On the behavior and force transmissibility of a cable network isolator

The cable network is being paid increased attention and has found application in practice as a new type of vibration isolator. Modal properties and isolation performance are important considerations for the widespread use of network isolators. In contrast with previous experiments on structural synthesis methods, this paper presents an analytical method to obtain the characteristic equation of a network structure. This method is extended to investigate the modal properties, forced vibration and vibration transmissibility of a network isolation system. In addition, the validity of these analytical modal solutions is verified by an independent finite element method. Modal properties and forced vibrations of cable networks with different configurations are examined. The important system parameters are identified and their effect on the system behavior is discussed.

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