In active structural acoustic control the goal is to reduce the sound radiation of a structure by means of changing the vibrational behaviour of that structure. The performance of such an active control system is to a large extent determined by the locations of the actuators and sensors. In this work an approach is presented for the optimization of the actuator and sensor locations. The approach combines a numerical modelling technique, for predicting the control performance, and genetic optimization, to find the optimal actuator and sensor locations. The approach is tested for a setup consisting of clamped rectangular plate with a piezoelectric actuator and either structural or acoustic sensors. The results show that a control system with optimal actuator and sensor configuration outperforms an arbitrary chosen configuration in terms of reduction in radiated sound power.
|Title of host publication||International Forum on Aeroelasticity and Structural Dynamics 2003|
|Place of Publication||Amsterdam|
|Publisher||Nederlandse Vereniging voor Luchtvaarttechniek|
|Number of pages||11|
|Publication status||Published - 4 Jun 2003|
Oude nijhuis, M. H. H., & de Boer, A. (2003). Optimization strategy for actuator and sensor placement in active structural acoustic control. In International Forum on Aeroelasticity and Structural Dynamics 2003 (pp. -). Amsterdam: Nederlandse Vereniging voor Luchtvaarttechniek.