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Vehicle engine body machining process path optimization method based on improved genetic algorithm

A technology of engine body and processing technology, applied in the direction of design optimization/simulation, gene model, etc., to achieve the effect of improving the processing efficiency of the engine body, improving the evolution performance, and optimizing the processing efficiency of the engine body

Pending Publication Date: 2020-06-09
CHANGCHUN EQUIP TECH RES INST
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Problems solved by technology

[0003] Aiming at the existing problems in the processing process of the vehicle engine body, the present invention provides a method for optimizing the processing path of the vehicle engine body based on the improved genetic algorithm, which is used to solve the problem of optimizing the processing path of the engine body

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  • Vehicle engine body machining process path optimization method based on improved genetic algorithm
  • Vehicle engine body machining process path optimization method based on improved genetic algorithm
  • Vehicle engine body machining process path optimization method based on improved genetic algorithm

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention, and the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0030] What needs to be explained is the complexity of the machining process of a certain vehicle engine body. It needs to process 16 surfaces. Each surface is classified according to the processing characteristics, processing methods, tool types and tool sizes. Multiple steps in each category constitute a process. Step group, each step group completes the processing of each feature in turn by a tool clamped once. According to the characteristics of the...

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Abstract

The invention discloses a vehicle engine body machining process path optimization method based on an improved genetic algorithm. The method comprises: setting genetic parameters such as ditches and chromosome numbers; generating an initially optimized initial population; carrying out selection operation based on a roulette; carrying out adaptive cross calculation to prevent advanced convergence ofthe algorithm and improve the optimization efficiency of the algorithm; then, adopting an adaptive mutation probability to improve the evolution performance and achieve global search of the algorithm; and storing the optimal individual in the multi-generation random evolution process so far through an optimization strategy, wherein the optimal individual is the optimal solution of the shortest process path problem. According to the embodiment, the optimization problem of the machining process of a certain plane of the vehicle engine body is studied, the optimal solution of the machining pathis obtained, and then the purposes of optimizing the body process scheme and improving the body machining efficiency are achieved.

Description

technical field [0001] The invention relates to the technical field of processing technology optimization, in particular to a method for optimizing the processing technology path of a vehicle engine body based on an improved genetic algorithm. Background technique [0002] Due to the complexity of the machining process of a certain vehicle engine body, 16 surfaces need to be processed, and each surface is classified according to the processing characteristics, processing methods, tool types and tool sizes, and multiple working steps of each type constitute a working step group. Each step group completes the processing of each feature in turn by a tool clamped once. At present, the preparation of processing technology mainly depends on the experience of craftsmen, which lacks scientificity and processing efficiency is not high. Therefore, how to optimize the processing path of the working step group has become the basis for improving the optimization of the machine body proce...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06N3/12
Inventor 于航孟凡军张大舜王静杜娟范悦杨秀才钱冬梅苗立琴姜楠孙利忠王若平胡东吉崔万瑞乔欢李福坤
Owner CHANGCHUN EQUIP TECH RES INST
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