并联扩张腔消声器的声学性能研究

发布时间：2018-03-20 02:12

  本文选题：高阶模态波　切入点：扩张腔　出处：《煤炭技术》2017年09期 　论文类型：期刊论文

【摘要】：利用声学仿真软件Virtual.Lab对单扩张腔和并联多腔消声器做了仿真分析,同时应用数学工具计算得到了单扩张腔在平面波理论下的传递损失。将单扩张腔的仿真结果与理论传递损失作了对比,分析了高阶模态波的传播对于消声器声学性能的影响;又进一步对比了多腔并联消声器与单扩张腔的声学性能。
[Abstract]:The acoustic simulation software Virtual.Lab is used to simulate and analyze the single expansion cavity and parallel multi-cavity muffler. At the same time, the transfer loss of a single expanded cavity under plane wave theory is calculated by using mathematical tools. The simulation results of a single expanded cavity are compared with the theoretical transfer loss, and the influence of the propagation of higher-order mode waves on the acoustic performance of the muffler is analyzed. The acoustic performance of parallel muffler with multi-cavity is compared with that of single expansion cavity.
【作者单位】： 太原理工大学机械工程学院;
【分类号】：TB535.2;TD72
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本文编号：1637037