Damping of a composite driveshaft

Hany Ghoneim; Duncan J. Lawrie

doi:10.1117/12.597313

16 May 2005 Damping of a composite driveshaft

Hany Ghoneim, Duncan J. Lawrie

Proceedings Volume 5760, Smart Structures and Materials 2005: Damping and Isolation; (2005) https://doi.org/10.1117/12.597313
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

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.

Citation Download Citation

Hany Ghoneim and Duncan J. Lawrie "Damping of a composite driveshaft", Proc. SPIE 5760, Smart Structures and Materials 2005: Damping and Isolation, (16 May 2005); https://doi.org/10.1117/12.597313

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