Experiments on spatial H/sub 2/ control for vibration suppression of a piezoelectric laminate beam
- Resource Type
- Conference
- Authors
- Halim, D.; Reza Moheimani, S.O.
- Source
- Proceedings of the 40th IEEE Conference on Decision and Control (Cat. No.01CH37228) Decision and control Decision and Control, 2001. Proceedings of the 40th IEEE Conference on. 4:3860-3865 vol.4 2001
- Subject
- Robotics and Control Systems
Computing and Processing
Vibration control
Laminates
Voltage
Flexible structures
Modal analysis
Piezoelectric actuators
Control systems
Adaptive control
Control design
Design engineering
- Language
This paper designs and experimentally evaluates the performance of a feedback controller for vibration suppression of a flexible beam. The controller is designed to minimize the spatial H/sub 2/ norm of the closed-loop system to ensure average reduction of vibration throughout the entire structure. In this work, the controller is designed to suppress the vibrations of the first six bending modes of the beam using a collocated piezoelectric actuator-sensor pair attached to the beam. Feedthrough terms are incorporated into the flexible-structure model to correct the locations of the in-bandwidth zeros. It is shown that the spatial H/sub 2/ control has an advantage over the pointwise H/sub 2/ control in minimizing the vibration of the entire structure. This control design methodology can be applied to more general structural vibration suppression problems.