浮筏隔振系统的传递功率流研究

Investigation on the Power Flow Transmission of Floating Raft system

针对实际工程中浮筏装置的隔振性能评估,推导了一种用于浮筏隔振系统传递功率流计算的新方法,并利用本方法进行实例计算,预测各子系统联接界面或耦合点的功率流,描绘各耦合界面的传递功率谱。分析浮筏安装非对称性、机组振幅比对传递功率流的影响。

A new approach is introduced in this paper to study the dynamic characteristics of an twostage vibration isolation system from the viewpoint of power flow. A uniform form of transfer matrix equations of different substructures is adopted here to represent their dynamic behavior, which makes it easy to deduce the transmitting power flow of each interface between the substructures. To demonstrate the effectiveness of the new approach, the power flow transmission of a flexible floating raft isolation system is illustrated. The effects of the asymmetrical installation and the amplitude ratio of the machines on the power spectra are discussed.