重庆理工大学学报（自然科学版）2018，Vol.32Issue(5)：1-11,11.DOI:10.3969/j.issn.1674-8425(z).2018.05.001
基于不同损伤评价标准的正面碰撞乘员保护研究
Research of Occupant Protection in Frontal Collision Based on Different Injury Criteria
摘要
Abstract
Based on different occupant injury and trauma criteria of car safety,diverse configurations for a restraint system may be got after optimization.The experimental design method was used to select the design points and surrogate models were constructed with Polynomial SVD,Kriging and neural net. Then,the precision of three models were tested by several random samples.The neural net model was optimized by genetic algorithm.There are a large discrepancy between surrogates and MADYMO models on the contact boundary.Multi-propose optimization,weighted injury criteria,China-new car assessment program,were discussed,respectively,and results were iterated by MOGA-Ⅱ evolutionary algorithm under three criteria.Comparing the simulation results shows that the optimized restraint system through the multi-objective optimization is difficult to reach the non-inferiority Pareto solution in the limited calculation time.Moreover,it is hard to search the reference values for a restraint system in the solution set of high dimensional space.On the other hand,the different matching parameters were got based on two normalized standards,which shows that WIC focuses on important body parts depending on their weights and C-NCAP aims to reach the injury threshold of each part.关键词
代理模型/多目标优化/WIC/C-NCAP/乘员保护Key words
surrogate model/multi-propose optimization/WIC/C-NCAP/occupant protection分类
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胡远志,甘顺,刘西,蒋成约,任立海..基于不同损伤评价标准的正面碰撞乘员保护研究[J].重庆理工大学学报（自然科学版）,2018,32(5):1-11,11.基金项目
国家自然科学基金资助项目(51405050) （51405050）
2015年重庆市重点产业共性关键技术创新专项(cstc2015zdcy-ztzx60010) （cstc2015zdcy-ztzx60010）
2015重庆市基础与前沿研究计划项目(cstc2015jcyjA00048) （cstc2015jcyjA00048）
