Low Frequency Interior Noise Control of a Certain SRV

China Mechanical Engineering ›› 2010, Vol. 21 ›› Issue (11): 1381-1385.

Low Frequency Interior Noise Control of a Certain SRV

Chen Jian;Wen Zhiming;Li Jifeng

Anhui Key Laboratory of Vehicle NVH and Reliability,Hefei University of Technology,Hefei,230009

Online:2010-06-11 Published:2010-06-23
Supported by:
Anhui Provincial Science and Technology Innovative Research Team Program of China（No. 2006KJ010TD）

SRV车内低频噪声控制

陈剑;文智明;李继锋

合肥工业大学安徽省汽车NVH与可靠性重点实验室,合肥,230009

基金资助:
安徽省级科技创新团队计划资助项目(2006KJ010TD)；安徽省重点实验室人才基金资助项目(070234E2)
Anhui Provincial Science and Technology Innovative Research Team Program of China（No. 2006KJ010TD）

Abstract

Abstract:

To a certain SRV(sport recreational vehicle),firstly BIP(body in prime) FE model and acoustic FE model were built by experiments and CAE modal analysis. FEM and BEM were used to analyse the dynamic response of the BIP and acoustic cavity. Then panel contribution analysis and dynamic sensitivity analysis were made at the frequencies where the peak values were found. Lastly, according to the results of dynamic sensitivity analysis, interior noise is improved effectively by optimizing the thickness of some panels.

Key words: modal analysis, FEM, BEM, panel contribution, dynamic sensitivity, optimization

摘要：

通过实验和CAE模态分析建立了某SRV白车身的有限元模型和声腔有限元模型。使用有限元和边界元法分析了白车身结构和声腔的动态响应特性。针对峰值频段,进行了面板贡献量与结构的动态灵敏度分析。根据灵敏度分析结果,对板件厚度进行了优化,有效降低了车内噪声水平。

关键词:

模态分析, 有限元, 边界元, 面板贡献量, 动态灵敏度, 优化

CLC Number:

CHEN Jian, WEN Zhi-Meng, LI Ji-Feng.

Low Frequency Interior Noise Control of a Certain SRV

[J]. China Mechanical Engineering, 2010, 21(11): 1381-1385.

陈剑, 文智明, 李继锋.

SRV车内低频噪声控制

[J]. 中国机械工程, 2010, 21(11): 1381-1385.

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