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Proceedings Paper

Damping of a composite driveshaft
Author(s): Hany Ghoneim; Duncan J. Lawrie
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Paper Abstract

An approach for introducing damping to the flexural vibration of rotating shafts is presented. The idea of the approach is simple and the implementation is novel. The idea is to introduce viscoelastic angular spring at the boundaries. The spring would stiffen up and damp out the bending fluctuation, and therefore would increase the frequency range of operation and alleviate the vibration amplitudes in the vicinity of resonance of the shaft. The idea is implemented by introducing carbon/polyurethane composite hyperboloid couplings at the boundaries (ends) of the shaft. The mathematical model of the coupling is developed and solved, using finite element, for the fundamental flexural natural frequency and associated loss factor. From the results, the merits and feasibility of applying the flexible coupling to alleviate the flexural vibration of rotating shafts are addressed.

Paper Details

Date Published: 16 May 2005
PDF: 9 pages
Proc. SPIE 5760, Smart Structures and Materials 2005: Damping and Isolation, (16 May 2005); doi: 10.1117/12.597313
Show Author Affiliations
Hany Ghoneim, Rochester Institute of Technology (United States)
Duncan J. Lawrie, Lawrie Technology, Inc. (United States)

Published in SPIE Proceedings Vol. 5760:
Smart Structures and Materials 2005: Damping and Isolation
Kon-Well Wang, Editor(s)

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