Analysis on Multimode Nonlinear Resonance of an Asymmetric Rolling Bearing Rotor with the Application of a Squeeze Film Damper

Chen, Huizheng; Zhong, Shun; Lu, Zhenyong; Chen, Yushu; Liu, Xiyu

doi:10.1155/2021/4370981

Cited by 2 publications

(1 citation statement)

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“…Because elastic supports are used in few applications, mainly in aero-engine spindles to reduce critical speed, and most of the research literature on elastic supports takes rotor support system as the research object, mainly analyzing the dynamic characteristics of rotor under elastic support, [31][32][33][34] there are few studies on the impact of elastic supports on rolling bearing dynamics.…”

Section: Introductionmentioning

confidence: 99%

Theoretical analysis of vibration characteristics of high-speed cylindrical roller bearing with groove elastic supports

Sun,

Jiang,

Liu

et al. 2024

Advances in Mechanical Engineering

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As a necessary support system of high-speed rotor system, the roller bearing with elastic support’s vibration characteristics directly affect the stability and safety of rotor system. At this point, the theoretical analysis of bearing performance under the assumption of rigid ring is obviously no longer applicable. In this paper, considering the elastic deformation of both cylindrical roller bearing outer ring and the groove elastic support, the dynamic differential equations of cylindrical roller bearing with the elastic support are established on the basis of rolling bearing dynamics, and the bearing’s vibration under different working conditions is analyzed. The theoretical analysis results show that the groove elastic support can effectively reduce the radial vibration of cylindrical roller bearing under high speed and large radial load. And the experimental results show that the test’s vibration is consistent with the simulation’s vibration, which proves the reliability of the dynamic model of cylindrical roller bearing with the groove elastic support proposed in this paper. This research gives a new method for improving the dynamic characteristics of high-speed cylindrical roller bearings, and the model presented in this paper provides a theoretical basis for the design and manufacture of cylindrical roller bearing with elastic support.

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Section: Introductionmentioning

confidence: 99%