2108. Free vibration properties of rotate vector reducer

Chuan Chen1, Yuhu Yang2

School of Mechanical Engineering, Tianjin University, Tianjin, 300072, P. R. China

1Corresponding author

E-mail: 1chenchuan1985728@126.com, 2jasoney9527@163.com

Received 30 November 2015; received in revised form 4 March 2016; accepted 22 April 2016

DOI https://doi.org/10.21595/jve.2016.16677

Abstract. For RV reducer widely used in Robots, this work develops a lumped parameter model to investigate free vibration properties of general description. The dynamic model admits three planar degrees of freedom for each component and includes key factors affecting vibration such as involute and cycloid gear mesh stiffness, crankshaft bending stiffness and bearing stiffness. For the linear case, examine of the associated eigenvalue problem reveals the specific structure of vibration modes. The modes are classified into three types: rotational, translational, and planetary component modes. All vibration modes fall into one of these three categories. The unique properties of each type is examined which is analytically verified with candidate mode method. Furthermore, the work investigates effects of parameters, which include stiffness, mass, moment of inertia and crankshaft eccentricity, on natural frequencies of three vibration modes and crankshaft eccentricity is in particular scrutinized. It is helpful for understanding the relationship between parameters and vibration modes.

Keywords: RV reducer, free vibration, vibration mode.

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Cite this article

Chen Chuan, Yang Yuhu Free vibration properties of rotate vector reducer. Journal of Vibroengineering, Vol. 18, Issue 5, 2016, p. 3089‑3103.

 

© JVE International Ltd. Journal of Vibroengineering. Aug 2016, Vol. 18, Issue 5. ISSN 1392-8716