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Multi-fidelity simulation optimization method and equipment applied to workshop planned production

An optimization method and planning technology, applied in the field of multi-fidelity simulation optimization based on DBR theory, to achieve the effect of improving decision-making efficiency, strong consistency, and optimizing decision-making in discrete manufacturing industries

Active Publication Date: 2020-07-24
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0006] In view of the above defects or improvement needs of the prior art, the present invention provides a multi-fidelity simulation optimization method applied to workshop planning and production, and its purpose is to use the simulation optimization method based on multi-fidelity simulation model to optimize the production planning of workshop products , so as to solve the technical problem that the actual production workshop product launch plan is only formulated based on the experience of managers

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  • Multi-fidelity simulation optimization method and equipment applied to workshop planned production
  • Multi-fidelity simulation optimization method and equipment applied to workshop planned production
  • Multi-fidelity simulation optimization method and equipment applied to workshop planned production

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[0049] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0050] figure 1 It is a process frame diagram of a multi-fidelity simulation optimization method applied to workshop planning and production, which can be more specifically used in the manufacturing environment. The problem of workshop planning and production is described as follows: There are n workpieces to be processed in the workshop. Due to the limitation of workpiece delivery and works...

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Abstract

The invention belongs to the technical field of production control, and particularly relates to a multi-fidelity simulation optimization method and device applied to workshop planned production. According to the method, two fidelity-level simulation models are used in cooperation to optimize a workshop planned production problem: firstly, a high-fidelity simulation model and a low-fidelity simulation model are established according to an actual production system; then searching a solution space of the production plan problem by using a low-fidelity simulation model in combination with optimization iterative characteristics of a GA algorithm; sampling by using a sampling method with ordinal number transformation and optimal sampling according to a result obtained by running the low-fidelitymodel to obtain an optimal sampling set; finally, the optimal sampling set is operated through the high-fidelity simulation model, due to the fact that the similarity between the high-fidelity modeland a workshop actual production system is extremely high, a relatively accurate result can be obtained by using the high-fidelity model to operate the production scheme in the optimal sampling set, and therefore the result can serve as the basis to select the optimal production scheme.

Description

technical field [0001] The invention belongs to the field of production control, and relates to a multi-fidelity simulation optimization method and equipment applied to workshop planning and commissioning, more specifically, to a multi-fidelity simulation optimization method based on DBR theory and applying to workshop planning and commissioning. Background technique [0002] Making a reasonable production plan can make the workshop process smoother and make full use of workshop resources. Taking the production planning problem of the workshop as an example, an inappropriate workpiece production plan may lead to processing blockage in the workshop or a large number of idle machines. Therefore, optimizing the production planning of the workshop can improve processing efficiency. Due to the irreversibility of the production process of the production system, workshop managers often use simulation methods to judge the feasibility of the scheme before implementing production deci...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/04G06N3/12
CPCG06Q10/04G06Q10/067G06Q50/04G06N3/126Y02P90/30
Inventor 岳磊管在林张正敏王创剑周洋田亚娟
Owner HUAZHONG UNIV OF SCI & TECH
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