Journal of Intelligent Material Systems and Structures

 

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This version was published on January 1, 2008
Journal of Intelligent Material Systems and Structures, Vol. 19, No. 1, 25-34 (2008)
DOI: 10.1177/1045389X06072753

Vibration Reduction and Power Generation with Piezoceramic Sheets Mounted to a Flexible Shaft

P.J. Sloetjes

Department of Applied Mechanics, University of Twente, 7500AE Enschede, The Netherlands, p.j.sloetjes{at}ctw.utwente.nl

A. De Boer

Department of Applied Mechanics, University of Twente, 7500AE Enschede, The Netherlands

A flexible shaft with surface-mounted piezoceramic sheets and strain sensors is considered which suffers from resonance and self-excited vibration. Frequency domain models, time domain simulations, and control experiments are used to analyze active modal damping and active modal balancing methods. The generation of electric power from cyclic straining of rotor-fixed piezoelectric material is studied and several self-powering devices for condition monitoring and vibration control are proposed.

Key Words: rotor dynamics • piezoelectric actuators • active damping • active balancing • power harvesting.


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