多腔穿孔管消声器传递损失参数灵敏度分析

发布时间：2018-04-29 10:48

本文选题：穿孔管消声器 + 传递损失　；参考：《声学技术》2017年01期

【摘要】：传递损失作为穿孔管消声器声学性能的评价指标,可以采用有限元法计算。文章提出数值联合仿真方法计算其传递损失,并与试验结果进行对比验证。进而采用该方法结合正交实验法研究多腔穿孔管消声器传递损失参数灵敏度。研究结果表明,数值联合仿真方法可以准确计算穿孔管消声器传递损失,比传统方法节省2/3的时间。在中频段,进出口管半径、扩张腔半径和第一腔结构参数对多腔穿孔管消声器传递损失影响明显。
[Abstract]:Transmission loss can be calculated by finite element method as an evaluation index of acoustic performance of perforated tube muffler. In this paper, a combined numerical simulation method is proposed to calculate the transfer loss, and the results are compared with the experimental results. Furthermore, the sensitivity of transmission loss parameters of multi-cavity perforated tube muffler is studied by using this method and orthogonal experiment. The results show that the combined numerical simulation method can accurately calculate the transmission loss of the perforated tube muffler and save 2 / 3 of the time compared with the traditional method. In the middle frequency band, the radius of the inlet and outlet tube, the radius of the expanded cavity and the structure parameters of the first cavity have a significant effect on the transmission loss of the muffler in the multi-cavity perforated tube.
【作者单位】：武汉软件工程职业学院;江苏理工学院;北京欧鹏巴赫新能源科技股份有限公司;
【基金】：湖北省职教学会2015年度科学研究项目(ZJGB201512) 常州市科技计划资助项目(CE20155056)
【分类号】：TB535.2

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