Abstract
This paper considers active control of the sound transmission loss of a flexible panel partitioning an open space. A control strategy presented in the work comprises both active and passive control for the purpose of minimizing the total acoustic power transmitted from a panel excited acoustically from the other side, hence hybrid control. First, the sound field system produced by a double-leaf wall with air space acoustically excited is described. Cluster control is then employed, the system state being expressed. Moreover, the optimal control law for minimizing the total acoustic power is derived. Finally, both of a numerical analysis and an experiment are conducted, clarifying the control performance.
