| 往复式压缩机吸气消声器设计 |
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| 引用本文： | 聂永红,程军圣.往复式压缩机吸气消声器设计[J].噪声与振动控制,2011,31(3):133-135. |
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| 作者姓名： | 聂永红 程军圣 |
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| 作者单位： | （ 湖南大学 汽车车身先进设计制造国家重点实验室， 长沙 410082 ） |
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| 基金项目： | 湖南大学汽车车身先进设计制造国家重点实验室自主研究课题 |
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| 摘 要： | 分析某型号压缩机吸气消声器存在的不足，在测试压缩机吸气通道噪声源频谱的基础上提出消声器改进方案。该方案通过修改消声器内部结构来提高其在吸气噪声源峰值频率处的传声损失。采用声学有限元方法对改进前后消声器方案的传声损失进行仿真，仿真结果显示改进后的消声器在低频噪声源峰值频率处取得明显效果。最后，通过装机试验对新方案消声器的降噪效果进行验证，结果表明该型号压缩机低频噪声峰值明显降低，且总噪声幅值平均降低1.4 dB(A)。
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| 关 键 词： | 声学 压缩机 有限元方法 消声器 传声损失 |
| 收稿时间： | 2010-9-3 |
| 修稿时间： | 2010-11-8 |
Suction Muffler Design of Reciprocating Compressor |
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| NIE Yong-hong,CHENG Jun-sheng.Suction Muffler Design of Reciprocating Compressor[J].Noise and Vibration Control,2011,31(3):133-135. |
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| Authors: | NIE Yong-hong CHENG Jun-sheng |
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| Affiliation: | ( State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China ) |
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| Abstract: | The disadvantages of a compressor muffler are analyzed,and a new scheme is proposed based on the measured noise spectrum at the suction inlet of the compressor.By modifying its inner structure,the transmission loss of the new muffler at the peak frequencies of noise source is to be enhanced.The original and new mufflers are simulated by acoustic finite element method(FEM)to verify the transmission loss.Results of simulations show that the new muffler is effective at the peak frequencies of low-frequency noi... |
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| Keywords: | acoustics compressor finite element method muffler transmission loss |
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