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

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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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