Title :
Optimizing the performance of piezoelectric actuators for active vibration control
Author :
Kermani, M.R. ; Moallem, M. ; Patel, R.V.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Western Ontario, London, Ont., Canada
Abstract :
This paper discusses the selection process for piezoelectric transducers (PZT) used as actuator elements for suppressing vibrations in a flexible beam system. The effects of changing physical parameters such as the relative thickness of the piezoelectric ceramic with respect to the beam, the optimum location of the PZT actuator, and the length of the PZT are studied based on the singular value decomposition of the controllability Grammian of the resulting system. A model for a clamped-mass cantilevered beam is developed and its frequency response is compared with that obtained experimentally. Simulation results are given to illustrate how this method can be used to determine physical properties and location of the PZT actuator. Further experimental studies are currently being performed
Keywords :
controllability; optimal control; piezoelectric actuators; singular value decomposition; vibration control; PZT actuator; active vibration control; actuator elements; clamped-mass cantilevered beam; controllability Grammian; flexible beam system; frequency response; performance optimization; piezoelectric actuators; piezoelectric transducers; singular value decomposition; vibration suppression; Ceramics; Controllability; Equations; Flexible structures; Payloads; Piezoelectric actuators; Piezoelectric transducers; Shape; Structural beams; Vibration control;
Conference_Titel :
Robotics and Automation, 2002. Proceedings. ICRA '02. IEEE International Conference on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-7272-7
DOI :
10.1109/ROBOT.2002.1013587
