直通穿孔管消声器与横流穿孔管消声器消声性能对比研究 |
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引用本文: | 马勇,钟成,张洪涛.直通穿孔管消声器与横流穿孔管消声器消声性能对比研究[J].山东农机,2012(1):40-42,45. |
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作者姓名: | 马勇 钟成 张洪涛 |
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作者单位: | [1]广西工学院汽车工程系,广西柳州545006 [2]柳州五菱柳机动力有限公司,广西柳州545000 |
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摘 要: | 采用三维声学软件Sysnoise对比分析直通穿孔消声器与横流穿孔消声器的传递损失。应用Mechel公式降低穿孔管消声器模型的复杂性,通过施加阻尼边界条件对穿孔管进行模拟。得出结论:穿孔率和穿孔半径相同时,横流穿孔管消声器的消声性能明显优于直通穿孔管消声器,但是横流穿孔消声器的阻力损失比较大。通过本研究可以为消声器的设计和选用提供依据。
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关 键 词: | 传递损失 Sysnoise 穿孔管 消声器 边界条件 |
The Contrast of Straight-through Perforated Tube Mufflers with Transverse-flow Perforated Tube Mufflers |
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Authors: | Ma Yong Zhong Cheng Zhang Hongtao |
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Institution: | 1. Automobile Engineering Department, Guangxi University of Technology, Liuzhou 545006, China; 2. Liuzhou Wuling Liuji Power Co., Ltd., Liuzhou 545000, China) |
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Abstract: | In this paper,comparisons of transmission loss between straight-through perforated tube mufflers and transverse-flow perforated tube mufflers is analyzed by 3-Dimension acoustic software-Sysnoise. Mechel formula is applied to reduce the complexity of the model of perforated tube mufflers, and impedance boundary conditions is imposed. The results reflect:at the same porosity and perforation diameter,the acoustic attenuation performance of transverse-flow perforated tube muffler is better than straight-through perforated tube muffler, but the resistance loss of transverse-flow perforated tube muffler is larger. |
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Keywords: | transmission loss Sysnoise perforated tube muffler boundary condition |
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