Optimization strategy for actuator and sensor placement in active structural acoustic control

Oude Nijhuis, Marco H.H. and Boer de, André (2003) Optimization strategy for actuator and sensor placement in active structural acoustic control. In: International Forum on Aeroelasticity and. Structural Dynamics, IFASD, June 4-6, 2003, Amsterdam, The Netherlands.

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Abstract:	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.
Item Type:	Conference or Workshop Item
Faculty:	Engineering Technology (CTW)
Link to this item:	http://purl.utwente.nl/publications/58844
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