摘要
汽车乘坐舒适性(NVH性能)的好坏是衡量汽车性能优良与否的一项重要指标,电驱总成NVH性能是组成纯电动车NVH性能的重要一项。在改善电驱总成高频啸叫噪声方面,采用基于传递路径分析(TPA)的方法,运用声学包裹对电驱总成进行包裹,并将包裹前、后的高频啸叫噪声作对比,对比发现:声学包裹后车内高频啸叫噪声有明显改善。
The ride comfort(NVH performance)of automobiles is an important index to evaluate the performance of automobiles.The NVH performance of the electric drive assembly is an important component of the NVH performance of the pure electric vehicle.In order to improve the high-frequency squealing noise of electric drive assembly,based on the method of transfer path analysis(TPA),the acoustic package was used to wrap the electric drive assembly,and the high-frequency squealing noise before and after wrapping was compared.The comparison shows that the high-frequency squealing noise in the car after acoustic package is obviously improved.
作者
阮诗颂
王渊明
裴永生
徐潇寒
RUAN Shisong;WANG Yuanming;PEI Yongsheng;XU Xiaohan(College of Vehicles and Energy,Yanshan University,Qinhuangdao Hebei 066004,China;Hebei Key Laboratory of Special Delivery Equipment,Qinhuangdao Hebei 066004,China;Qinhuangdao Tobacco Machinery Co.,Ltd.,Qinhuangdao Hebei 066004,China;Dongfeng Commercial Vehicle Co.,Ltd.,Wuhan Hubei 430000,China)
出处
《汽车零部件》
2019年第4期82-85,共4页
Automobile Parts
基金
河北省自然科学基金资助项目(E2015203002)
秦皇岛市科学技术研究与发展计划资助项目(201701B039)
关键词
传递路径分析
声学包裹
高频啸叫噪声
Transfer path analysis
Acoustic package
High-frequency squealing noise
