筏架和基座特性对浮筏隔振效果的影响

Influences on isolation effectiveness of a generator set and raft vibration isolation system

从浮筏隔振系统中各子系统的广义四端参数矩阵入手,推导振级落差的计算方法。在此基础上,以某型发电机组浮筏隔振装置及其船体基座为研究对象,进行数值仿真,探讨筏架与基座对隔振效果的影响。结果表明,基座结构会对隔振效果产生较大的影响,而筏架结构对隔振效果的影响较小。

An approach is deduced to calculate vibration level difference in accordance with the generalized four-pole parametric matrices of each subsystem in the raft vibration isolation system. With a generator set and raft vibration isolation system and its base as the object of the research,numerical simulations are carried out,and the influences of raft and base on isolation effectiveness are discussed. The results indicate that,the base has a greater influence on isolation effectiveness,but the influence of raft is small.