Page 35 - 摩擦学学报2025年第10期

第 45 卷 第 10 期 摩擦学学报（中英文） Vol 45 No 10
2025 年 10 月 Tribology Oct, 2025

DOI: 10.16078/j.tribology.2024153 CSTR: 32261.14.j.tribology.2024153
高冰鉴, 李京洋, 李长江, 王学强, 经贵如, 李飞, 白鹏鹏, 田煜. 悬臂梁支撑摩擦副沿轴向双向滑动摩擦行为规律研究[J]. 摩擦
学学报（中英文）, 2025, 45(10): 1432−1441. GAO Bingjian, LI Jingyang, LI Changjiang, WANG Xueqiang, JING Guiru, LI Fei,
BAI Pengpeng, TIAN Yu. Behavior of Cantilever Beam-Supported Friction Pairs in Bidirectional Axial Sliding[J]. Tribology, 2025,
45(10): 1432−1441.

悬臂梁支撑摩擦副沿轴向双向滑动

摩擦行为规律研究

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高冰鉴 , 李京洋 , 李长江 , 王学强 , 经贵如 , 李 飞 , 白鹏鹏 , 田 煜 1*
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(1. 清华大学 高端装备界面科学与技术全国重点实验室，北京 100084；
2. 上海宇航系统工程研究所，上海 201109)
摘 要: 针对在导电滑环中广泛应用的悬臂梁支撑摩擦副的摩擦行为开展了研究，进行了悬臂梁-平面接触副在垂
直方向位置固定和相对运动方向平行于悬臂梁长轴情形下的双向滑动摩擦磨损试验，并验证了法向力与摩擦力的
相关性与不同滑动方向对二者的影响规律. 基于材料力学特性分析与摩擦磨损试验结果表明：摩擦副在沿悬臂梁长
轴方向进行双向滑动时，法向力和摩擦力大小随相对运动方向改变有显著变化，接触区法向力与摩擦力近似呈线
性负相关，且比例系数主要取决于悬臂梁固定端与水平方向的夹角. 此外，摩擦副沿悬臂梁长轴方向压缩悬臂梁的
相对运动具有比拉伸方向更高的动态法向力、摩擦力和磨损量. 相关结果可为类似悬臂梁支撑结构沿轴向的正反
向滑动摩擦学行为的规律与机理提供理论参考.
关键词: 悬臂梁支撑; 轴向运动; 双向滑动; 摩擦力-法向力耦合; 小变形假设
中图分类号: TH117.1 文献标志码: A 文章编号: 1004-0595(2025)10–1432–10

Behavior of Cantilever Beam-Supported Friction Pairs in

Bidirectional Axial Sliding

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GAO Bingjian , LI Jingyang , LI Changjiang , WANG Xueqiang , JING Guiru ,
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LI Fei , BAI Pengpeng , TIAN Yu 1*
(1. State Key Laboratory of Tribology in Advanced Equipment, Department of Mechanical
Engineering, Tsinghua University, Beijing 100084, China;
2. Aerospace System Engineering Shanghai, Shanghai 201109, China)
Abstract: The cantilever beam friction pair is a classic type of contact friction system, valued for its simple structure and
ease of assembly, making it widely used in both industrial applications and research. In disc-type conductive slip rings,
the cantilever beam-supported friction pair plays a crucial role in transmitting signals and power between rotating and
stationary components. However, the relative motion in different directions between the contact surfaces affects the
normal force to varying degrees, and the system exhibits low stiffness perpendicular to the motion direction, making it
highly sensitive to vibration. To investigate this behavior, the author conducted a study on the frictional characteristics of
cantilever beam-supported friction pairs in conductive slip rings. Bidirectional sliding friction and wear experiments
were carried out under conditions where the vertical position of the cantilever beam-plane contact pair was fixed, and the
relative motion was parallel to the cantilever beam’s long axis. First, an experimental apparatus was designed to conduct
the friction and wear experiments, allowing for three degrees of translational freedom and slip ring rotation. Using this

Received 17 July 2024, revised 1 October 2024, accepted 8 October 2024, available online 25 February 2025.
*Corresponding author. E-mail: tianyu@mail.tsinghua.edu.cn, Tel: +86-10-62789482.