天津科技大学学报2017，Vol.32Issue(5)：60-63,78,5.DOI:10.13364/j.issn.1672-6510.20160394
等效辐射声功率在汽车NVH开发中的应用
Application of Equivalent Radiant Power in the Development of Automobile NVH
傅旻 1李琦 1霍俊焱 2陈达亮2
作者信息
- 1. 天津科技大学机械工程学院,天津 300222
- 2. 中国汽车技术研究中心,天津 300300
- 折叠
摘要
Abstract
Taking three typical domestic cars as examples,the peak value consistency of the equivalent radiant power(ERP) and the noise transfer function(NTF)was analyzed and summarized.Sound pressure levels of the driver's right ear and the rear passenger's left ear of three car models A,B and C were analyzed.Non-standard sound pressure levels caused by excita-tions were counted.The ERP of the vital panels of the three models was analyzed at the same excitations.Statistical analysis shows that at the same frequency,more than 50% non-standard NTF peak values are consistent with some panels's ERP peak values.A target value of ERP was proposed.The structure was optimized in models to meet both ERP and NTF standards at the same time.In the early stage of NVH development,especially in the phase of Body in White,this ERP analysis method can help find out problems very soon and shorten the development time.关键词
ERP/NTF/NVH/声压级/优化Key words
equivalent radiant power/noise transfer function/noise/vibration/harshness/sound pressure level/optimization分类
交通工程引用本文复制引用
傅旻,李琦,霍俊焱,陈达亮..等效辐射声功率在汽车NVH开发中的应用[J].天津科技大学学报,2017,32(5):60-63,78,5.
