| 汽车排气消声器的消声性能研究 |
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| 引用本文： | 陈永新,陈剑,饶建渊. 汽车排气消声器的消声性能研究[J]. 汽车工程, 2009, 31(4) |
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| 作者姓名： | 陈永新 陈剑 饶建渊 |
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| 作者单位： | 1. 合肥工业大学博士后流动站,合肥230009;安徽江淮汽车博士后工作站,合肥,230022
2. 合肥工业大学博士后流动站,合肥,230009 |
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| 基金项目： | 安徽省科技攻关计划重大科技专项基金 |
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| 摘 要： | 建立某汽车排气消声器的声学分析模型,采用有限元法和边界元法对排气消声器的传递损失进行了仿真分析和试验测试.试验结果与仿真结果能较好吻合,表明排气消声器的仿真模型很好地反映了实际结构的声学特性.根据研究结果提出改进方案,取得了较好的效果.
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| 关 键 词： | 消声器 传递损失 有限元法 边界元法 排气噪声 |
A Study on the Noise Attenuation Performance of Automotive Exhaust Muffler |
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| Chen Yongxin,Chen Jian,Rao Jianyuan. A Study on the Noise Attenuation Performance of Automotive Exhaust Muffler[J]. Automotive Engineering, 2009, 31(4) |
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| Authors: | Chen Yongxin Chen Jian Rao Jianyuan |
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| Affiliation: | Chen Yongxin1,2,Chen Jian2 & Rao Jianyuan21.Postdoctoral Mobile Centre,Hefei University of Technology,Hefei 230009,2.Postdoctoral Work Centre,Anhui Jianghuai Automobile Co.,Ltd,Hefei 230022 |
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| Abstract: | The acoustic analysis model for an automotive exhaust muffler is built,and the transmission loss of exhaust muffler is measured by test and also simulated by using both FEM and BEM.Simulation results quite coincide with test ones,showing that the simulation model well reflects the acoustic characteristics of the real structure of exhaust muffler.An improvement scheme is proposed based on the results of study with good effects acquired. |
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| Keywords: | muffler transmission loss FEM BEM exhaust noise |
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