摘要
研究波纹管受轴向压缩时耐撞性的优化设计。首先,选择波纹管总吸能和最大冲击力为目标函数,其主要几何参数为设计变量;其次,通过试验设计获得试验方案,进而建立耐撞性分析的替代模型;最后采用多目标优化进化算法NSGA-Ⅱ(针对不同设计变量进行实数编码或二进制编码)进行计算,最终获得优化问题的Pareto前端,实现波纹管耐撞性的多目标优化设计。研究工作为波纹管耐撞性的优化设计提供了重要工程参考。
The crashworthiness optimization of corrugated tubes subjected to axial crushing was studied. Firstly,the total energy absorption and the peak impact force were selected as objective functions,and the main geometric parameters of a tube were selected as the design variables. Secondly,the surrogate models were constructed using the DOE（ design of experiment） information and the simulation results. Finally,the crashworthiness was optimized by using the multiobjective optimization algorithm NSGA-II. The binary or real number coding schemes were used for different types of variables. Pareto optimal front of this multi-objective problem was obtained to realize the multi-objective optimal design for crashworthiness of corrugated tubes. This study provided a valuable engineering reference for the crashworthiness optimal design of corrugated tubes.
出处
《振动与冲击》
EI
CSCD
北大核心
2015年第15期12-16,共5页
Journal of Vibration and Shock
基金
汽车仿真与控制国家重点实验室开放基金(20121117)
中央高校基本科研业务费专项资金(长安大学基础研究支持计划专项基金CHD2012JC021)
关键词
波纹管
耐撞性
多目标
优化
corrugated tube
crashworthiness
multi-objective
optimization
