遗传算法在路面结构动态时域反分析中的应用研究

根据系统识别方法的基本原理,采用遗传算法为参数调整算法,在时域对柔性路面结构的材料参数进行了位移反分析的研究。结果表明,遗传算法是一种有效的全局搜索方法;对于不同的模量估计范围,其反演结果基本一致,发散性较小;反算过程稳定收敛;遗传算法对于路面结构材料参数的动态识别是适用的、有效的。

Application research of inverse dynamic analysis of genetic algorithm

A system identification method is used to backcalculate the material properties of the pavement, and introduce a genetic algorithm to the back calculation of pavement material character, The forward analysis is done through an analytical method in the time domain. The probability of selection is calculated based on the value of the objective fitness function. The new group is generated by crossover and mutation with certain probabilities. The operation continues until convergence. Numerical results show that the backcalculation process is stable and convergent.