A multi-objective optimization method for casting production line

Abstract

The invention discloses a method for multi-objective optimization of a casting production line, which includes: obtaining production parameters in the current processing batch of the casting production line; wherein, the production parameters include the number of operating machines used for processing, the type of workpieces to be processed, and the number of workpieces to be processed The number of corresponding processing procedures and workpieces to be processed; using the relaxation time coefficient values ​​corresponding to the processing procedures one by one as an optimization variable to establish an objective function; obtaining at least one set composed of relaxation time coefficient values ​​according to the multi-objective chaos optimization algorithm; set There is only one relaxation time coefficient value corresponding to the same process to be processed; the optimal solution set is obtained according to the total power consumption and the total processing time. By optimizing the processing time of each process, the working time and idle time of the working machines are reasonably allocated, and the power consumption of production is reduced.

Description

technical field [0001] The invention relates to the technical field of a casting production line, in particular to a multi-objective optimization method for a casting production line. Background technique [0002] With the rise of the industrial 4.0 scientific and technological revolution, my country's foundry industry has developed rapidly, and castings are widely used in aviation, aerospace, weapons, ships, automobiles and electronics industries. Low efficiency, poor consistency and high energy consumption. It is difficult to meet the requirements of high-end equipment manufacturing for precision, efficiency and energy saving. High-efficiency, high-intelligence, energy-saving and environment-friendly foundry production lines have become the trend of industrial production in the future. [0003] Most of the traditional production scheduling problems for casting production lines only consider production cost and production efficiency, and use the balance rate or smoothing c...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a multi-objective optimization method for a casting production line to solve the problem that in the production scheduling process of the production line in the prior art, it is usually assumed that the operating machine is performing operations at its maximum speed, starting when the scheduling allows, otherwise Idle, which will lead to unnecessary high power acceleration and longer idle time, while the machine is still consuming power when idle, which not only causes waste of resources, but also increases production costs

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