Title :
A piezoelectric actuator model for active vibration and noise control in thin cylindrical shells
Author :
Banks, H.T. ; Lester, H.C. ; Smith, R.C.
Author_Institution :
Center for Res. in Sci. Comput., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A model describing the interaction between a piezoelectric patch and a thin cylindrical shell is presented. The patch is assumed to be curved and the coupling between bending and in-plane deformations, which is due to the curvature, is retained. Through moment and force balancing, the shell loading due to activation of the patch can be expressed in terms of material properties of the patch and shell (thickness, elastic properties, and Poisson ratios), the radius of curvature of the shell, and the voltage being applied to the patch. This provides a model which can be used in a variety of structural acoustics control applications
Keywords :
Poisson ratio; adaptive control; elasticity; intelligent actuators; intelligent structures; noise abatement; piezoelectric actuators; stress analysis; stress-strain relations; structural acoustics; vibration control; Donnell-Mushtars model; Poisson ratios; active noise control; active vibration control; elastic properties; force balancing; intelligent structures; interaction; moment balancing; piezoelectric actuator model; piezoelectric patch; radius of curvature; stress-strain relations; structural acoustics control; thickness; thin cylindrical shells; Acoustic applications; Acoustic noise; Active noise reduction; Capacitive sensors; Couplings; Material properties; NASA; Optimal control; Piezoelectric actuators; Piezoelectric materials; Vibration control; Voltage;
Conference_Titel :
Decision and Control, 1992., Proceedings of the 31st IEEE Conference on
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0872-7
DOI :
10.1109/CDC.1992.371119
