发动机外特性模拟的多目标优化方法  

Multi-objective Optimization Design for Engine WOT Performance Simulation

作　　者：陈伟国[1] 王伟[1] CHEN Weiguo , WANG Wei(Engine Engineering ＆ Research Institute, Chery Automobile Co.,Ltd., Wuhu 241009, Chin)

机构地区：[1]奇瑞汽车股份有限公司发动机研究院整机技术部,安徽芜湖241009

出　　处：《内燃机与动力装置》2018年第3期56-60,共5页Internal Combustion Engine & Powerplant

摘　　要：为提升计算效率,在发动机前期计算中引进现代实验设计(design of exporiments,DOE)技术,从众多的变量中发现主效应和相互作用比较显著的参数;通过对拉丁超立方设计方法选取的样本进行模拟计算,推出响应表达式进行曲面拟合。结果表明:DOE技术可以在样本量较少的情况下准确的完成发动机外特性的优化。The application of DOE technique in engine performance aim at improving calculation efficiency, and finding factors which have main effect and interaction effect on engine pefformance. Response expression will be achieved by simulation results which use Latin Hypereube Sampling design based on factors in fixed range, then create response surface. Simulation results demonstrate that DOE technique finishes optimization of engine WOT pefformance on condition that there are lesser samples.

关 键 词：试验设计 曲面响应设计 性能模拟 

分 类 号：U464.12[机械工程—车辆工程]