Onshore wind turbine main bearing reliability and its implications in fleet management
Onshore wind turbine main bearing reliability and its implications in fleet management
复制标题
陆上风力发电机主轴承可靠性及其对机队管理的影响
DOI：
10.2514/6.2019-1225
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
F. Viana
中科院分区：
文献类型：
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作者：
Yigit A. Yucesan;F. Viana
由于与起重机，劳动力和生产损失相关的成本，主要轴承故障可能成为造成运营和维护费用的主要贡献者。文献中可用的数据表明，可以观察到的主要轴承故障比设计寿命（以4倍为4）要早得多，根本原因分析表明与负载相关，暴露于严峻的环境，维护不足以及质量生产的问题（不良）一批材料）可以导致有用的寿命非常减少。建模主要轴承可靠性很重要，但绝对非常具有挑战性。本文的重点是理解三分线式风力涡轮机中疲劳损伤积累模型的预测能力。结果表明，疲劳寿命可以显着导致轴承失败，尤其是在润滑污染下。我们还表明，可以通过适当的维护（完整的再生）来提高涡轮特定的可靠性。
Main bearing failure can become a major contributor to operation and maintenance expenses due to costs associated with crane, labor, and production loss. Data available in the literature indicates that main bearing failure can be observed much earlier than design lives (by a factor of 4) and root cause analysis indicate problems associated with loads, exposure to harsh environment, inadequate maintenance, and problems with mass production (bad batch of materials) can lead to very reduced useful life. Modeling main bearing reliability is important but definitely very challenging. This paper is focused on understanding the predictive capabilities of a fatigue damage accumulation model as applied to main bearings in three-point mount wind turbines. The results demonstrate that fatigue life can significantly contribute to bearing failures, especially under lubrication contamination. We also showed that turbine-specific reliability can be improved by proper maintenance (full regreasing).