基于弹性薄板的浮筏隔振系统振动传递研究

摘要

The model of a floating raft isolation system based on the elastic thin plate was established through substructure synthesis method .Theoretical solution of the multi‐excitation system was obtained .The corresponding finite element model was set up in ANSYS , the solutions by FEM and theory analysis were compared to demonstrate the reliability of the theoretical model .On this basis ,the influences of phase difference ,amplitude difference and multi direction excitation on the system response were analyzed .%采用子结构综合法建立了基于弹性薄板的浮筏隔振系统模型，推导了多源激励下系统理论响应解，同时通过ANSYS建立对应有限元模型，对比分析两种方法所得响应解，从而论证理论模型的可靠性。在此基础上，分析了机组间激振力的相位差、幅值差异以及多方向激励对系统位移响应的影响。