摘要
针对汽车低速正面碰撞时车身部件的抗撞性优化问题,选择了碰撞盒结构作为研究对象,运用二次回归正交组合试验设计方法合理分布试验点,并结合最小二乘法构造出整体质量、吸能值及最大碰撞力关于板厚的响应面模型;综合考虑实际车身部件板厚范围及轻量化要求,采用自适应响应面法对响应面模型进行了优化设计.结果表明,提出的碰撞盒结构优化方法及流程具有较高的精确性和有效性.
Aiming at the crashworthiness optimal problem of autobody structures during lowspeed frontal crash,the crash box is chosen as a subject to be analyzed and designed to optimize the vehicle frontal crashworthiness capacity.The secondary regressive orthogonal-composite design（ROCD）and least-square method are employed to construct the response surface models of total mass,energy absorbed value and maximal crash force for investigating the performance of entire structure.Considering the range of actual thickness of the autobody structure and the request of lightweight,the adaptive response surface methodology（RSM）is applied to realize the optimal design.The result demonstrates that the optimal method and process proposed have high accuracy and validity.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2010年第10期1175-1179,共5页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(50975121)
国家教育部高等学校博士学科点专项科研基金资助项目(20090061110022)
吉林省科技发展计划资助项目(20096004)
关键词
抗撞性
吸能
试验设计
响应面法
优化设计
crashworthiness
energy-absorbing
design of experiment（DOE）
response surface methed（RSM）
optimal design
