摘要
为解决实际工程中设计变量多、设计空间大的优化问题,提出了分步优化策略。它将所有的设计变量分成数目较少的几组,结合新近开发出来的基于元模型的优化方法,逐步确定每一组设计变量的值。将该策略应用于某款车后车架的轻量化分析,验证了其有效性。
For solving the optimization problems in practical engineering with a great number of design variables and large design space,a stepwise optimization strategy is proposed,in which the design variables are divided into several groups,and combined with lately developed metamodel-based global optimization technique,the values of design variables in each group are determined step by step.The strategy is applied to the lightweighting analysis on the rear frame of a vehicle,demonstrating its effectiveness.
出处
《汽车工程》
EI
CSCD
北大核心
2011年第7期641-644,共4页
Automotive Engineering
关键词
后车架
分步策略
全局优化
轻量化
rear frame
step strategy
global optimization
lightweighting
