Transfer Of Power Flow And Vibration Voice Control Strategy For The Complex Vibration Isolation System

To investigate the dynamic transmission mechanism and control strategy of the flexible isolation system from the viewpoint of power flow is one of the leading research issues in the field of vibration and noise control. The dynamics model, generic characteristic of power flow transmission and active control for the machine-foundation dynamic coupled system is investigated theoretically, which is encircled by the core of power flow transmission and control. The main contents and contributions in the dissertation are as follows:The power flow transmission function is established in one stage passive flexible isolation system under multiple excitations. The effects of all kinds of structural parameters on the function is studied, especially the flexibility of the foundation.The dynamic model of floating raft vibration isolation system is established. The effects of vibration isolation are estimated from the viewpoint of power flow, and then the effects of structural parameters on power flow transmission are studied.The integrated passive and active control of power flow transmission in the flexible isolation system was studied. By using of substructure mobility technique, the expression of power flow input base is derived of the one stage flexible isolation system using electromagnetic actuator. Then the transfer characteristics about the system are studied.The expression of power flow input base and general dynamic transfer equations are derived on the active floating raft vibration isolation system, and then power flow optimal strategy is proposed based on the optimal control object of power flow transfer to base.At last, a few assume of the applying the intelligent control theory to the field of vibratory noise control is given.