基于Romax柔性模型的风电主轴圆锥滚子轴承接触应力和疲劳寿命分析  

Contact Stress and Fatigue Life Analysis of Tapered Roller Bearings for Wind Turbine Based on Romax Flexible Model

作　　者：朱宇腾 梁辉 漫恒源 冯毅杰 张传科 Zhu Yuteng;Liang Hui;Man Hengyuan;Feng Yijie;Zhang Chuanke(Luoyang Bearing Research Institute Co.,Ltd.,Luoyang,Henan 471039,China;Luoyang Bearing Science and Technology Co.,Ltd.,Luoyang 471039,China)

机构地区：[1]洛阳轴承研究所有限公司,河南洛阳471039 [2]洛阳轴研科技有限公司,河南洛阳471039

出　　处：《机电工程技术》2024年第6期41-46,共6页Mechanical & Electrical Engineering Technology

基　　金：洛阳市重大科技创新专项(2201006A)。

摘　　要：风电机组轴承是高性能风机的核心部件,为了开发更高性能的风电机组轴承,需要对轴承的性能与寿命做出合理评价。基于轴承经典理论和软件仿真分析的结果,提出一种评价轴承性能指标的新方法。利用Romax软件搭建风机传动链柔性模型,以实际服役的风机机型为载体,在充分考虑风机所受复合载荷的前提下,分析滚动体修型量对于风机主轴轴承服役性能的影响。结果表明:所提方法能够考虑到轴系各部件的变形对于轴承滚动体载荷的影响,同时计算出较为合理的轴承风载合成寿命。对于滚动体不同修型量的比较,过小的修型量会导致应力集中,过大的修型量会造成接触区域变短,合适的修型量需要根据轴承受力情况具体分析。Bearings are the core components of high-performance wind turbines.To develop wind turbine bearings with higher performance,it is necessary to make a reasonable evaluation of the performance and fatigue life of bearings.A new method based on the classical theory and the results of simulation is proposed to evaluate the performance indicators of bearing.A flexible model of an actual operational wind turbine is built by Romax software,with full consideration of the composite load of wind turbine,then the influence of rolling element crown drop is analyzed.The result indicates that the proposed method has considered the influence of components deformation on bearing load and calculate the reasonable fatigue life of bearings.For the comparison of different crown drops,an insufficient crown drop of tapered roller will lead to stress concentration,while an excessive one will shorten the contact area.The appropriate crown drop of tapered roller needs to be analyzed specifically based on the load conditions.

关 键 词：风电机组 ROMAX模型 圆锥滚子轴承 滚动体修型量 疲劳寿命 

分 类 号：TH133.3[机械工程—机械制造及自动化]