摘要
随着风电装机容量快速增长,主轴轴承作为风电机组传动系统的核心部件,其可靠性直接影响机组运行效率与使用寿命。文章针对风电机组主轴轴承的典型故障模式,从机械载荷特性、材料疲劳损伤、润滑失效等角度深入分析故障形成机理,结合理论建模与试验验证揭示多物理场耦合作用下的失效规律。在此基础上,系统研究基于振动信号分析、声发射检测的早期故障诊断技术,提出分级维修策略与关键修复工艺优化方案。通过实际案例验证,所提方法可明显降低非计划停机时间,为风电机组运维提供科学依据。
With the rapid growth of installed capacity of wind power,the main shaft bearing,as the core component of the transmission system of wind turbine units,its reliability directly affects the operating efficiency and service life of the units.This paper focuses on the typical failure modes of the main shaft bearings of wind turbine units.It conducts an in-depth analysis of the failure formation mechanism from the perspectives of mechanical load characteristics,material fatigue damage,and lubrication failure.Combined with theoretical modeling and experimental verification,it reveals the failure law under the coupling effect of multiple physical fields.On this basis,the early fault diagnosis technology based on vibration signal analysis and acoustic emission detection is systematically studied,and the hierarchical maintenance strategy and the optimization scheme of key repair processes are proposed.Verified through actual cases,the proposed method can significantly reduce unplanned downtime and provide a scientific basis for the operation and maintenance of wind turbine units.
出处
《电力系统装备》
2025年第5期162-164,共3页
Electric Power System Equipment
关键词
主轴轴承
故障机理
状态监测
维修技术
寿命预测
spindle bearings
fault mechanism
status monitoring
maintenance technology
prediction
