Contact trajectory of angular contact ball bearings under dynamic operating condition.pdfVIP

Contact trajectory of angular contact ball bearings under dynamic operating condition.pdf

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Contact trajectory of angular contact ball bearings under dynamic operating condition.pdf

Tribology International 104 (2016) 247–262 Contents lists available at ScienceDirect Tribology International journal homepage: /locate/triboint Contact trajectory of angular contact ball bearings under dynamic operating condition H. Xi a,b, H.Y. Wang c, W. Han b,d, Y. Le b,d, H. Xu a,b, W. Chen a, S.N. Xu b, F.C. Wang a,d,e,n a iBT Group, School of Mechanical Engineering, Xi’an Jiaotong University, China b Institute of Bearing Manufacturing Technology of Shizuishan, Ningxia, China c School of Mechanical Engineering, Swansea University, United Kingdom d School of Mechanical Engineering, Wuhan University of Science Technology, China e Institute of Bearing Technology, United Manufacturing Group, United Kingdom article info Article history: Received 29 June 2016 Received in revised form 26 August 2016 Accepted 30 August 2016 Available online 31 August 2016 Keywords: Angular contact ball bearings Contact trajectory Dynamics Axial and radial loading abstract A contact trajectory model of ball bearings under the dynamic condition was developed by the means of the development of the integrated multi-body dynamics and multi-freedom kinematics with the multiinterfacial contact mechanics. Subsequently, the general methodology was employed to investigate the dynamic contact performance of ball bearings, particularly for the contact trajectory along the raceways due to each ball against the inner and outer raceways. It was found that the radial loading and inner ring misalignment could lead to the deviation of the contact trajectory on the raceways. The variation of contact angle could bring into the correspondence with the deviation of the contact trajectory on the raceways. The oscillation frequency of the contact trajectory on the outer raceway was higher than one on the inner raceway either under the axial and radial loading or misalignment condition. 2016 Published by Elsevier Ltd. 1. Introduction Ball bearings are widely applied to various machineries in most branches of

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