本文从传统的隔振效果的评价入手,指出其在工程实践应用中的局限性.而后应用机械阻抗概念,系统推证设备阻抗和支承结构阻抗是怎样影响隔振效果的.且指出,当设备的阻抗比起支承结构的阻抗来讲是同一量级或更大时,隔离器的作用就下降.给出提高隔离器效果应采用的措施.同时还对传递率、插入损失及传递损失三者之间的关系进行了讨论. This article starts with the evaluation of the traditional vibration isolation effect and points out its limitation in engineering application. Then, the concept of mechanical impedance is applied to verify the influence of equipment impedance and supporting structure impedance on vibration isolation effect. Of the same magnitude or greater than the impedances of the supporting structure, the effect of the isolator is reduced, and the measures to be taken to improve the isolator effect are given, and the transfer rate, insertion loss and transfer loss The relationship between the discussion.