噪声与振动控制Issue(5)：107-110,4.DOI:10.3969/j.issn.1006-1335.2015.05.022
模态辐射效率在微车低频轰鸣问题中的应用
Application of Modal Radiation Efficiency to the Analysis of Low-frequency Booming Noise in Mini-cars
向伟 1丁渭平 1吴昱东 1王铃燕 1蒋宇1
作者信息
- 1. 西南交通大学 汽车工程研究所，成都 610031
- 折叠
摘要
Abstract
The rear door of a mini-car was simplified as a 4-edge simply supported plate, and its computation model was established by means of the finite element method and boundary element method. The influence of thickness and stiffness changing of the plate and the additional mass at the abdominal point of the low-order modals on the modal radiation efficiency (20 Hz-100 Hz) was discussed. Through the analysis and rectification for the interior low-frequency acoustic performance of the car, the feasibility of using modal coupling radiation efficiency to guide the rectification of interior low-frequency acoustic features was verified.关键词
声学/微车/低频/轰鸣声/模态辐射效率Key words
acoustics/mini car/low-frequency/booming noise/modal radiation efficiency分类
交通工程引用本文复制引用
向伟,丁渭平,吴昱东,王铃燕,蒋宇..模态辐射效率在微车低频轰鸣问题中的应用[J].噪声与振动控制,2015,(5):107-110,4.
