同济大学学报（自然科学版）2012，Vol.40Issue(12)：1882-1887,6.DOI:10.3969/j.issn.0253-374x.2012.12.024
基于Kriging模型的大客车侧翻安全性多目标优化
Multi-objective Optimization for Bus Rollover Safety Based on Kriging Model
摘要
Abstract
A finite element model of a bus is established, and according to the ECE R66 regulation, multi-objective optimization is carried out for the bus rollover safety. First, on the basis of the rollover simulation result, the section shapes of the key parts in the upper structure are selected as design variables. The maximum acceleration of the center of gravity and the mass are then taken as objectives, and the angles between side pillars and the floor are selected as constraints. Then, combined with optimal Latin Hypercube, the Kriging models of high accuracy are constructed. Finally, multi-objective optimization for the bus rollover safety is performed with NSGA-II, and the Pareto optimal set is obtained. The conclusion is drawn that the rollover safety can be improved by using section shape optimization when a limited mass is increased.关键词
Kriging模型/形状优化/多目标优化/NSGA-Ⅱ算法Key words
Kriging model/shape optimization/multi-objective optimization/NSGA-II algorithm分类
交通工程引用本文复制引用
高云凯,张朋,吴锦妍,王婧人..基于Kriging模型的大客车侧翻安全性多目标优化[J].同济大学学报（自然科学版）,2012,40(12):1882-1887,6.
