【摘要】 利用容器可以有效地消除压缩机管道系统内的气流脉动,从而达到消除管道机械振动的目的。但是,如果设置不当则会引起管道内的气柱共振,给机械振动提供更加巨大的激振力。在利用容器消除其它机械的空气动力性噪声方面也存在同样的问题。本文分析了容器消减气流脉动的机理,说明了怎样设置容器才能取得良好的消振消声效果,指出衰减器有效性评价准则中存在的问题,并通过实验验证了本文的主要结论。更多还原

【Abstract】 By means of containers we can effectively eliminate gas pulsations and mechanical vibrations in the pipe system of compressors. But unsuitable volume or location of the container may result in reson anse of the gas columu in the pipe, that supplies a more tremendous force to the mechanical vibration. The same problem should be noticed in utilizing containers to eliminate aeromechanic noises of other machines. This paper analyses the mechanism of utilizing container for eliminating gas pulsation, explains how to design containers to obtain good result in eliminating vibrations and noises, points out that criteria of evaluating the effectiveness of pressure pulsation muffler are worthless, and verifies the principal conclusions of this paper by experiment,更多还原