基于混沌遗传算法的齿轮变速箱优化设计

Optimization Design of Gear Box based on Chaotic Genetic Algorithm

针对变速箱结构复杂、优化设计参数较多的问题,在遗传算法基础上结合混沌优化理论,提出了混沌遗传优化算法。该方法利用混沌的映射技术的遍历性产生初始群体,在寻优过程中利用混沌的二次载波技术对种群个体进行微小的扰动,从而跳出局部极值达到全局寻优的目的。设计实例表明,该方法不但可提高求解精度,而且搜索过程高效可行,是求解复杂结构多参数优化设计的有效方法。

A chaotic genetic algorithm based on genetic algorithm combined with chaotic theory is purposed to the complex and more parameters optimal problem of gear box.In the method,the initial population is produced by the ergodicity of chaotic and the optimization process is made small perturbations on individual populations by using the second carrier wave technology,optimal solution is obtained by jumping out of local minimum.The design examples show that,the method is not only efficient and precision for searching the global optimal solution,but also a efficient technique to solve complex optimizations problems.