基于DOE分析实现汽车车架轻量化  

Lightweight design for a car body frame based on design of experiment

作　　者：曾多[1] 金达锋[1] 

机构地区：[1]清华大学汽车学院,北京100084

出　　处：《汽车实用技术》2014年第5期1-4,共4页Automobile Applied Technology

摘　　要：针对车架结构轻量化问题,提出了一种基于DOE分析的优化设计方法。该方法首先利用拉丁超立方选点方式生成样本点,然后对每组样本点所对应的结构利用有限元软件进行分析,并提取出该结构下的响应。最后分析结果,得到最优的解。与直接利用优化算法对结构进行优化设计相比,该方法计算量小,更具有实际的工程意义。This paper develops an optimization method for the lightweight design of a car body frame, and this strategy is based on design of experiment. In the first palace, sampling points are generated according to Latin Hypercube Sampling. Then finite element analysis is conducted regarding to each sampling point. After that, each structure＇s responses are gained and stored. Finally, the results are elaborately analyzed and compared, and a optimum is harvested. In comparison with the result gained by using optimization algorithms directly, this method can significantly save time, which is more practical.

关 键 词：结构优化 实验设计 轻量化 

分 类 号：U463.32[机械工程—车辆工程]