Investigation on dynamic behaviors of the cage in cylindrical roller bearings based on nonlinear dynamic model with lubrication and cage whirling

IF 2.8 3区工程技术 Q2 MECHANICS International Journal of Non-Linear Mechanics Pub Date : 2024-08-30 DOI:10.1016/j.ijnonlinmec.2024.104887

Xinzhuo Zhang, Ruixuan Gao, Yongsheng Zhu, Qiang Tang, Ke Yan, Jun Hong

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Abstract

The dynamic characteristics of the cages of cylindrical roller bearings (CRBs) significantly impact the service life of the bearings. This paper considers the lubrication between the roller and cage and the effect of cage whirling and establishes an accurate CRBs nonlinear dynamic model. On this basis, the correlation between the stability of the cage centroid trajectory, cage sliding characteristics, and bearing operating parameters is elaborated on. In addition, the influence of structural parameters, such as the number of rollers and pocket clearance, on the dynamic characteristics of the bearing system is also investigated. The results indicate that in the design stage of CRBs, it is essential to ensure a reasonable number of rollers and a smaller cage clearance ratio to reduce the slippage rate and enhance the stability of the bearing cage. Furthermore, during the usage stage of CRBs, changes in load or rotational speed operating parameters can lead to cage whirling. However, the stability of the cage whirling under the former condition is higher than that under the latter. Therefore, it is necessary to fully consider the reasonable rotational speed and load conditions to prevent premature damage to the cage.

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基于润滑和保持架旋转的非线性动态模型的圆柱滚子轴承保持架动态行为研究

圆柱滚子轴承（CRB）保持架的动态特性对轴承的使用寿命有很大影响。本文考虑了滚子和保持架之间的润滑以及保持架旋转的影响，建立了精确的 CRB 非线性动态模型。在此基础上，阐述了保持架中心轨迹稳定性、保持架滑动特性和轴承运行参数之间的相关性。此外，还研究了结构参数（如滚子数量和袋间隙）对轴承系统动态特性的影响。结果表明，在 CRB 的设计阶段，必须确保合理的滚子数量和较小的保持架间隙比，以降低滑移率并增强轴承保持架的稳定性。此外，在 CRB 的使用阶段，载荷或转速运行参数的变化会导致保持架旋转。然而，前一种情况下保持架旋转的稳定性要高于后一种情况。因此，有必要充分考虑合理的转速和负载条件，以防止保持架过早损坏。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Non-Linear Mechanics 物理-力学

CiteScore

5.50

自引率

9.40%

发文量

192

审稿时长

67 days

期刊介绍： The International Journal of Non-Linear Mechanics provides a specific medium for dissemination of high-quality research results in the various areas of theoretical, applied, and experimental mechanics of solids, fluids, structures, and systems where the phenomena are inherently non-linear. The journal brings together original results in non-linear problems in elasticity, plasticity, dynamics, vibrations, wave-propagation, rheology, fluid-structure interaction systems, stability, biomechanics, micro- and nano-structures, materials, metamaterials, and in other diverse areas. Papers may be analytical, computational or experimental in nature. Treatments of non-linear differential equations wherein solutions and properties of solutions are emphasized but physical aspects are not adequately relevant, will not be considered for possible publication. Both deterministic and stochastic approaches are fostered. Contributions pertaining to both established and emerging fields are encouraged.