Optimisation strategies for decentralized ASAC

In decentralised velocity feedback control of structures, the configuration of collocated sensor/actuator pairs has a large influence on the attainable reduction in vibration and sound radiation. In the field of active structural acoustic control, the understanding of the physical phenomena involved in the fluid-structure interaction is important. This paper presents a comparison of optimisation techniques for the placement of multiple sensor/actuator pairs. The goal of the controller is to achieve the maximum reduction of kinetic energy or total radiated sound power. The techniques are applied on a rectangular simply supported plate with varying numbers of sensor/actuator pairs.