东华大学学报（英文版）2007，Vol.24Issue(1)：99-102,4.
Noise Analysis of an Lightweight Auto-body Using FEM/BEM
Noise Analysis of an Lightweight Auto-body Using FEM/BEM
LI Zai-wei 1ZHU Ping 2LIANG Xin-hua2
作者信息
- 1. Information department, Zhejiang University of Finance, Hangzhou 310012, China
- 2. School of Mechanical Engineering, Shanghai Jiaotong University, Shanghai 200030, China
- 折叠
摘要
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.关键词
NVH/contribution analysis/FEM/BEMKey words
NVH/contribution analysis/FEM/BEM分类
机械制造引用本文复制引用
LI Zai-wei,ZHU Ping,LIANG Xin-hua..Noise Analysis of an Lightweight Auto-body Using FEM/BEM[J].东华大学学报（英文版）,2007,24(1):99-102,4.
