Transient responses of a 2-dof torsional system with nonlinear dry friction under a harmonically varying normal load

The effects of a harmonically varying normal load on transient responses of a two-degree-of-freedom torsional system, with nonlinear dry friction and under sinusoidal torque excitation, are reported. An approximate analytical solution for pure slip-type transients is first obtained and confirmed wit...

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Bibliographic Details
Published in:Journal of sound and vibration 2005-08, Vol.285 (4), p.1223-1234
Main Authors: Duan, Chengwu, Singh, Rajendra
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Mechanical contact (friction...)
Physics
Solid mechanics
Structural and continuum mechanics
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Summary:The effects of a harmonically varying normal load on transient responses of a two-degree-of-freedom torsional system, with nonlinear dry friction and under sinusoidal torque excitation, are reported. An approximate analytical solution for pure slip-type transients is first obtained and confirmed with computational studies. Although the negative slope in friction–velocity characteristics introduces substantial stick-slip motions, a well-tuned normal load could possibly attenuate such motions. Key parameters controlling the engagement rate are identified.
ISSN:0022-460X
1095-8568
DOI:10.1016/j.jsv.2004.11.004