Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting

Lin Feng; Wang Wei; Li Jianmin; Fang Zhigang; Dou Yiyi; Zeng Hanya; Yin Jie

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Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting

更新时间：2022-10-20

- Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting
- Vol. 42, Issue 9, Pages: 61-65(2018)
- 作者机构：
  
  1. 浙江理工大学浙江省机电产品可靠性技术研究重点实验室
  2. 杭州前进齿轮箱集团股份有限公司
- 作者简介：
- 基金信息：
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[1]林锋,王威,李剑敏,方志刚,钭奕轶,曾翰雅,殷杰.疲劳点蚀下风电齿轮箱斜齿轮可靠度计算[J].机械传动,2018,42(09):61-65+105.

Lin Feng, Wang Wei, Li Jianmin, et al. Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting. [J]. 42(9):61-65(2018)
[1]林锋,王威,李剑敏,方志刚,钭奕轶,曾翰雅,殷杰.疲劳点蚀下风电齿轮箱斜齿轮可靠度计算[J].机械传动,2018,42(09):61-65+105. DOI：

Lin Feng, Wang Wei, Li Jianmin, et al. Calculation of the Reliability of Helical Gear in Wind Turbine Gearbox Under Fatigue Pitting. [J]. 42(9):61-65(2018) DOI：

摘要

风电齿轮箱第三级斜齿轮是高速重载齿轮,维护成本高昂,对可靠性要求颇高。而疲劳点蚀是其最常见的故障之一,将导致可靠度下降。建立了某风电齿轮箱第三级齿轮点蚀的有限元模型,在风场实测转矩谱作用下,计算并拟合得到应力谱,从而获得不同点蚀的直径和数目下齿轮的可靠度。结果表明,点蚀直径加大和数目的增加将使齿轮可靠度显著降低,且数目增加所致的齿轮可靠度降低尤为明显。

Abstract

The third stage helical gear of wind turbine gearbox is high-speed heavy-duty gear and it has high maintenance cost and high requirement for reliability. The fatigue pitting is one of the most common failures,which will make the reliability decline. The finite element model of helical gear with pitting corrosion is established. The stress spectrum is calculated and the reliability of helical gears with different pitting diameters and numbers are obtained under the effect of the wind field measured torque spectrum. The results show that the reliability of gear declines with the increase of pitting diameter,with the increasing number of pitting corrosion,the reliability is remarkably declining.

关键词

风电齿轮箱应力强度疲劳点蚀一次二阶矩法高斯混合模型可靠度

Keywords

Wind turbine gearboxStress intensityFatigue pittingFirst-order second-moment methodGaussian mixture modelReliability

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School of Electrical Engineering, Chongqing University

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