglected and on the other hand, if flexibility aspects are included, the flexibility of the planning process remains largely unconsidered. Given this background, a need of modification of the order release model resulted regarding the modeling of the action framework, as well as a need of expansion concerning the flexibility aspects of the planning process. For the flexibility-oriented design of the order release problem, here, the principles of opportunistic coordination were applied including a model formulation supporting the representation of the relevant problem characteristics. This may serve as a basis for solving real problems with respect to the capacity of currently available solution algorithms. The flexibility-oriented model can be characterized as a load-oriented, continuous, hyperopic order release considering potential operation/machine sequences only implicitly. It furthermore abstracts from the peculiarities of non-linear production plans because of the chosen aggregation level. Therefore, further studies on flexibility-oriented order releases will be pursued in the following directions: • Analysis of the possibilities for an explicit consideration of operation/machine sequences and a corresponding extension of the presented approach. • Analysis of a flexibility-oriented order release from the perspective of algorithmic solution approaches. • Benchmark of the presented approach with order release models in the scientific literature on the basis of simulations.