中文摘要：

本文将Helmholtz共振吸声结构应用于压缩机降噪与振动控制中,研究了共振吸声阵列结构的设计理论,并设计和加工了相应的扩压器和管道实验器。通过多方案的对比实验,验证了设计理论的正确性和实验器的有效性。研究发现,Helmholtz吸声阵列结构对管道高频振动起到很好的抑制作用,且几乎不影响压缩机的工作效率。对高频宽范围内噪声起到了很好的消减作用,可以对声致破坏进行有效治理。最高可降低声压级约26d B,最低也在7d B左右,平均声压级可降低约10d B。

英文摘要：

For this paper,the Helmholtz resonance sound absorption structure was applied to the compressor in order to reduce noise and control vibrations. The design theory of the array structure＇s resonance absorption is studied, so the diffuser and experimental pipe apparatus are designed and processed. By comparing several schemes, the validity of the design theory and the experimental apparatus were verified. It was found that the Helmholtz sound absorption structure could control the high frequency pipe vibrations without any effect on the working efficiency the compressor＇s. The structure is helpful for govering damage caused by sound,especially noises at high frequency ranges.The maximum sound pressure reduced is close to 26 d B, and the minimum is about7 d B.The average amount of reduced sound pressure is more than 10 d B. Further more,the need for the Helmholtz resonance sound absorption structure is suggested in actual engineering products.