Discrete manufacturing-oriented dynamic integrated workshop scheduling and assembly sequence planning method

Abstract

The invention discloses a discrete manufacturing-oriented dynamic integrated workshop scheduling and assembly sequence planning method, which comprises the following steps of S1, establishing an optimization objective function and constraint conditions according to a discrete manufacturing-oriented dynamic integrated workshop scheduling and assembly sequence planning problem, S2, in combination with a rolling window technology, providing two scheduling strategies of backward rescheduling and complete rescheduling, and respectively combining the two scheduling strategies with the original scheme to obtain a new scheduling scheme, and S3, comparing the two new scheduling schemes to find out an optimal scheme. When the dynamic disturbance event occurs in the discrete manufacturing process, the dynamic scheduling strategy suitable for the dynamic discrete manufacturing environment can be provided, so that the loss caused by the dynamic disturbance factor is reduced, the production efficiency of discrete manufacturing enterprises can be improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of intelligent manufacturing, and in particular relates to a discrete manufacturing-oriented dynamic integrated job shop scheduling and assembly sequence planning method (Dynamic Integrated Job Shop Scheduling and Assembly Sequence Planning, DIJSSASP). Background technique [0002] In today's world of rapid development of science and technology and economic globalization, the discrete manufacturing industry known as the "pillar of the national economy" has undergone earth-shaking changes to better adapt to the new situation of manufacturing in the global market competition. In order to gain a competitive advantage in the market, enterprises must continuously expand production to obtain greater benefits. This has certain requirements for the production management of enterprises. While reducing production costs as much as possible to obtain more benefits, Complete the production and deliver the products according to the...

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Problems solved by technology

[0003] Current research mainly focuses on static workshop scheduling and dynamic workshop scheduling. However, in the production process, processing and assembly are two inseparable processes. The occurrence of dynamic disturbance events not only affects the processing of subsequent parts, but also have an impact on the subsequent assembly process

At present, for discrete manufacturing, how to consider the impact of dynamic disturbance events on the part processing and assembly process at the same time, so as to realize the workshop scheduling plan and product assembly plan with the best comprehensive performance, there is no effective technical method and means

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