Chaotic Dynamics of Cage Behavior in a High-Speed Cylindrical Roller Bearing

This paper presents a mathematical model to investigate the nonlinear dynamic behavior of cage in high-speed cylindrical bearing. Variations of cage behavior due to varying cage eccentricity and cage guidance gap are observed. Hydrodynamic behavior in cage contacts is taken into consideration for a more realistic calculation of acting forces owing to high working speed. Analysis of real-time cage dynamic behavior on radial plane is carried out using chaos theory based on the theoretical and mathematical model established in the paper. The analytical results of this paper provide a solid foundation for designing and manufacturing of high-speed cylindrical roller bearing.

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Influence of Lubricant Traction Coefficient on Cage's Nonlinear Dynamic Behavior in High-Speed Cylindrical Roller Bearing

Journal of Tribology ◽

10.1115/1.4036274 ◽

2017 ◽

Vol 139 (6) ◽

Cited By ~ 8

Author(s):

Wenhu Zhang ◽

Sier Deng ◽

Guoding Chen ◽

Yongcun Cui

Keyword(s):

Dynamic Response ◽

Dynamic Behavior ◽

Nonlinear Dynamic ◽

High Speed ◽

Roller Bearing ◽

Mass Center ◽

Nonlinear Dynamic Response ◽

Traction Coefficient ◽

Cylindrical Roller Bearing ◽

Cylindrical Roller

In this paper, the formulas of elastohydrodynamic traction coefficients of four Chinese aviation lubricating oils, namely, 4109, 4106, 4050, and 4010, were obtained by a great number of elastohydrodynamic traction tests. The nonlinear dynamics differential equations of high-speed cylindrical roller bearing were built on the basis of dynamic theory of rolling bearings and solved by Hilber–Hughes–Taylor (HHT) integer algorithm with variable step. The influence of lubricant traction coefficient on cage's nonlinear dynamic behavior was investigated, and Poincaré map was used to analyze the influence of four types of aviation lubricating oils on the nonlinear dynamic response of cage's mass center. The period of nonlinear dynamic response of cage's mass center was used to assess cage's stability. The results of this paper provide the theoretical basis for selection of aviation lubricating oil.

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Skidding research of a high-speed cylindrical roller bearing with beveled cage pockets

Industrial Lubrication and Tribology ◽

10.1108/ilt-10-2019-0414 ◽

2020 ◽

Vol 72 (7) ◽

pp. 969-976

Author(s):

Yanbin Liu ◽

Zhanli Zhang

Keyword(s):

Peer Review ◽

Tilt Angle ◽

High Speed ◽

Hydrodynamic Lubrication ◽

Roller Bearing ◽

Front Wall ◽

Dynamics Model ◽

Content Type ◽

Cylindrical Roller Bearing ◽

Cylindrical Roller

Purpose This study aims to uncover the influencing mechanism of the tilt angles of the cage pocket walls of the high-speed cylindrical roller bearing on the bearing skidding. Design/methodology/approach A novel cylindrical roller bearing with the beveled cage pockets was proposed. Using the Hertz contact theory and the elastohydrodynamic and hydrodynamic lubrication formulas, the contact models of the bearing were built. Using the multibody kinematics and the Newton–Euler dynamics theory, a dynamics model of the bearing was established. Using the Runge–Kutta integration method, the dynamics simulations and analysis of the bearing were performed. Findings The simulation results show that the effects of the tilt angles of the front and rear walls of the pocket on the bearing skidding are remarkable. Under a 5° tilt angle of the front wall of the pocket and a 10° tilt angle of the rear wall, the bearing skidding can be effectively decreased in the rotational speed range of 10,000-70,000 r/min. Originality/value In this paper, a novel cylindrical roller bearing with the beveled cage pockets was proposed; a dynamics model of the bearing was established; the influence mechanism of the tilt angles of the front and rear walls of the pocket on the bearing skidding was investigated, which can provide fundamental theory basis for optimizing the pocket. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-01-2020-0035/

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Stiffness Analysis of High-speed Cylindrical Roller Bearing Subjected to Combined Loads

10.1109/phm-nanjing52125.2021.9613096 ◽

2021 ◽

Author(s):

Yaoyu Han ◽

Lihua Yang ◽

Tengfei Xu ◽

Endian Xu

Keyword(s):

High Speed ◽

Roller Bearing ◽

Stiffness Analysis ◽

Combined Loads ◽

Cylindrical Roller Bearing ◽

Cylindrical Roller

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Experimental Study on the Skidding Damage of a Cylindrical Roller Bearing

Materials ◽

10.3390/ma13184075 ◽

2020 ◽

Vol 13 (18) ◽

pp. 4075 ◽

Cited By ~ 1

Author(s):

Qing Zhang ◽

Jun Luo ◽

Xiang-yu Xie ◽

Jin Xu ◽

Zhen-huan Ye

Keyword(s):

High Speed ◽

Large Scale ◽

Failure Modes ◽

Roller Bearing ◽

Weight Ratio ◽

Operating Conditions ◽

Roller Bearings ◽

Light Load ◽

Cylindrical Roller Bearing ◽

Cylindrical Roller

As large-scale rotating machines develop toward high rotating speed and high power–weight ratio, skidding damage has become one of the major initial failure modes of cylindrical roller bearings. Therefore, understanding the skidding damage law is an effective way to ensure the safety of machines supported by cylindrical roller bearings. To realize the skidding damage, a high-speed rolling bearing test rig that can simulate the actual operating conditions of aviation bearings was used in this paper, and the skidding damage dynamic behaviors of cylindrical roller bearings were investigated. In addition, to ensure the accuracy of the obtained skidding damage mechanism, the cylindrical roller bearing was carefully inspected by microscopic analysis when the skidding damage occurred. Out results show that instantaneous increases in friction torque, vibration acceleration, and temperature are clearly observed when the skidding damage occurs in the cylindrical roller bearing. Furthermore, under the conditions of inadequate lubrication and light load, the critical speed of skidding damage is rather low. The major wear mechanisms of skidding damage include oxidation wear, abrasive wear, and delamination wear. The white layers are found locally in the inner ring and rollers under the actions of friction heat and shear force.

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