Planetary gears are parametrically excited by the time-varying mesh stiffness that fluctuates as the number of gear tooth pairs in contact changes during gear rotation. At resonance, the resulting vibration causes tooth separation leading to nonlinear effects such as jump phenomena and subharmonic resonance. This work examines the nonlinear dynamics of planetary gears by numerical and analytical methods over the meaningful mesh frequency ranges. Concise, closed-form approximations for the dynamic response are obtained by perturbation analysis. The analytical solutions give insight into the nonlinear dynamics and the impact of system parameters on dynamic response. Correlation between the amplitude of response and external torque demonstrates that tooth separation occurs even under large torque. The harmonic balance method with arclength continuation confirms the perturbation solutions. The accuracy of the analytical and harmonic balance solutions is evaluated by parallel finite element and numerical integration simulations.
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April 2011
Research Papers
Analytical Solution for the Nonlinear Dynamics of Planetary Gears
Cheon-Jae Bahk,
Cheon-Jae Bahk
Department of Mechanical Engineering,
Ohio State University
, 201 West 19th Avenue, Columbus, OH 43210
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Robert G. Parker
Robert G. Parker
Ohio State University, Professor
State Key Laboratory for Mechanical Systems and Vibration, University of Michigan-Shanghai Jiao Tong University Joint Institute,
e-mail: parker.242@osu.edu
Shanghai Jiao Tong University
, Shanghai 200240, China
Search for other works by this author on:
Cheon-Jae Bahk
Department of Mechanical Engineering,
Ohio State University
, 201 West 19th Avenue, Columbus, OH 43210
Robert G. Parker
Ohio State University, Professor
State Key Laboratory for Mechanical Systems and Vibration, University of Michigan-Shanghai Jiao Tong University Joint Institute,
Shanghai Jiao Tong University
, Shanghai 200240, Chinae-mail: parker.242@osu.edu
J. Comput. Nonlinear Dynam. Apr 2011, 6(2): 021007 (15 pages)
Published Online: October 22, 2010
Article history
Received:
October 30, 2009
Revised:
May 16, 2010
Online:
October 22, 2010
Published:
October 22, 2010
Citation
Bahk, C., and Parker, R. G. (October 22, 2010). "Analytical Solution for the Nonlinear Dynamics of Planetary Gears." ASME. J. Comput. Nonlinear Dynam. April 2011; 6(2): 021007. https://doi.org/10.1115/1.4002392
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