Dynamic modeling and vibration response simulations of angular contact ball bearings with ball defects considering the three-dimensional motion of balls. (May 2017)

• Record Type: Journal Article
• Authors: Niu, Linkai; Cao, Hongrui; Xiong, Xiaoyan
• Is Part Of: Tribology international. Volume 109(2017)
• Page Start: 26
• Page End: 39
• Publication Date: 2017-05
• Subjects: Angular contact ball bearings -- Ball defect -- Bearing dynamics -- Fault diagnosis; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2016.12.011
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: A dynamic model to investigate the dynamics and vibration responses of angular contact ball bearings with ball defects is proposed. In the proposed model, each ball has 6 degrees of freedom (DOFs), meaning that the three-dimensional motion of balls is considered. The results show that whether a ball hit a race and the frequency property of the envelope spectrum largely depend on the geometrical characteristics and operating conditions. This increases the difficulty in diagnosing the ball defect when using vibration-based monitoring techniques. The current investigation suggests that the vibration response simulations should be carried out to investigate the vibration mechanism and to diagnose the ball defect more effectively. Highlights: A dynamic model to investigate the vibration responses of angular contact ball bearings with ball defects is proposed. The effects of the three-dimensional motion of balls are considered. Whether a ball defect hit a race and the frequency property of the envelope spectrum depend on geometrical characteristics and operating conditions.