圆柱滚子轴承滑动摩擦力矩的解析公式

IF 1.5 4区 工程技术 Q3 ENGINEERING, MECHANICAL
Gilbert Rivera, Patrick John Po, Chan-sik Kang, Seong-Wook Hong
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引用次数: 0

摘要

圆柱滚子轴承(CRB)以其出色的径向承载能力而著称,本文提出了一种用于分析圆柱滚子轴承(CRB)滑动摩擦力矩的改进分析公式。虽然圆柱滚子轴承中的滑动摩擦在旋转过程中通常只产生少量热源,但它与滚子轴承启动扭矩的关系却至关重要。特别是在转速较高时,当离心力发挥作用时,它们的影响会更大。其复杂性在于滚子和滚道之间的滑动摩擦力矩,这源于不均匀的表面变形。本研究考虑了 CRB 滑动摩擦力矩的两个关键方面,即滚子旋转和滚子轨道运动引起的不同滑动摩擦力矩。此外,还介绍了一种基于滚道接触区域纯滚动线(PRL)的滑动摩擦评估计算方法。该方法采用了创新的更新算法,能更精确地了解纯滚动线和滑动摩擦力矩。然后,通过对轴承制造商提供的经验公式进行比较分析,确定了所建议方法的有效性。这种比较强调了该方法作为理解和量化 CRB 内滑动摩擦力矩的有用工具的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analytical formulation for sliding friction torque in cylindrical roller bearings

This paper presents an improved analytical formulation for analyzing the sliding friction torque in cylindrical roller bearings (CRBs), which are renowned for their outstanding radial load-carrying capacity. Although sliding friction in CRBs typically employs a minor heat source during rotation, its association with the roller-bearing starting torque is vital. In particular, their impact is substantial at higher rotational speeds when the centrifugal forces come into play. The intricacy lies in the manifestation of sliding friction torque between the rollers and races, stemming from non-uniform surface deformation. Two key aspects of the CRB sliding friction torque are considered in this study, the differential sliding friction torques caused by roller rotation and roller orbital motion. Additionally, a computational method for evaluating sliding friction based on pure rolling lines (PRLs) in the race contact area is introduced. This method incorporates an innovative updating algorithm that provides more precise insights into PRLs and sliding friction torque. The effectiveness of the proposed approach was then established through a comparative analysis of the empirical formulas provided by bearing manufacturers. This comparison underscores the potential of the method as a useful tool for comprehending and quantifying sliding friction torque within CRBs.

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来源期刊
Journal of Mechanical Science and Technology
Journal of Mechanical Science and Technology 工程技术-工程:机械
CiteScore
2.90
自引率
6.20%
发文量
517
审稿时长
7.7 months
期刊介绍: The aim of the Journal of Mechanical Science and Technology is to provide an international forum for the publication and dissemination of original work that contributes to the understanding of the main and related disciplines of mechanical engineering, either empirical or theoretical. The Journal covers the whole spectrum of mechanical engineering, which includes, but is not limited to, Materials and Design Engineering, Production Engineering and Fusion Technology, Dynamics, Vibration and Control, Thermal Engineering and Fluids Engineering. Manuscripts may fall into several categories including full articles, solicited reviews or commentary, and unsolicited reviews or commentary related to the core of mechanical engineering.
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