| 车身阻尼处理降噪的有限元分析 |
| |
| 引用本文： | 吴桢,左言言,葛玮. 车身阻尼处理降噪的有限元分析[J]. 噪声与振动控制, 2010, 30(3): 81-84. DOI: 10.3969/j.issn.1006-1355.2010.03.022 |
| |
| 作者姓名： | 吴桢 左言言 葛玮 |
| |
| 作者单位： | （江苏大学振动噪声研究所,江苏镇江212013） |
| |
| 摘 要： | 在车身顶棚内蒙皮表面进行阻尼处理,建立阻尼处理后的车身有限元模型。进行模态分析,振动响应分析,并将车身与车内声腔模型进行声固耦合计算。计算结果和阻尼处理前的声压级比较,证明车身表面阻尼处理能够有效降低乘坐室内噪声。
|
| 关 键 词： | 声学 阻尼 噪声 有限元法 声固耦合 |
| 收稿时间： | 2009-06-04 |
Finite Element Analysis of Noise Decreasing with Damping Treatment for Vehicle's Body |
| |
| WU Zhen,ZUO Yanyan,GE Wei. Finite Element Analysis of Noise Decreasing with Damping Treatment for Vehicle's Body[J]. Noise and Vibration Control, 2010, 30(3): 81-84. DOI: 10.3969/j.issn.1006-1355.2010.03.022 |
| |
| Authors: | WU Zhen ZUO Yanyan GE Wei |
| |
| Affiliation: | (Institute of Noise and Vibration, Jiangsu University, Zhenjiang, Jiangsu 212013,China) |
| |
| Abstract: | The finite element model of a vehicle＇s body,whose roof has been treated with damping,is established.The modal analysis,vibration response analysis,and acoustic-structural coupling analysis are carried out.Comparing the sound pressure levels before and after the damping treatment,it is proved that the surface damping treatment of the body can reduce the noise in the vehicle＇s cavity effectively.The result provides guidance for the application of the technology of surface damping treatment to reducing the vibration radiating noise from the vehicle＇s body. |
| |
| Keywords: | acoustics damping noise finite element method acoustic-structural coupling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《噪声与振动控制》浏览原始摘要信息 |
|
点击此处可从《噪声与振动控制》下载全文 |
|
