基于多轴疲劳准则的风电齿轮箱接触疲劳寿命研究

顾慧耘; 周建星; 崔权维; 费翔; 温建民; 房忠

doi:10.19912/j.0254-0096.tynxb.2025-0165

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基于多轴疲劳准则的风电齿轮箱接触疲劳寿命研究

更新时间：2026-07-22

- 基于多轴疲劳准则的风电齿轮箱接触疲劳寿命研究
- Vol. 47, Issue 6, Pages: 372-383(2026)
- 作者机构：
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- DOI：10.19912/j.0254-0096.tynxb.2025-0165
  CLC： TH132
- Online First：08 July 2026，
  
  Published：2026
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顾慧耘, 周建星, 崔权维, et al. 基于多轴疲劳准则的风电齿轮箱接触疲劳寿命研究[J]. 2026, 47(6): 372-383.
DOI：

顾慧耘, 周建星, 崔权维, et al. 基于多轴疲劳准则的风电齿轮箱接触疲劳寿命研究[J]. 2026, 47(6): 372-383. DOI： 10.19912/j.0254-0096.tynxb.2025-0165.

摘要

为预测风电齿轮箱各齿轮的接触疲劳寿命

以新疆达坂城风场某6 MW风电齿轮箱为研究对象

建立内外部激励作用的风电齿轮箱动力学模型

求解各斜齿轮啮合副的动态啮合力。考虑各齿轮的局部材料性能和残余应力

结合Dang Van多轴疲劳准则和S-N曲线

分析接触载荷作用下斜齿轮的疲劳损伤分布规律。进一步定位疲劳热点

抽取关键工况建立代理模型

计算齿轮箱20 a设计寿命内各齿轮的接触疲劳损伤和接触疲劳寿命。结果表明：斜齿轮外啮合副的啮入点和啮出点附近为疲劳热点区域

更易疲劳失效。太阳轮的接触疲劳损伤最大

高速级和低速级太阳轮的接触疲劳寿命分别为8和21 a;两级行星轮的接触疲劳损伤则较小

接触疲劳寿命都超过了30 a;内齿圈的接触疲劳损伤最小

其接触疲劳寿命很长。

Abstract

Wind turbine gearboxes are subjected to contact loads during operation

resulting in contact fatigue damage in the gears

which significantly affects their service life. To accurately predict the contact fatigue life of gears

this study takes a 6 MW wind turbine gearbox operating at Dabancheng Wind Farm

Xinjiang

as the research object. A gearbox dynamic model considering both internal and external excitations is established to calculate the dynamic meshing forces of each helical gear pair. The analysis incorporates local material properties and residual stresses in the gears. By applying the Dang Van multiaxial fatigue criterion combined with - curves

the fatigue damage distribution in the helical gears under contact loading is analyzed. Fatigue hotspots are identified

and critical operating conditions are extracted to develop a surrogate model

which quantifies the contact fatigue damage and estimates the contact fatigue life of each gear over a 20-year design period. The results indicate that the engage-in and recess points of external meshing pairs in helical gears are the primary fatigue hotspots

making them more susceptible to fatigue failure. Among all gears

the sun gears exhibit the most severe contact fatigue damage

with estimated contact fatigue life of 8 years for the high-speed sun gear and 21 years for the low-speed sun gear. Conversely

the planetary gears in both stages show relatively lower fatigue damage

with their contact fatigue life exceeding 30 years. The ring gear experiences the least fatigue damage

resulting in an exceptionally long service life.

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Keywords

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