汽车保险杠吸能盒低速碰撞稳健性分析及优化  

Low-speed impact robust analysis and optimization for automotive bumper energy-absorbing box

作　　者：丁玲[1] 朱雄[1] 

机构地区：[1]合肥工业大学机械与汽车工程学院

出　　处：《客车技术》2013年第4期32-34,共3页Bus Technology

摘　　要：将汽车保险杠吸能盒内外板材料特性、厚度作为不确定变量，应用最优拉丁超立方设计在不确定区间内抽取40个样本点，采用kriging方法拟合各响应的近似模型，且其精度满足要求。基于已建立的kriging近似模型进行稳健性分析，同时结合NSGA—II算法进行多目标稳健性优化，取得了较好的优化结果，且计算效率得到极大提高。Take the property,thichness of inside and outside board of energy-absorbing box for automotive bumper as uncertain variables,using optimal Latin hypercube design to extract 40 pes of sample point in uncertain range,using kriging method to fit the response of approximate model,and meet the requirement of its precision,make robust analysis based on establishede kriging approximate model,meanwhile combine NSGA-II calculation method for multi-objective robust optimization,obtains good optimization result,and greatly improve the calculation efficiency.

关 键 词：吸能盒 kriging近似模型 稳健性分析 稳健性优化 

分 类 号：O212.1[理学—概率论与数理统计]