摘要
针对车辆轻量化设计问题,提出一种将高维模型(HDMR)与变密度法(SIMP)结合的方法:HD-MR—SIMP法,并成功将HDMR—SIMP法应用在钢-铝混合车架设计中,把钢铝组合离散问题转换为材料的最优分布问题,经过计算,得到最优钢铝组合,完成车架设计。该方法拓展了拓扑优化方法的使用范围,并且避免优化计算过程中重复调用有限元模型,提高了计算效率,有较强工程实用性。
To solve the problem on lightweight car design,HDMR-SIMP method is proposed by combining HDMR(high dimensional model)method and SIMP(Solid Isotropic Material with Penalization)method.This method is applied to the car frame design and is able to turn discrete problem of steel and aluminum combination to the optimum distribution material problem.After calculations,the best combination of steel and aluminum is obtained and applied to the car frame design.This method expands the application of topological optimization,and it avoids always invoking finite element model,which improve calculating efficiency,so this method has a good engineer practicality.
作者
康晋
王铁强
KANG Jin;WANG Tieqiang(Automotive Engineering Institute,Hunan Communication Polytechnic,Changsha 410132,China)
出处
《机械设计与研究》
CSCD
北大核心
2021年第4期120-124,139,共6页
Machine Design And Research
关键词
钢-铝混合车架
轻量化
高维模型
变密度法
拓扑优化
steel-aluminum hybrid frame
lightweight
high dimensional model
SIMP
topological optimization
