Identification of dynamic coupling coefficients in a structure with piezoceramic sensors and actuators
Abstract
During the past few years, bonded and embedded piezoceramic sensors and actuators are being considered for active vibration control of structures. Development of optimal control procedures requires an accurate knowledge of the parameters of the active structural dynamic system, including the values of dynamic coupling coefficients that represent the efficiency of energy transfer from the piezoceramic material to the structure. In this paper an identification procedure is discussed to identify these coupling coefficients and other parameters in a closed loop system consisting of a linear elastic beam, bonded piezoceramic sensors, piezoceramic actuators and a signal conditioning system. The developed procedure has been validated by using experimentally generated results for specific cases.
- Publication:
-
29th Structures, Structural Dynamics and Materials Conference
- Pub Date:
- 1988
- Bibcode:
- 1988ssdm.conf.1611H
- Keywords:
-
- Coupling Coefficients;
- Dynamical Systems;
- Elastic Bodies;
- Piezoelectric Ceramics;
- Structural Vibration;
- Vibration Damping;
- Actuators;
- Beams (Supports);
- Electronic Filters;
- Matrices (Mathematics);
- Parameter Identification;
- Instrumentation and Photography