【作者】 王国治； 李良碧； 温华兵；

【Author】 Wang Guozhi Li Liangbi Wen Huabing (Research Institute of Vibration & Noise, East China Shipbuilding Institute Zhenjiang, 212003)

【机构】 华东船舶工业学院振动噪声研究所；

【摘要】 以船舶机械的浮筏隔振为背景,针对影响隔振系统功率流的结构与材料因素,在有限元模态分析的基础上推导了功率流灵敏度的分析方法。通过船舶结构模型的功率流灵敏度的具体计算与分析,讨论了隔振系统的结构刚度、质量以及材料阻尼等参数对隔振效果的影响。文中通过船模试验,验证了理论分析得出的结论,对船舶浮筏隔振系统设计方向进行了探讨。更多还原

【Abstract】 A sensitivity analysis method for the energy flow in vibration isolation system was deduced in this paper based on the concept of the floating raft isolation in shps. The influences of both structure and material on the transmission of vibration energy were considered in the process. Through the calculation of the sensitivity of the energy flow via the sturctural parameters of a ship model, the influences of the supporting stiffness, the mass of the foundation, the damping of the raft on the isolation efficiency were investigated. The conclusions derived from the theoretical analysis were verified through the experiments on a steel ship model and the right way to the design of the floating raft system was explored.更多还原