某消声器声辐射仿真分析与形貌优化

贺岩松; 杨益; 赵曌; 孙风建

doi:10.13433/j.cnki.1003-8728.2015.0124

某消声器声辐射仿真分析与形貌优化

doi: 10.13433/j.cnki.1003-8728.2015.0124

1.
重庆大学机械传动国家重点实验室, 重庆 400030;
2.
重庆大学机械工程学院, 重庆 400030

基金项目:

国家自然科学基金项目（50975296）资助

详细信息

作者简介:
贺岩松（1968-），教授，博士生导师，研究方向为车辆系统动力学及控制和车辆振动噪声控制，hys68@cqu.edu.cn

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- 文章访问数: 226
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- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2013-05-28
- 刊出日期: 2015-01-05

Simulative Analysis on Sound Radiation of a Muffler and Topography Optimization

1.
State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400030;
2.
College of Mechanical Engineering, Chongqing University, Chongqing 400030

摘要

摘要: 先通过模态分析与传递函数研究了某款消声器的动态性能，其次采用结构有限元与声学边界元耦合分析计算了消声器辐射噪声并与排气噪声进行比较，说明了辐射噪声对消声器声学性能的明显影响。在降低原消声器厚度情况下对消声器进行形貌优化，得到消声器辐射噪声更小的优化结果。
- 有限元 /
- 边界元 /
- 辐射噪声 /
- 厚度 /
- 形貌优化
Abstract: This paper investigates the structural dynamics of a muffler through transfer function and modal analysis methods. The sound radiation of the muffler is computed by the finite element and boundary element coupled analysis, and compared with the sound level of exhaust noise, which illustrates that the radiation noise has an evident impact on the acoustic performance of the muffler. The shape of muffler is optimized by reducing its thickness, and consequently result shows that the optimized muffler has lower radiation sound level.
- boundary element method /
- computer simulation /
- computer software /
- dynamics /
- exhaust systems(engine)

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参考文献(19)

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