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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (10): 1784-1789    DOI: 10.3785/j.issn.1008-973X.2012.10.008
机械与能源工程     
空滤器滤芯声学特性的仿真方法
刘联鋆, 郝志勇, 钱欣怡
浙江大学 能源工程系, 浙江 杭州 310027
Simulation methods for acoustical characteristics of
air-cleaner filter element
LIU Lian-yun, HAO Zhi-yong, QIAN Xin-yi
Department of Power Engineering, Zhejiang University, Hangzhou 310027, China
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摘要：

 通过实验测量装有滤芯的滤芯安置装置的消声量,结合声学有限元仿真方法,确定滤芯的声学特性参数.结果显示,采用有限元法可以用来分析滤芯声学特性.应用计算流体动力学（CFD）法计算不带滤芯和带滤芯时滤芯安置装置及空滤器的消声量,不带滤芯时采用CFD法得到的计算结果与测量结果吻合良好,带滤芯时采用CFD法得到的计算结果比有限元法计算结果误差更大.研究采用有限元法和CFD法分析滤芯声学特性时的特点,提出基于CFD法的提取和设置滤芯声学特性参数的工程方法.
Abstract:

The noise reduction of the filter-setting equipment with a filter element in it was measured to determine the acoustical parameters of the filter element, by combining with finite element method (FEM). Results show that FEM can be used to analyze the acoustical properties of the filter element. A computational fluid dynamics (CFD) approach was employed to calculate noise reductions of both the filter-equipment and an air-cleaner with and without the filter element. The CFD-calculated results agreed well with the measured results when the filter element was not installed. However, when the filter element was installed, the CFD-calculated result showed greater error than the FEM-calculated results. Features of the FEM and CFD approach of analyzing acoustical properties of the filter element were analyzed. A CFD-based engineering approach was proposed to determine and set acoustical parameters of a filter element.
出版日期: 2012-10-01
:  TK 402  
基金资助:

浙江省科技厅公益技术研究工业资助项目（2010C31G2010175）；国家“十二五”科技支撑资助项目（2011BAE22B05）.
通讯作者: 郝志勇，男，教授.     E-mail: haozy@zju.edu.cn
作者简介: 刘联鋆（1988—），男，博士生，从事进排气系统CAE分析和优化设计的研究. E-mail: liulianyun1988@yahoo.com.cn
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引用本文:

刘联鋆, 郝志勇, 钱欣怡. 空滤器滤芯声学特性的仿真方法[J]. J4, 2012, 46(10): 1784-1789.

LIU Lian-yun, HAO Zhi-yong, QIAN Xin-yi. Simulation methods for acoustical characteristics of
air-cleaner filter element. J4, 2012, 46(10): 1784-1789.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.10.008    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I10/1784

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