二次隔振中质量比的研究

Research on Mass Ratio in the Secondary Vibration Isolation

在减振降噪治理工程中应用二次隔振降低固体传声,可以起到较理想的效果。二次隔振系统固有频率低,可以隔绝低频振动。研究激振频率比与质量比的关系,得出产生共振的质量比范围,通过实例计算得出隔振效率与质量比的关系。

The secondary vibration isolation may be used to abate sound transmission in solid in the application of damping and noise reduction treatment engineering, which can have an ideal effect. The secondary vibration isolation system has a low natural frequency so it can isolate low frequency vibration. Resonant mass ratio range may be abtained by way of research on the relationship between frequency ratio and mass ratio. The relationship between vibration isolation efficiency and mass ratio may be figured out through the example.