Abstract
Nowadays, given the widespread use of rolling bearings in mechanical applications, an important topic is investigate which parameters influence their wear in order to estimate the real bearing life. The cage is one of the critical element in the bearing, its dynamics is complex and nonlinear due to the intermittent contacts with various elements (e.g. balls and races) with a resulting not regular trajectory of its center that can lead to the cage failure. While the races have a simple rotational motion, the balls usually have a more complex dynamics due to the stick-slip motion and the action of the external contact forces. In this work a lumped model of the cage is presented focusing of its possible kind of motions: cage in free-flight (just inertial and Coriolis forces act on it), race contact, balls contact, race and balls contact. A numerical code is developed taking into account a three DOFs model for the cage, contacts and lubrication.The goal of this work is to identify the most important parameters influencing the motion and the life of the cage. Furthermore, some chaotic aspects in the dynamics of the bearing are investigated to understand their influence on the cage failure.
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References
Kingsbury E, Walker R (1994) Motions of an unstable retainer in an instrument ball bearing. ASME Trans J Tribol 202:202–208
Boesiger EA, Donley AD, Loewenthal S (1992) An analytical and experimental investigation of ball bearing retainer instabilities. ASME Trans J Tribol 114:530–539
Kannel JW (1978) A simplified model of cage motion in angular contact bearings operating in the EHD lubrification regime. ASME Trans J Lubr Technol 100:395–403
Walters CT (1971) The dynamics of ball bearings. ASME Trans J Lubr Technol 93:1–10
Johnson KL (1985) Contact mechanics. Cambridge University Press, Cambridge
Acknowledgements
This research is supported by European Space Agency ESA-ESTEC, The Netherlands.
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© 2016 The Society for Experimental Mechanics, Inc.
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Neglia, S.G., Culla, A., Fregolent, A. (2016). Bearing Cage Dynamics: Cage Failure and Bearing Life Estimation. In: Kerschen, G. (eds) Nonlinear Dynamics, Volume 1. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-15221-9_43
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DOI: https://doi.org/10.1007/978-3-319-15221-9_43
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-15220-2
Online ISBN: 978-3-319-15221-9
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