噪声与振动控制

›› 2010, Vol. 30 ›› Issue (1): 29-32.DOI: 10.3969/j.issn.1006-1355.2010.01.029

• 运载工具振动与噪声 • 上一篇    下一篇

《模态振动对噪声贡献预测及控制》

赵阳东,刘更,吴立言,马尚君   

  1. （西北工业大学机电学院，西安710072）
  • 收稿日期:2009-02-24 修回日期:1900-01-01 出版日期:2010-02-18 发布日期:2010-02-18
  • 通讯作者: 赵阳东

《Prediction and Control of Contribution of Modal Vibration to Noise》

ZHAO Yang-dong,LIU Geng,WU Li-yan,Ma Shang-jun   

  1. (School of Mechatronic Engineering, Northwestern Polytechnical University, Xi'an710072, China)
  • Received:2009-02-24 Revised:1900-01-01 Online:2010-02-18 Published:2010-02-18
  • Contact: ZHAO Yang-dong

PDF

摘要：

建立某船用增速箱的结构有限元模型和声固耦合边界元模型。对结构有限元模型进行结构模态分析；运用边界元法对增速箱声固耦合模型进行求解。通过计算仿真分析该模型噪声在特定频域中的分布情况。基于结构模态贡献度方法对增速箱的主要噪声源进行识别并进行有效控制。可对产品的设计开发提供参考。

关键词: 声学, 增速箱, 振动, 噪声控制, 边界元, 贡献度

Abstract:

The structural finite element model and soundstructure coupling boundary element model of a transmission box are established in this paper. The modal analysis of the structural finite element model is done. The soundstructure coupling boundary element model is solved by boundary element method (BEM). The distribution of noise in a particular frequency domain is analyzed. Based on modal acoustic contribution analysis (MACA), the identification and effective control of the main noise source of the transmission box are carried out. This work has a practical significance for research and development of this product.

Key words: acoustics, transmission box, vibration, noise control, BEM, contribution

中图分类号: