| 单腔扩张式消声器传声特性的有限元分析 |
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| 引用本文： | 蓝军,杜海明. 单腔扩张式消声器传声特性的有限元分析[J]. 小型内燃机与摩托车, 2001, 30(2): 37-40 |
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| 作者姓名： | 蓝军 杜海明 |
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| 作者单位： | 1. 天津大学天津内燃机研究所
2. 浙江新昌柴油机总厂 |
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| 摘 要： | 对单腔扩张式消声器传声特性进行了有限元分析，与一维平面波法的分析结果进行了比较，结果表明，无论是频率成分还是消声器，二维有限元分析结果较一维平面波分析的精度有了进一步提高，另外从二维有限肖声器内声压场分布和粘滞性气体声压起伏能量耗散的角度，讨论了声压场对系统消声特性的影响。
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| 关 键 词： | 单腔扩张式消声器 传声特性 有限元法 声压场 内燃机 |
| 修稿时间： | 2000-11-15 |
Finite Element Analysis of Single Cavity Expansion Silencer |
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| LAN Jun,Du Haiming. Finite Element Analysis of Single Cavity Expansion Silencer[J]. Small Internal Combustion Engine and Motorcycle, 2001, 30(2): 37-40 |
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| Authors: | LAN Jun Du Haiming |
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| Affiliation: | Tianjin 300072 |
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| Abstract: | The transfer properties of single cavity exhaust silencer are calculated using finite element method and the results are compared with one dimension planar wave calculation results.The results show that the precision is higher than that of one dimension planer wave calculation on the exhaust silencer frequency property and the muffling magnitude.The results also show that the sound pressure field distribution and the viscosity of gas also affect the properties of exhaust silencer. |
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| Keywords: | Single cavity expansion silencer Transfer Property Finite element method Sound Pressure field |
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