摘要
为保证轻量化车身的车顶在滚翻事故中有足够的强度抵抗变形,参考美国的有关标准对车顶进行抗压强度有限元分析,采用拉丁超立方法进行虚拟试验设计(Design of Experiment,DOE);根据虚拟DOE结果分析车身侧围和顶部部件的敏感度,得到最敏感的6个部件;采用微分进化算法对这些部件进行优化计算,并用高强度材料替换,达到保证抗压性、经济性并减轻部件质量的目的.
To ensure the enough roof strength to resist deformation for light weight vehicle body in rollover accident,a finite element analysis is performed on roof crush resistance strength referring to the American standards,and a Latin hypercube method is used to perform virtual DOE（Design of Experiment）;the sensitivity of the vehicle body side and top parts are analyzed according to the DOE results and six of the most sensitive components are obtained;the components are calculated in optimization by differential evolution algorithm and the materials are replaced by high-strength materials.The purpose of ensuring crush resistance performance,low cost and reducing component weight is achieved.
出处
《计算机辅助工程》
2012年第2期46-49,共4页
Computer Aided Engineering
基金
上海市科技人才计划(09QB1402600)
关键词
白车身
概念设计
拉丁超立方法
微分进化算法
有限元
虚拟试验
body in white
conceptual design
Latin hypercube method
differential evolution algorithm
finite element
virtual test
