海洋钻机起升系统绞车滚筒层间钢丝绳弯曲摩擦疲劳行为研究

doi:10.3901/JME.2025.12.104

摘要/Abstract

摘要： 海洋钻机起升系统绞车滚筒层间钢丝绳易发生弯曲摩擦疲劳行为，造成钢丝绳横截面积损耗和承载强度降低，进而制约起升系统钢丝绳承载安全性。因此，运用自制层间钢丝绳弯曲摩擦疲劳试验台，开展不同疲劳参数(疲劳次数、疲劳载荷和围包角)下钢丝绳弯曲摩擦疲劳试验，通过人工拆股法、超景深电子显微镜和扫描电子显微镜，考察了钢丝绳弯曲摩擦疲劳特性(摩擦因数、磨损轮廓尺寸、横截面损失面积、磨损机理、磨损体积及磨损速率)及其受到疲劳参数的影响规律。结果表明：疲劳钢丝绳摩擦因数呈现快速增加、缓慢增加及趋于稳定的变化趋势，随着疲劳载荷的增大而增大，随着围包角增大而减小；最大磨损宽度、磨损深度、磨损体积及横截面最大损失面积均随着疲劳次数和疲劳载荷增加而增加，随围包角增大而减小；磨损速率随着疲劳次数增加呈现快速增加-趋于稳定-小幅增长的变化趋势；磨损机理主要为氧化磨损、黏着磨损和疲劳磨损。

关键词: 钢丝绳, 弯曲, 摩擦疲劳, 疲劳载荷

Abstract: The bending tribo-fatigue behaviors of the wire rope between the layers of winch drums in the hoisting system of offshore rig is easy to occur, which results in the loss of the cross-sectional area and the reduction of the load-bearing strength of the rope, and then restricts the load-bearing safety of the ropes in the hoisting system. Therefore, the bending tribo-fatigue test of steel wire ropes under different fatigue parameters (fatigue cycles, fatigue load and wrap angle) is carried out by using a self-made test bench for bending tribo-fatigue of steel wire rope between layers. The bending tribo-fatigue characteristics (wear coefficient, wear profile, cross-sectional loss area, wear mechanisms, wear volume and wear rate) and the law of their influence by fatigue parameters are investigated. The results demonstrate that the friction coefficient of the fatigue wire rope exhibits a rapid initial increase, followed by a slower subsequent rise that ultimately stabilizes. It increases with higher fatigue load, while it decreases with an increase in wrapping angles. The maximum wear width, wear depth, wear volume, and the cross-sectional loss area all increase with fatigue cycles and fatigue loads, but decrease as the wrapping angle increases. The wear rate initially increases rapidly, stabilizes, and then shows a slight increase with the number of fatigue cycles. The primary wear mechanisms identified include oxidative wear, adhesive wear, and fatigue wear.

Key words: wire ropes, bending, tribo-fatigue, fatigue load

中图分类号:

TH117

种海浪, 王大刚, 张德坤. 海洋钻机起升系统绞车滚筒层间钢丝绳弯曲摩擦疲劳行为研究[J]. 机械工程学报, 2025, 61(12): 104-117.

CHONG Hailang, WANG Dagang, ZHANG Dekun. Study of Bending Tribo-fatigue Behaviors of Wire Rope between Layers of Winch Drum of Offshore Drilling Rig Hoisting System[J]. Journal of Mechanical Engineering, 2025, 61(12): 104-117.

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