Optimization method of genetic algorithm

Abstract

The invention discloses an optimization method of genetic algorithm. The optimization method comprises the following steps: (1) arithmetic crossover is regulated; (2) a boundary operator is adapt to a constrained optimization problem, and spherical crossover is performed; (3) gauss mutation is obtained according to an evolutionary strategy, one filial generation in the gauss mutation comprises two vectors, that is (chi and sigma). The meanings of the chi and the sigma respectively represent a certain point in space searching and standard deviation. The optimization method of the genetic algorithm, disclosed by the invention, can overcome the defects of low reliability, complicated operating process, high cost and the like in the prior art so as to realize the advantages of high reliability, simple operating process and low cost.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to an optimization method of a genetic algorithm. Background technique [0002] At present, the civil engineering damage identification technology based on vibration signals has been recognized by many researchers at home and abroad. Because the signal is easy to obtain, usually only simple instruments can be obtained, and it is more convenient to process, so it has been widely used. In terms of structural health monitoring, damage identification technology has always been a difficult problem for engineers all over the world, and it is a core issue that must be overcome. Damage identification technology directly affects the development of structural health monitoring. The current damage diagnosis technology is not perfect. Some recognition technologies cannot identify the damage of the structure well, nor can they evaluate the operating status of the structure well. There ...

AI Technical Summary

Problems solved by technology

Although the structural health diagnosis technology is gradually becoming more informatized and intelligent, manual detection is still the main diagnostic method at present, such as partial method and visual inspection method. Such methods cannot detect structural damage in the first place and have many shortcomings. Therefore, the application has great limitations

For example, the cracks in the U.S. Bamboo Island Bridge had been developed for 3 days when they were discovered. The cracks were not found in the first place and caused major economic losses. Moreover, some hidden parts and some inaccessible parts of the structure cannot be identified by manual inspection. is also one of its flaws

[0004] In the process of realizing the present invention, the inventor found that there are at least defects such as low reliability, complicated operation process and high cost in the prior art

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