Field-synchronized Digital Twin framework for production scheduling with uncertainty
نویسندگان
چکیده
منابع مشابه
A Hierarchical Production Planning and Finite Scheduling Framework for Part Families in Flexible Job-shop (with a case study)
Tendency to optimization in last decades has resulted in creating multi-product manufacturing systems. Production planning in such systems is difficult, because optimal production volume that is calculated must be consistent with limitation of production system. Hence, integration has been proposed to decide about these problems concurrently. Main problem in integration is how we can relate pro...
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Acknowledgments Many people have helped me directly or indirectly to achieve this dissertation, making it better than it otherwise would have been. Thanks to Philippe Laborie for his guidance, insight, kindness, and availability. It has been very pleasant to work with him at ILOG. In particular, he has been of great help to implement algorithms. Thanks to Thierry Vidal for his constant support,...
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In this paper, production planning and scheduling problems are addressed through a hierarchical framework. The planning problem aggregates orders in the planning period and considers uncertainty utilizing a multi-stage stochastic programming formulation where three stages are considered with increasing level of uncertainty. The planning model includes material balances and time horizon constrai...
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We introduce a novel model for scheduling with explorable uncertainty. In this model, the processing time of a job can potentially be reduced (by an a priori unknown amount) by testing the job. Testing a job j takes one unit of time and may reduce its processing time from the given upper limit p̄j (which is the time taken to execute the job if it is not tested) to any value between 0 and p̄j . Th...
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Misinterpretation of uncertainty in the measurement of the electromagnetic field (EMF) strength may lead to an underestimation of exposure risk or an overestimation of required measurements. The Guide to the Expression of Uncertainty in Measurement (GUM) has internationally been adopted as a de facto standard for uncertainty assessment. However, analyses under such an approach commonly assume u...
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ژورنال
عنوان ژورنال: Journal of Intelligent Manufacturing
سال: 2020
ISSN: 0956-5515,1572-8145
DOI: 10.1007/s10845-020-01685-9