摘要
采用均匀拉丁方实验设计方法进行了样本数据设计,并且采用移动最小二乘响应面方法构建了拼焊板内板门系统的刚度、强度、侧碰安全性多学科系统的近似模型。利用连续二次规划优化方法对此近似模型进行了优化,将拼焊板内板焊缝线位置及各板件的厚度作为设计变量,在使车门系统的下垂刚度、强度及侧碰性能得到提高的同时,使得车门系统质量得到较大程度的减小。
Sampling points were obtained by using uniform Latin squares design of experimental method,and the multidisciplinary design optimization（MDO） approximated system,including the door stiffness,strength and side crashworthiness,was constructed by the moving least-squares response surface approximate method.The approximate model was then optimized by using sequential quadratic programming method. The performance of the door system,including the vertical stiffness,strength and side crashworthiness,was improved by optimizing the positions of the welding line as well as thickness of each part. In addition,the weight of the door is also reduced.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2010年第4期495-499,共5页
China Mechanical Engineering
基金
教育部长江学者与创新团队发展计划资助项目(531105050037)
湖南大学汽车车身先进设计制造国家重点实验室自主研究课题资助项目(60870002)
关键词
多学科设计优化
响应面法
轻量化
拼焊板
multidisciplinary design optimization（MDO）
response surface model
lightweight
tailed weld bank（TWB）
