基于代理模型的风力机轴承疲劳寿命高效估计  

A High-efficiency Surrogated Model-based Fatigue Lifing Estimation Method for Wind Turbine Bearings

作　　者：吕仕杰 姜孝谟 赵海心 连志强 孙恩 王志成 陈金涛 Shi-jile Lv;Xiao-mo Jiang;Hai-xin Zhao;Zhi-qiang Lian;En Sun;Zhi-cheng Wang;Jin-tao Chen(Faculy of Vehicle Engineering and Mechanies,Dalian University of Technology;State Key Lab of Structural Analysis,Optimization and CAE Software for Industrial Equipment,Provincial Key Lab of Digital Twin for Industrial Equipment of Liaoning,School of Energy and Power Engineering,Dalian University of Technology;Lab of Ocean Energy Utilization of Ministry of Education,School of Energy and Power Engineering,Dalian University of Technology)

机构地区：[1]大连理工大学运载工程与力学学部 [2]工业装备结构分析优化与CAE软件全国重点实验室,工业装备数字孪生辽宁省重点实验室,大连理工大学能源与动力学院 [3]教育部海洋能源利用重点实验室,大连理工大学能源与动力学院

出　　处：《风机技术》2023年第4期72-79,共8页Chinese Journal of Turbomachinery

基　　金：大兆瓦海上风机基于数字孪生的智能运维平台,大连市领军人才创新支持计划(2022RG10)。

摘　　要：双列调心滚子轴承广泛用于不同功率风力机主轴轴承,其结构复杂,工况繁多,以至其疲劳损伤具有极大的离散性,难以实现其使用寿命的快速准确估计。本文提出了一种针对双列滚子轴承疲劳数物融合的快速预估方法。首先结合拉格朗日方程和赫兹接触理论建立了轴承动力学机理仿真模型,然后使用序列加点方法和Kriging插值模型实现了应力的快速仿真,最后结合S-N曲线和累积损伤寿命理论获得轴承的疲劳损伤程度。通过某实际风场的主轴承算例,证明了本文所提方法的精度和计算效率。The double-row self-aligning roller bearing has been widely applied in various wind turbines,whose complicated structure and varying working conditions make its fatigue damage estimation very difcult.This paper proposes a high-efficiency and rapid analysis approach for fatigue damage estimation of double-row roller bearings by adeptly developing a kriging surrogate modeling.First,the bearing dynamics simulation model is established by combining Lagrange equation and Hertz contact theory,then the rapid simulation of stress is realized by integrating the sequential plus point method and Kriging interpolation model,and finally the bearing fatigue damage is estimated by using S-N curve and cumulative damage life theory.The accuracy and eficiency of the proposed method is demonstrated by an example of the main bearing in a real wind farm.

关 键 词：双列调心滚子轴承 动力学机理 Kriging代理模型 疲劳寿命估计 

分 类 号：TM315[电气工程—电机]