【摘要】 本文运用有限元超单元降阶模型对浮筏隔振系统进行建模 ,通过分析计算探讨了 (1)浮筏中间筏架的质量 (尤其是质量比较小时 ) ;(2 )浮筏中间筏架的刚度 (尤其是筏架刚度较小时 ) ;(3)浮筏中间筏架的结构阻尼和装置中的阻尼器的阻尼 ;它们对整个浮筏隔振性能的影响 ,从中得出一些有益的结论。更多还原

【Abstract】 The reduced finite element model of the floating raft isolation system is established to investigate the influence of different parameters,including:(1)mass of raft frame,especially for the little mass raft frame;(2)stiffness of raft frame,especially for the low stiffness raft frame;(3)damping of the raft frame and kind of dampers,on the isolation characteristics of the floating raft isolation system.The results are of benefit to the design of a real floating raft isolation system.更多还原