Dynamic analysis of localized defects in rolling bearing systems

Mengmeng Song1, Shungen Xiao2, Lixia Huang3, Wanxiang Li4

1, 2, 3, 4College of Information, Mechanical and Electrical Engineering, Ningde Normal University,
Ningde, People’s Republic of China

2School of Mechatronical Engineering and Automation, Shanghai University,
Shanghai, People’s Republic of China

2Corresponding author

E-mail: 1544824964@qq.com, 2xiaoshungen022@163.com, 353730851@qq.com, 4wanxiang1217@foxmail.com

Received 30 July 2017; accepted 14 September 2017

DOI https://doi.org/10.21595/vp.2017.18914

 

Abstract. In this paper, the dynamics of rolling bearing with localized defects of the outer ring and rolling element are investigated. In order to study the nonlinear dynamical behaviors of the rolling bearing precisely, a novel dynamic model of the rolling bearing is established based on the Lagrangian approach. By setting 0.2 mm, 0.4 mm and 0.6 mm local defects on the outer ring and rolling element of bearing respectively, the results demonstrate that the amplitude of the rolling bearing is more intense as the local defect size increases, and the acceleration amplitude fluctuation is more significant than the velocity. In addition, in the case of the same defect size, the vibration of the rolling element defect is more intense than the vibration response caused by the outer ring defect.

Keywords: rolling bearing, dynamics, localized defects, outer ring, rolling element.

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Cite this article

Song Mengmeng, Xiao Shungen, Huang Lixia, Li Wanxiang Dynamic analysis of localized defects in rolling bearing systems. Vibroengineering PROCEDIA, Vol. 14, 2017, p. 34‑39.

 

© JVE International Ltd. Vibroengineering PROCEDIA. Oct 2017, Vol. 14. ISSN 2345-0533