期刊
MECHANISM AND MACHINE THEORY
卷 46, 期 4, 页码 466-478出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechmachtheory.2010.11.016
关键词
Geared rotor bearing system; Dynamic backlash; Friction; Time varying stiffness; Dynamic meshing force
资金
- National Science Foundation of China (NSFC) [50875263]
- National Basic Research Program of China [2011CB706800]
Effects of the friction and dynamic backlash on the multi-degree of freedom nonlinear dynamic gear transmission system, which incorporate time varying stiffness, are investigated. Firstly, the relationship between gear central distance error and backlash is deduced and the dynamic backlash is defined, subsequently a multi-degree of freedom nonlinear dynamic gear transmission system is developed with dynamic backlash, friction and time varying stiffness. The nonlinear dynamic system is solved by the Runge-Kutta method. The results show that the friction force may enlarge the displacement magnitude and affect the high frequency parts significantly in frequency domain at low speed. But the RMS of the steady response is reduced on the effect of friction. The difference between the constant backlash and the dynamic backlash models is also discussed. The system may enter into previous chaotic motion due to the effect of dynamic backlash. Finally, no impact motion, single-side impact motion and double-side impact motion are also predicted in the new dynamic backlash model. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.
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