Title :
Piezoelectric actuators and sensors location for active control of flexible structures
Author :
Leleu, Sylvaine ; Abou-Kandil, Hisham ; Bonnassieux, Yvan
Author_Institution :
Lab. d´´Electricite, Signaux et Robotique, Ecole Normale Superieure de Cachan, France
fDate :
12/1/2001 12:00:00 AM
Abstract :
A method for optimal positioning of piezoelectric actuators and sensors on a flexible structure is presented. First, a two-dimensional (2-D) model of a piezoelectric actuator bonded to a plate is obtained. Then, a Ritz formulation is used to find a state model of the system in view of its control. To define an optimal positioning strategy, an energy based approach is developed. This leads quite naturally to the study of controllability and observability properties of the overall dynamical model. A new criterion based on energy assessment is proposed to locate actuators and sensors
Keywords :
controllability; damping; flexible structures; modelling; observability; optimisation; piezoelectric actuators; piezoelectric transducers; vibration control; 2D model; Ritz formulation; active control; controllability properties; dynamical model; energy based approach; flexible structures; observability properties; optimal positioning; piezoelectric actuator location; piezoelectric sensor location; state model; vibration damping; Bonding; Controllability; Damping; Flexible structures; Mechanical sensors; Observability; Piezoelectric actuators; Sensor phenomena and characterization; Stress; Vibrations;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
