| 汽车排气消声器的三维声学性能分析 |
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| 引用本文： | 葛蕴珊,张宏波,宋艳冗,谭建伟,张学敏,韩秀坤. 汽车排气消声器的三维声学性能分析[J]. 汽车工程, 2006, 28(1): 51-55,63 |
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| 作者姓名： | 葛蕴珊 张宏波 宋艳冗 谭建伟 张学敏 韩秀坤 |
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| 作者单位： | 北京理工大学机械与车辆工程学院,北京,100081;北京理工大学机械与车辆工程学院,北京,100081;泛亚汽车技术中心,上海,201201 |
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| 摘 要： | 在利用三维有限元法研究简单结构的消声器的声学消声性能基础上,对于复杂结构的消声器进行了声学性能预测。数值仿真结果和试验结果的良好吻合表明,三维有限元法适合于研究消声器的声学消声性能,具有相当高的精度。同时利用消声器内部的压力云图研究消声器结构对于声波传播的影响,并且应用三维有限元法进一步研究了穿孔率和穿孔管长度对于复杂结构的汽车排气消声器的声学消声性能的影响。
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| 关 键 词： | 噪声 三维有限元分析 汽车排气消声器 声学性能 |
| 收稿时间： | 2004-11-15 |
| 修稿时间： | 2004-11-152005-01-24 |
An Analysis on 3D Acoustic Performance of Automotive Exhaust Muffler |
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| Ge Yunshan,Zhang Hongbo,Song Yanrong,Tan Jianwef,Zhang Xuemin,Han Xiukun. An Analysis on 3D Acoustic Performance of Automotive Exhaust Muffler[J]. Automotive Engineering, 2006, 28(1): 51-55,63 |
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| Authors: | Ge Yunshan Zhang Hongbo Song Yanrong Tan Jianwef Zhang Xuemin Han Xiukun |
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| Affiliation: | 1. School of Vehicle and Transportation ,Beijing Institute of Technology, Beijing 100081 ; 2. Pan Asia Technical Automotive Center, Shanghai 201201 |
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| Abstract: | The noise attenuation characteristics of complex muffler are investigated by 3D finite element analysis based on the study on simple muffler.The good agreement of numerical results with test data verifies the applicability and accuracy of the finite element analysis.Maps of sound pressure level distribution inside the mufflers are given and used for studying the effect of muffler structure on the propagation of acoustic wave.And the effect of perforation length and porosity on the noise attenuation performance of complex automotive exhaust muffler is further investigated in detail. |
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| Keywords: | Noise 3D finite element analysis Automotive exhaust muffler Acoustic performance |
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