Time-Varying Wear Behavior of CuSn12Ni2 Used for Sliding Planet Gear Bearings During Mixed Lubrication: Experiments and Modeling

IF 2.9 3区工程技术 Q2 ENGINEERING, CHEMICAL

Tribology Letters Pub Date : 2025-01-07 DOI:10.1007/s11249-024-01956-z

Fan Zhang, Lingfeng Cheng, Yuechang Wang, Lei Chen, Jianmei Wang

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引用次数: 0

Abstract

The application study of sliding bearings in planetary gearboxes of wind turbines has drawn much attention in recent years. However, the heavy-load and low-velocity working conditions will lead to serious wear of bearings that will affect service performance and life. CuSn12Ni2, a competitive material for such situations, is evaluated to reveal the time-varying wear behavior in this paper on a typical ball-on-disk testing rig. Furthermore, a wear model was proposed by the dimensional analysis theory. The results show that CuSn12Ni2 represents a lower friction coefficient and wear rate during the varying test duration under 90 ℃ than at room temperature, and 10 to 30 min can be considered to be the transition zone, marking the shift from a severe running-in stage to a relatively stable, rapid running-in stage. The wear surface of CuSn12Ni2 is dominated by abrasive wear and adhesive wear, accompanied by fatigue wear and tribochemical reaction at high temperature. However, the evolution model of the wear width and depth changing with wear duration is given in explicit form, and the adjusted R² is no less than 0.99. These time-varying wear data and models are meaningful for constructing the time-varying life evaluation model of sliding planet gear bearings.

Graphical abstract

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滑动行星齿轮轴承用CuSn12Ni2混合润滑时变磨损行为：实验与建模

滑动轴承在风力发电机行星齿轮箱中的应用研究近年来备受关注。然而，重载和低速工作条件将导致轴承严重磨损，从而影响使用性能和寿命。CuSn12Ni2是这种情况下的竞争材料，本文在一个典型的球盘测试台上评估了CuSn12Ni2的时变磨损行为。在此基础上，利用量纲分析理论建立了磨损模型。结果表明：在90℃下，CuSn12Ni2在不同试验时间内的摩擦系数和磨损率均低于室温，10 ~ 30 min为过渡区，标志着从剧烈磨合阶段向相对稳定、快速磨合阶段转变；CuSn12Ni2的磨损表面以磨粒磨损和粘着磨损为主，并伴有疲劳磨损和高温摩擦化学反应。而磨损宽度和深度随磨损持续时间变化的演化模型以显式形式给出，调整后的R2不小于0.99。这些时变磨损数据和模型对于构建滑动行星齿轮轴承时变寿命评估模型具有重要意义。图形抽象

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

Tribology Letters 工程技术-工程：化工

CiteScore

5.30

自引率

9.40%

发文量

116

审稿时长

2.5 months

期刊介绍： Tribology Letters is devoted to the development of the science of tribology and its applications, particularly focusing on publishing high-quality papers at the forefront of tribological science and that address the fundamentals of friction, lubrication, wear, or adhesion. The journal facilitates communication and exchange of seminal ideas among thousands of practitioners who are engaged worldwide in the pursuit of tribology-based science and technology.