Vibration-controlling mechanism and controlling effectiveness of plate with piezoelectric network

The given electromechanical coupled kinetic equations of the plate with piezoelectric network were solved by decomposing the responses into linear combination of sub-modal piezoelectric systems' responses. Through the research of the response behaviors of sub-modal piezoelectric systems when the coupled system was stimulated by a pulse, it is found that there are two different ways for the coupled system to dominate their vibration. The optimal electrical parameters of sub-modal piezoelectric systems were found through the analysis of transfer functions. Based on that, one of the sub-modal piezoelectric systems was set optimally; In this condition, the response behaviors of all sub-modal piezoelectric systems and the multiple-mode controlling effectiveness of the system were studied. The results show that the plate with piezoelectric network has the capacity to suppress multimode vibration; Particularly, when one modal requires higher control effect, this system with parallel resistor and inductor can satisfy the aforementioned request.