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论文类型：期刊论文

发表时间：2022-06-29

发表刊物：大连理工大学学报

所属单位：运载工程与力学学部

期号：2

页面范围：235-240

ISSN号：1000-8608

摘要：Plate processing time and goodness of fit of shrinkage ratio curve are taken as two objective functions to build the mathematical model of the optimization issue of line heating technology parameters, and then the two objective optimization problems are translated into one by changing power coefficients. Based on hiberarchy genetic algorithm (HGA), the interpolation function with cubic spline, error analysis, etc. is used to change the objective function into individual fitness function of colony. Combining three constraints, which include the number of heating lines, the space between lines and the shrink quantity of line, HGA coding is constructed, and the inner coding and outer coding adopt different heredity arithmetic operators in inherit operating. Finally, the optimization issue of line heating technology parameters is solved. It is proved that the method can give fine prediction of line heating technique parameter for steel shell plate.

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