当前位置: X-MOL 学术Tribol. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Fretting Behaviors of Steel Wires with Tensile-Torsional Coupling Force Under Different Wire Diameters and Crossing Angles
Tribology Letters ( IF 3.2 ) Pub Date : 2020-08-17 , DOI: 10.1007/s11249-020-01331-8
Chun-ming Xu , Yu-xing Peng , Zhen-cai Zhu , Wei Tang , Kun Huang

Fretting wear among steel wires is one of the important factors for the wire rope fracture. The influence of the wire diameter and crossing angle on the fretting fatigue behaviors of steel wires under tensile-torsional coupling force was explored in the present study. The test principles and analysis methods were introduced. Result shows that the variation laws of the coefficient of friction (CoF) between steel wires with increasing crossing angle under different wire diameter contacts are the same. For the same crossing angle, the CoF under different test conditions increases in the following sequence: both with the diameter of 0.8 mm < both with different diameters < both with the diameter of 1.0 mm. According to the hysteresis loops of the frictional force versus displacement amplitude, the contact area between steel wires with larger crossing angle is easier to enter into partial slip state. Moreover, as the crossing angle increases, the relative amount between steel wires increases in the relatively stable phase, and the wear is more drastic. The main wear mechanisms of steel wires with different wire diameters are fatigue wear and adhesive wear, and the worn surface of steel wires shows more obvious abrasive wear with decreasing crossing angle.

Graphical Abstract



中文翻译:

不同线径和交角下具有扭扭耦合力的钢丝微动行为

钢丝之间的微动磨损是钢丝绳断裂的重要因素之一。研究了钢丝直径和交叉角对钢丝在拉伸-扭转耦合作用下的微动疲劳行为的影响。介绍了测试原理和分析方法。结果表明,在不同的线径接触条件下,随着交叉角的增加,钢丝之间的摩擦系数(CoF)的变化规律是相同的。对于相同的交叉角,在不同测试条件下的CoF按以下顺序增加:直径均为0.8 mm <直径均小于<1.0 mm。根据摩擦力相对于位移幅度的磁滞回线,交叉角度大的钢丝之间的接触面积更容易进入局部滑移状态。此外,随着交叉角度的增加,钢丝之间的相对量在相对稳定的相位中增加,并且磨损更加剧烈。不同直径钢丝的主要磨损机理为疲劳磨损和粘着磨损,钢丝的磨损表面随着交叉角的减小而表现出更明显的磨料磨损。

图形概要

更新日期:2020-08-17
down
wechat
bug