| Noise Analysis of an Lightweight Auto-body Using FEM/BEM |
| |
| 作者姓名： | 李在伟 朱平 梁新华 |
| |
| 作者单位： | [1]Information department, Zhejiang University of Finance, Hangzhou 310012, China [2]School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
| |
| 摘 要： | Since numeric simulation can save much costs, it is widely used in autombile design. Besides, noise, vibration and harshness（NVH） performance is one major target for engineer to design a competitive product. In this paper, NVH performance of a lightweight auto-body prototype using alternative materials and gauge thickness were studied by finite element materials and boundary element method （BEM）. In order to fred the most contributing panel to the peak value of response, the panel acoustic contribution analysis （PACA） was performed and the most effective modification area was located. Finally, the sound pressure was reduced by putting damping material on these parts.
|
| 关 键 词： | 轻型本体模型 噪声分析 FEM BEM 汽车 NVH性能 |
| 文章编号： | 1672-5220（2007）01-0099-04 |
| 修稿时间： | 2005-04-06 |
Noise Analysis of an Lightweight Auto-body Using FEM/BEM |
| |
| LI Zai-wei,ZHU Ping,LIANG Xin-hua.Noise Analysis of an Lightweight Auto-body Using FEM/BEM[J].Journal of Donghua University,2007,24(1):99-102. |
| |
| Authors: | LI Zai-wei ZHU Ping LIANG Xin-hua |
| |
| Institution: | 1. Information department, Zhejiang University of Finance, Hangzhou 310012, China
2. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
| |
| Abstract: | Since numeric simulation can save much costs, it is widely used in automobile design. Besides, noise, vibration and harshness(NVH) performance is one major target for enginer to design a competitive product. In this paper, NVH performance of a lightweight auto-body prototype using alternative materials and gauge thickness were studied by finite element method (FEM) and boundary element method (BEM). In order to find the most contributing panel to the peak value of response, the panel acoustic contribution analysis (PACA) was performed and the most effective modification area was located. Finally, the sound pressure was reduced by putting damping material on these parts. |
| |
| Keywords: | NVH contribution analysis FEM BEM |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
