Song Kongjie

Zhang Bing

Sun Lingling

Sun Yuguo

School of Mechanical Engineering, Shandong University,
Jinan 250061, China

Abstract: Passive-active control of a flexible isolation system is investigated from the viewpoint of power flow. Dynamic transfer equations of the system are deduced based on a matrix method which uses mobility or impedance representations of three substructures: the source of vibration, the receiver and the mounting system which connects the source to the receiver. The cancellation of axial input forces to the receiver is considered as the active control strategy and its effects are discussed. The results of the study show that the strategy adopted herein can effectively reduce the power transmitted to the receiver.

Key words: Flexible isolation system  Power flow  Active control