Title :
H∞ control of noise in a 3-D structural acoustic system
Author :
Banks, H.T. ; Demetriou, M.A. ; Smith, R.C.
Author_Institution :
Center for Res. in Sci. Comput., North Carolina State Univ., Raleigh, NC, USA
Abstract :
The performance of a PDE-based control technology for reducing sound pressure levels in structural acoustic systems is numerically investigated in this paper. In such systems, structural vibrations couple with an adjacent acoustic field to produce unwanted noise. The actuators are taken to be piezoceramic patches bonded to the structure. In response to an input voltage, the patches can be used to attenuate vibration levels in a manner which reduces sound pressure levels in the adjacent acoustic field. The performance of an H∞/minmax compensator is investigated here with numerical simulations presented to demonstrate resulting attenuation levels
Keywords :
acoustic variables control; acoustics; active noise control; minimax techniques; optimal control; partial differential equations; piezoceramics; piezoelectric actuators; structural acoustics; 3D structural acoustic system; H∞ noise control; H∞/minmax compensator; PDE-based control technology; piezoceramic actuators; piezoceramic patches; sound pressure levels; vibration level attenuation; Acoustic noise; Actuators; Attenuation; Bonding; Control systems; Minimax techniques; Numerical simulation; Piezoelectric materials; Pressure control; Voltage;
Conference_Titel :
Decision and Control, 1995., Proceedings of the 34th IEEE Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-2685-7
DOI :
10.1109/CDC.1995.479171
