Research on Influencing Factors of Fatigue Strength of Wind Turbine Spindles Based on Nonlinear Contact

Song Kewei; Chen Xiaoxu; Liu Xiangyin; Tian Jiabin; Li Xiaoxia

doi:10.16578/j.issn.1004.2539.2023.11.005

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Research on Influencing Factors of Fatigue Strength of Wind Turbine Spindles Based on Nonlinear Contact

Theory·Research | 更新时间：2023-12-01

- Research on Influencing Factors of Fatigue Strength of Wind Turbine Spindles Based on Nonlinear Contact
- Journal of Mechanical Transmission Vol. 47, Issue 11, Pages: 30-36(2023)
- 作者机构：
  
  中车山东风电有限公司，山东济南 250104
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.11.005
  CLC：
- Published：15 November 2023，
  
  Received：06 September 2022，
  
  Revised：25 October 2022，
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宋克伟,陈孝旭,刘祥银等.基于非线性接触的风电机组主轴疲劳强度影响因素研究[J].机械传动,2023,47(11):30-36.

Song Kewei,Chen Xiaoxu,Liu Xiangyin,et al.Research on Influencing Factors of Fatigue Strength of Wind Turbine Spindles Based on Nonlinear Contact[J].Journal of Mechanical Transmission,2023,47(11):30-36.
宋克伟,陈孝旭,刘祥银等.基于非线性接触的风电机组主轴疲劳强度影响因素研究[J].机械传动,2023,47(11):30-36. DOI： 10.16578/j.issn.1004.2539.2023.11.005.

Song Kewei,Chen Xiaoxu,Liu Xiangyin,et al.Research on Influencing Factors of Fatigue Strength of Wind Turbine Spindles Based on Nonlinear Contact[J].Journal of Mechanical Transmission,2023,47(11):30-36. DOI： 10.16578/j.issn.1004.2539.2023.11.005.

摘要

为了更合理地模拟风力发电机组主轴的受力及传力特点，找出主轴疲劳强度影响因素，运用非线性接触单元模拟主轴承滚子，正确模拟主轴承的调心作用，建立了某型风电机组主轴与主轴承内圈过盈接触模型；结合等效时序载荷谱以及Miner疲劳损伤准则，研究分析了主轴-轴承内圈过盈量大小、主轴内孔大小、表面粗糙度、接触面摩擦因数和材料抗拉、屈服强度等对主轴疲劳强度性能的影响。研究结果对工程实际和生产具有一定的指导意义，同时为主轴的进一步轻量化设计奠定基础。

Abstract

In order to more reasonably simulate the force and force transmission characteristics of the main shaft of a wind turbine

and to find out the influencing factors of the fatigue strength of the main shaft

the nonlinear contact element is used to simulate the roller of the main bearing and correctly simulate the self-aligning effect of the main bearing. The interference contact model between the main shaft and the inner ring of the main bearing of a wind turbine is established. Based on the equivalent time series load spectrum and Miner's fatigue damage criterion

the effects of the size of the interference between the inner ring of the main shaft and the main-bearing

the size of the inner bore of the spindle

the surface roughness

the friction coefficient of the contact surface and the tensile and yield strength of the material on the fatigue strength properties of the spindle are studied and analyzed. The research results have certain guiding significance for engineering practice and production

and lay a foundation for further lightweight design of spindles.

关键词

风电机组主轴非线性接触疲劳强度

Keywords

Wind turbineMain shaftNonlinear contactFatigue strength

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