Rao, AK and Natesan, Kannan and Bhat, M Seetharama and Ganguli, Ranjan (2008) Experimental Demonstration of H{infty} Control based Active Vibration Suppression in Composite Fin-tip of Aircraft using Optimally Placed Piezoelectric Patch Actuators. In: Journal of Intelligent Material Systems and Structures, 19 (6). 651-669.
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The goal of this study is the multi-mode structural vibration control in the composite fin-tip of an aircraft. Structural model of the composite fin-tip with surface bonded piezoelectric actuators is developed using the finite element method. The finite element model is updated experimentally to reflect the natural frequencies and mode shapes accurately. A model order reduction technique is employed for reducing the finite element structural matrices before developing the controller. Particle swarm based evolutionary optimization technique is used for optimal placement of piezoelectric patch actuators and accelerometer sensors to suppress vibration. H{infty} based active vibration controllers are designed directly in the discrete domain and implemented using dSpace® (DS-1005) electronic signal processing boards. Significant vibration suppression in the multiple bending modes of interest is experimentally demonstrated for sinusoidal and band limited white noise forcing functions.
| Item Type: | Journal Article |
|---|---|
| Publication: | Journal of Intelligent Material Systems and Structures |
| Publisher: | Sage Publications |
| Additional Information: | Copyright of this article belongs to Sage Publications. |
| Keywords: | vibration control;optimal placement;robust control;particle swarm optimization;model order reduction;piezoelectric. |
| Department/Centre: | Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering) |
| Date Deposited: | 29 Mar 2010 10:33 |
| Last Modified: | 29 Mar 2010 10:33 |
| URI: | http://eprints.iisc.ac.in/id/eprint/26377 |
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