基于行人头部保护的某SUV发动机罩模态分析  

Modeling,validation and optimization of SUV based on EuroNCAP pedestrian head protection

作　　者：邢艳云[1] 于波[2] 吕晓江[3] 

机构地区：[1]天津职业技术师范大学汽车与交通学院,天津300160 [2]中国汽车技术研究中心,天津300162 [3]浙江吉利汽车研究院有限公司,浙江杭州311228

出　　处：《山东理工大学学报（自然科学版）》2013年第4期20-24,共5页Journal of Shandong University of Technology:Natural Science Edition

基　　金：天津工程师范学院科研发展基金资助项目(KJ2008032)

摘　　要：对某SUV发动机罩优化前后进行了NVH模态性能研究.建立了车型发动机罩有限元模型,利用NASTRAN软件对车型发动机罩进行了前6阶模态分析,计算结果表明,优化后的发动机罩在满足EuroNCAP行人头部保护性能的前提下能够同时兼顾NVH模态性能,从而为开发以EuroNCAP五星行人头部保护为目标的车型提供改进与评价参考.The NVH performance of SUV is evaluated base on European New Car Assessment Program（EuroNCAP）pedestrian protection five star criterion.The front body of CAE model was built according to EuroNCAP,and the model was correlated very well with the test based on the data of acceleration.In order to improve the performance for pedestrian head impact,the optimization proposal was provided after analyzing the results.It is showed that the pedestrian head impact performance of the SUV was enhanced significantly after the optimization implemented,and the result also can be a guideline for vehicle pedestrian head performance improvement.

关 键 词：发动机罩 NVH 模态分析 优化 

分 类 号：U463.821[机械工程—车辆工程]