Title :
Passivity-based robust control of piezo-actuated flexible beam
Author :
Gosavi, Shekhar V. ; Kelkar, A.G.
Author_Institution :
Dept. of Mech. Eng., Kansas State Univ., Manhattan, KS, USA
Abstract :
This paper presents results on the passivity-based control of piezo-actuated flexible beam. The flexible beam considered is a cantilever aluminum beam with piezoelectric transducer as an actuator and accelerometer as a sensor placed at the tip. Using Lagrangian formulation and the assumed modes approach a finite dimensional analytical model is derived which compares very well with the identified model. The simulation and experimental results demonstrate that passivity-based controller is very effective in vibration suppression, and is robust to parametric uncertainties and unmodeled dynamics
Keywords :
accelerometers; flexible structures; multidimensional systems; piezoelectric actuators; robust control; uncertain systems; vibration control; Lagrangian formulation; accelerometer; actuator; cantilever aluminum beam; finite dimensional analytical model; parametric uncertainties; passivity-based robust control; piezo-actuated flexible beam; piezoelectric transducer; robustness; unmodeled dynamics; vibration suppression; Accelerometers; Aluminum; Analytical models; Lagrangian functions; Piezoelectric actuators; Piezoelectric transducers; Robust control; Structural beams; Uncertainty; Vibration control;
Conference_Titel :
American Control Conference, 2001. Proceedings of the 2001
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-6495-3
DOI :
10.1109/ACC.2001.946127
