风电轴承疲劳寿命的可靠性灵敏度分析

doi:10.12068/j.issn.1005-3026.2023.08.009

东北大学学报（自然科学版） ›› 2023, Vol. 44 ›› Issue (8): 1128-1135.DOI: 10.12068/j.issn.1005-3026.2023.08.009

风电轴承疲劳寿命的可靠性灵敏度分析

胡兵¹，黄贤振^1,2，杜姗珊³

(1.东北大学机械工程与自动化学院，辽宁沈阳110819；2.东北大学航空动力装备振动及控制教育部重点实验室，辽宁沈阳110819；3.瓦房店轴承集团有限责任公司风电轴承事业部，辽宁瓦房店116300)

发布日期:2023-08-15
通讯作者: 胡兵
作者简介:胡兵(1997-)，男，山东菏泽人，东北大学硕士研究生；黄贤振(1982-)，男，山东定陶人，东北大学教授，博士生导师.
基金资助:
国家自然科学基金资助项目(51975511，51975110，U22B2087).

Reliability Sensitivity Analysis of the Fatigue Life of Wind Turbine Bearings

HU Bing¹， HUANG Xian-zhen^1,2， DU Shan-shan³

1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. Key Laboratory of Vibration and Control of Aero-Propulsion Systems，Ministry of Education，Northeastern University，Shenyang 110819， China; 3. Wind Power Bearing Division， Wafangdian Bearing Group Co.， Ltd.， Wafangdian 116300， China.

Published:2023-08-15
Contact: HUANG Xian-zhen
About author:-
Supported by:
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摘要/Abstract

摘要： 以某2MW风电轴承为例，给出四自由度载荷作用下圆柱滚子轴承疲劳寿命的数学模型，通过Romax软件分析结果验证所建模型的准确性.按轴承最小额定寿命建立极限状态方程，采用自适应克里金与蒙特卡罗模拟相结合(adaptive Kriging-Monte Carlo simulation，AK-MCS)进行轴承疲劳寿命可靠性灵敏度分析.结果表明:轴承游隙、弹性模量、密度增大，轴承失效概率增大；轴承节圆、滚子有限长度增大，轴承失效概率减小；游隙对可靠性的影响最为明显，弹性模量、密度、滚子有限长度次之，节圆影响最小.

关键词: 圆柱滚子轴承；轴承疲劳寿命；自适应克里金与蒙特卡罗模拟；可靠性灵敏度分析；风力发电机

Abstract: A 2MW wind turbine bearing is taken as an example， and the mathematical model of the fatigue life of cylindrical roller bearings under four degrees of freedom load is given. The accuracy of the model is verified by Romax software analysis results. The limit state equation is established according to the minimum rated life of the bearing， and the adaptive Kriging-Monte Carlo simulation (AK-MCS) method is used to analyze the reliability sensitivity of the bearing′s fatigue life. The results show that the bearing failure probability increases with the increase of bearing clearance， elastic modulus and density. With the increase of bearing pitch and roller finite length， the failure probability of bearings decreases. The influence of clearance on reliability is the most obvious， followed by elastic modulus， density and roller finite length， and the influence of pitch is the least.

Key words: cylindrical roller bearing; bearing fatigue life; AK-MCS; reliability sensitivity analysis; wind turbine

中图分类号:

TH133.3

胡兵，黄贤振，杜姗珊. 风电轴承疲劳寿命的可靠性灵敏度分析[J]. 东北大学学报（自然科学版）, 2023, 44(8): 1128-1135.

HU Bing， HUANG Xian-zhen， DU Shan-shan. Reliability Sensitivity Analysis of the Fatigue Life of Wind Turbine Bearings[J]. Journal of Northeastern University(Natural Science), 2023, 44(8): 1128-1135.

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风电轴承疲劳寿命的可靠性灵敏度分析

Reliability Sensitivity Analysis of the Fatigue Life of Wind Turbine Bearings

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