Average Energy Transfer Characteristics and Control Strategy of Active Feedback Sound Insulation for Water-Filled Acoustic System Based on Double-Layer Plate Structure

The double-layer plate structure in passive sound insulation systems can improve the high-frequency performance, but it is still not ideal low-frequency region. actuator of active system adjust stiffness and damping real time, with strong adaptability adjustability. Therefore, this paper, actuators feedback control strategy are applied to a performance water-filled acoustic cavity system. theoretical model established for cavity. average energy transfer used as an evaluation index effect system, calculation method derived. Then, MATLAB numerical simulation analyze six parameters on Finally, concluded that when within effective range, all methods produce significant effects range some narrow.