Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load

Jinwen Wang; Xiayue Ma; Zihao Liu; Xiaolu Leng; Shijing Wu

doi:10.16578/j.issn.1004.2539.2022.01.004

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Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load

Theory·Reserach | 更新时间：2022-09-23

- Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load
- Journal of Mechanical Transmission Vol. 46, Issue 1, Pages: 33-41(2022)
- 作者机构：
  
  1.国能云南新能源有限公司，云南昆明 650299
  2.武汉大学动力与机械学院，湖北武汉 430072
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2022.01.004
  CLC：
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王金文,马夏悦,刘子豪等.随机风载下含裂纹故障风机增速箱动力学研究[J].机械传动,2022,46(01):33-41.

Wang Jinwen,Ma Xiayue,Liu Zihao,et al.Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load[J].Journal of Mechanical Transmission,2022,46(01):33-41.
王金文,马夏悦,刘子豪等.随机风载下含裂纹故障风机增速箱动力学研究[J].机械传动,2022,46(01):33-41. DOI： 10.16578/j.issn.1004.2539.2022.01.004.

Wang Jinwen,Ma Xiayue,Liu Zihao,et al.Study on Dynamics of Wind Turbine Gearbox with Crack Fault under Random Wind Load[J].Journal of Mechanical Transmission,2022,46(01):33-41. DOI： 10.16578/j.issn.1004.2539.2022.01.004.

摘要

裂纹故障会导致齿轮时变啮合刚度发生变化，进而引起系统振动响应改变。以风机增速箱为研究对象，考虑基圆和齿根圆不重合，采用改进能量法分别计算了各级齿轮副的时变啮合刚度，并计算、分析了太阳轮裂纹故障对啮合刚度的影响。风机增速箱运行于自然风载荷环境中，受时变转速和转矩激励，综合考虑齿侧间隙、时变啮合刚度、啮合误差等因素，利用集中参数法建立风机增速箱的平移-扭转-轴向耦合模型，采用龙格库塔法得到系统的动力学响应，并对响应进行阶次分析，得到了太阳轮裂纹故障对风机增速箱振动响应的影响规律，研究风机增速箱太阳轮裂纹故障失效机理，为风机增速箱在线监测和故障诊断提供了理论依据。

Abstract

Crack fault will affect the time-varying meshing stiffness of the gear，and cause the vibration response of gear transmission system. Taking the wind turbine gearbox as the research object，considering the misalignment of gear root circle and base circle，an improved energy method is used to calculate the time-varying meshing stiffness of each gear pair. Based the improved method，the influence of sun gear crack on meshing stiffness is calculated and analyzed. Wind turbine gearbox operates in a natural wind load environment，and is excited by time-varying speed and torque. The translation-torsional-axial coupling model of wind turbine gearbox is established by using the lumped parameter method and considering backlash，time-varying meshing stiffness，meshing error parameter. The Runge-Kutta method is adopted to get the system dynamics response，and the order analysis of the response is carried out. The influence of the sun gear crack fault on the vibration response of wind turbine geatbox is obtained，and the fault failure mechanism of sun gear crack fault of wind turbine gearbox is studied. The conclusions provide theoretical reference for online monitoring and fault diagnosis of wind turbine gearbox.

关键词

随机风载齿根裂纹啮合刚度阶次分析风机增速箱

Keywords

Random wind loadRoot crackMeshing stiffnessOrder analysisWind turbine gearbox

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