改进进化方向的遗传算法与结构遗传设计

Improved Evolutionary Direction Way for Genetic Algorithms and Structural Genetic Design

基于Ｙａｍａｍｏｔｏ提出的一种新的进化策略，得到一种改进进化方向的遗传算法．该法用于桁架结构遗传设计，不仅能够提高收敛速度，而且提高桁架遗传设计精度，与梯度下降进化方向遗传算法相比，计算时间大大减少．

Based on evolutionary direction operator proposed by Yamamoto,a new improved evolutionary direction way for genetic algorithms is obtained and used to optimize truss structural design. The result shows that it can increase the convergence rate and improve the quality of truss optimization. Compared to gradientbased evolutionary direction way,it reduces the calculating time greatly.