在海上风力轮机中,滚动接触疲劳表现的曲率轴承赛道
Haifeng He1, Yiming Chen2,3,4, Yang Liu1
1School of Mechanical and Electrical Engineering, Guizhou Normal University, Guiyang 550025, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
在海上风力轮机 (OWT) 中,轴承对于可靠性至关重要. 本研究模型在OWT位轴承中进行滚动接触疲劳 (RCF),发现弹性损伤是其运行寿命的关键.
科学领域:
- 机械工程 机械工程
- 材料科学 材料科学 材料科学
- 可再生能源系统可再生能源系统
背景情况:
- 杆轴承是海上风力轮机 (OWT) 的关键部件,在恶劣的海洋环境中对运行寿命和结构可靠性至关重要.
- 这些轴承的滚动接触疲劳 (RCF) 可以导致OWT操作中的重大经济损失和安全风险.
- 了解RCF机制对于提高OWT轴承的耐用性和性能至关重要.
研究的目的:
- 开发和利用一个模拟模型来分析在3MWOWT中在运行条件下杆轴承的RCF行为.
- 调查弹性和塑料损伤对OWT轴承疲劳寿命的贡献.
- 确定影响轴承赛道疲劳寿命的主要损伤机制.
主要方法:
- 建立了轴承的模拟模型,结合了连续损伤力学原理.
- 使用Python脚本来建模损伤过程,同时考虑弹性和塑性变形.
- 编程了一个用户子程序 (UMAT) 来模拟机械性能的逐渐退化.
主要成果:
- 模拟显示了球场轴承赛道内疲劳损伤积累的显著非线性特征.
- 弹性损伤被确定为控制运行负载下轴承疲劳寿命的主要因素.
- 该研究量化了OWT轴承的RCF中的弹性和塑性损伤之间的相互作用.
结论:
- 开发的模拟模型准确地描绘了OWT球轴承中的RCF行为和疲劳损伤.
- 弹性损伤在轴承的疲劳寿命中起着主导作用,突出了材料和设计改进的领域.
- 结果为提高海上风力轮机轴承的可靠性和寿命提供了关键的见解,有助于风能经济可行性.
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