Active vibration cancellation of tonal disturbance using orthogonal eigenstructure control
Name
Rastgaar-2009-Active vibration cancellation of tonal disturbance using orthogonal eigenstructure control.pdf
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377.84 KB
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Author(s)
Rastgaar Aagaah, Mohammad
Ahmadian, M.
Southward, C.
Date Issued
April 2009
Journal
Proceedings of SPIE--the International Society for Optical Engineering
Publisher
Society of Photo-Optical Instrumentation Engineers
Citation
Rastgaar, M., M. Ahmadian, and S. C. Southward. “Active vibration cancellation of tonal disturbance using orthogonal eigenstructure control.” Active and Passive Smart Structures and Integrated Systems 2009. Ed. Mehdi Ahmadian & Mehrdad N. Ghasemi-Nejhad. San Diego, CA, USA: SPIE, 2009. 728823-9. © 2009 SPIE
Version
Final published version
Abstract
Orthogonal Eigenstructure Control (OEC) is a novel control method that can be used for active vibration cancellation. OEC is an output feedback control method applicable to multiple-input, multiple-output linear systems. In this paper, application of OEC for active vibration cancellation in a plate is presented. A steel plate clamped at four edges is used as a test plate and piezoelectric actuators are used as control actuators. Accelerometers are used for measuring the acceleration and displacement at ten locations on the plate. A tonal disturbance with a frequency of 150 Hz is applied to the plate by an electromagnetic actuator. After identification of the state-space model of the plate, orthogonal eigenstructure control is used to find the control gains that decouple the modes of vibrations and reduce transferring of vibrational energy between them. The results show significant vibration suppression throughout the plate.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1117/12.815639
