- Title
- Spatial ϰ₂ control of a piezoelectric laminate beam: experimental implementation
- Creator
- Halim, Dunant; Moheimani, S. O. Reza
- Relation
- IEEE Transactions on Control Systems Technology Vol. 10, Issue 4, p. 533-546
- Publisher Link
- http://dx.doi.org/10.1109/TCST.2002.1014673
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2002
- Description
- This paper designs and experimentally evaluates the performance of a feedback controller to suppress vibration of a flexible beam. The controller is designed to minimize the spatial ϰ₂ norm of the closed-loop system to ensure average reduction of vibration throughout the entire structure. Vibrations of the first six bending modes of the beam are controlled 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 ϰ₂ control has an advantage over the pointwise ϰ₂ control in minimizing the vibration of the entire structure. The spatial ϰ₂ controller minimizes the ϰ₂ norm of the entire structure more uniformly, while the pointwise ϰ₂ controller only has a local effect. The implemented spatial ϰ₂ controller is able to minimize the first six bending modes of the beam effectively. This spatial ϰ₂ control can also be applied to more general structural vibration suppression problems.
- Subject
- electric sensing devices; performance evaluation; piezoelectric actuators; piezoelectric oscillations; closed loop systems
- Identifier
- http://hdl.handle.net/1959.13/27207
- Identifier
- uon:1467
- Identifier
- ISSN:1063-6536
- Rights
- Copyright © 2002 IEEE. Reprinted from IEEE Transactions on Control Systems Technology, 10, 4, 533-546. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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