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An Experimental and Analytical Investigation Into Friction-Induced Vibrations and Parameters Affecting Its Occurrence

[+] Author Affiliations
A. Bahzad, A. M. A. El-Butch, A. F. Fahim

Helwan University, Cairo, Egypt

M. O. A. Mokhtar

Cairo University, Giza, Egypt

Paper No. IMECE2010-38560, pp. 49-57; 9 pages
doi:10.1115/IMECE2010-38560
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 13: Sound, Vibration and Design
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4450-2
  • Copyright © 2010 by ASME

abstract

The condition for the occurrence of friction-induced vibrations is examined numerically and experimentally based on a single degree of freedom system with different friction models that relates the friction force with the relative interface speed. In this study the dimensionless parameters which control the occurrence of stick-slip motion are investigated, it is found that some of these parameters results in the occurrence of stick-slip motion while others are acting to avoid it. The equations governing the occurrence of friction-induced vibrations are derived in dimensionless form and solved numerically in order to have both high accuracy and reducing the number of the system parameters. The attained numerical results are validated by the comparison with the experimental results. Results also showed that damping ratio, speed, load factor, the used friction models and excitation frequency greatly affecting the occurrence of stick-slip motion.

Copyright © 2010 by ASME
Topics: Friction , Vibration

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