Active Vibration Control of a Plate Using Piezoelectric Sensors and Loudspeakers

The aerospace industry demands high-performance aircraft structures, which has led to the need for low-cost, effective vibration control methods. In this study, the loudspeaker was modified as inertial actuator for vibration control. Furthermore, the piezoelectric ceramic was integrated into the proposed inertial actuator as sensor. The proposed integrated actuator/sensor overcomes the shortcomings of traditional velocity negative feedback control method. Experimental analysis demonstrates the feasibility and effectiveness of the proposed transducer. Significant vibration reduction can be experimentally obtained in wide frequency range. The control circuit is simple and cost-effective. The innovation of this study lies in the proposal and experimental validation of a novel transducer, which has important implications for improving aircraft vibration performance and provides new ideas and methods for vibration control research in the aerospace field.