Title :
Active noise control: piezoceramic actuators in fluid/structure interaction models
Author :
Banks, H.T. ; Fang, W. ; Smith, R.C.
Author_Institution :
Center for Appl. Math. Sci., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
A model for a 2D acoustic cavity with a flexible boundary (a beam) controlled via piezoceramic patches producing bending moments in the beam is considered. The associated control problem for this fluid/structure interaction system to reduce the acoustic pressure in the cavity involves unbounded control inputs. Approximation methods in the context of an LQR state space formulation are discussed, and numerical results are presented to demonstrate the effectiveness of this approach in computing feedback controls for noise reduction
Keywords :
feedback; noise abatement; optimal control; piezoelectric actuators; state-space methods; 2D acoustic cavity; LQR state space; active noise control; bending moments; feedback; fluid/structure interaction models; noise reduction; piezoceramic actuators; Acoustic beams; Acoustic noise; Active noise reduction; Actuators; Approximation methods; Control systems; Feedback control; Piezoelectric materials; Pressure control; State-space methods;
Conference_Titel :
Decision and Control, 1991., Proceedings of the 30th IEEE Conference on
Conference_Location :
Brighton
Print_ISBN :
0-7803-0450-0
DOI :
10.1109/CDC.1991.261588
