张建国;谢兴旺;曲永辉

山东华源莱动内燃机有限公司

    摘要：设计建成了一个消声器模拟试验台,可对各种排气消声器进行消声性能测试。通过在有、无气流两种情况下的消声性能试验,研究了气流速度对消声性能的影响。就消声器的内部结构尺寸及形状对消声性能的影响进行了试验研究,通过对比分析总结了不同结构参数对消声性能的影响。

    关键词： 消声器;;气流;;消声量;;压力损失

    Abstract: A muffler simulating test-bed is designed and built to conduct experiments of the sound eliminating performance of the exhaust mufflers.The contrast experiments of the mufflers with and without airflow are done for the systemic study of the effect of airflow on the sound elimination performance.The effect of different structure parameters on the muffler performance is summarized through comparative analysis.

    Keywords: Muffler;Air flow;Noise Reduction;Pressure Loss

参考文献：

[1]刘丽萍,肖福明.扩张式消声器气流噪声的试验研究.机械工程学报,2002,38(1):98-100

[2]杨庆佛.内燃机噪声控制.太原:山西人民出版社,1985