山东理工大学学报（自然科学版）
山東理工大學學報（自然科學版）
산동리공대학학보（자연과학판）
JOURNAL OF SHANDONG UNIVERSITY OF TECHNOLOGY(SCIENCE AND TECHNOLOGY)
2013年
4期
20-24
,共5页
发动机罩%NVH%模态分析%优化
髮動機罩%NVH%模態分析%優化
발동궤조%NVH%모태분석%우화
pedestrian head protection%NVH structure modification%optimization
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NV H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。
對某SUV髮動機罩優化前後進行瞭NVH模態性能研究。建立瞭車型髮動機罩有限元模型，利用NASTRAN軟件對車型髮動機罩進行瞭前6階模態分析，計算結果錶明，優化後的髮動機罩在滿足EuroNCAP行人頭部保護性能的前提下能夠同時兼顧NV H模態性能，從而為開髮以EuroNCAP五星行人頭部保護為目標的車型提供改進與評價參攷。
대모SUV발동궤조우화전후진행료NVH모태성능연구。건립료차형발동궤조유한원모형，이용NASTRAN연건대차형발동궤조진행료전6계모태분석，계산결과표명，우화후적발동궤조재만족EuroNCAP행인두부보호성능적전제하능구동시겸고NV H모태성능，종이위개발이EuroNCAP오성행인두부보호위목표적차형제공개진여평개삼고。
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 op-timization 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 .
