Title :
Noise control in a 3-D structural acoustic system: numerical and experimental implementation of a PDE-based methodology
Author :
Banks, H.T. ; Smith, Ralph C. ; Wang, Yun ; Brown, D.E. ; Metcalf, Vern L. ; Silcox, R.J.
Author_Institution :
Center for Res. in Sci. Comput., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The implementation of a PDE-based feedback control methodology for structural and structural acoustic systems is discussed in this paper. Control in these systems is obtained via piezoceramic patches on the structure which generate bending moments in response to an applied out of-phase voltage. The incorporation of the patches in a typical structural acoustic system is described by a fully coupled PDE model. The method is then implemented by using data measurements to obtain state estimates (via a compensator) which are then multipled by a feedback gain to obtain controlling voltages
Keywords :
acoustic noise; acoustic variables control; active noise control; feedback; linear quadratic control; noise abatement; partial differential equations; state estimation; structural acoustics; 3D structural acoustic system; bending moments; feedback control; feedback gain; linear quadratic control; noise control; partial differential equations; piezoceramic patches; state estimates; structural acoustic systems; Acoustic measurements; Acoustic noise; Active noise reduction; Control systems; Feedback control; Laboratories; NASA; Piezoelectric materials; State estimation; Voltage control;
Conference_Titel :
Decision and Control, 1994., Proceedings of the 33rd IEEE Conference on
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
0-7803-1968-0
DOI :
10.1109/CDC.1994.410912
