考虑风载特征的风电机组主轴承载荷谱编制方法  

Compilation Method for Load Spectrum of Wind Turbine Main Bearings Considering Wind Load Characteristics

作　　者：陈纪光 王建梅[1] 袁彦伟 宋玉龙 CHEN Jiguang;WANG Jianmei;YUAN Yanwei;SONG Yulong(High-End Heavy Machinery Equipment Research Institute,Taiyuan University of Science and Technology,Taiyuan 030024,China)

机构地区：[1]太原科技大学高端重型机械装备研究院,太原030024

出　　处：《轴承》2024年第9期16-21,共6页Bearing

基　　金：太原科技大学研究生联合培养示范基地项目(JD2022021)。

摘　　要：针对风电机组主轴承载荷波动大且随机性强,传统雨流外推法得到的载荷谱精度不能保证的问题,提出了一种考虑风载特征的风电机组主轴承载荷谱编制方法,采用小波包分解及长短期记忆网络进行考虑风载特征的载荷外推。与雨流外推法得到的载荷谱以及载荷趋势进行对比发现,在雨流外推法得到的幅值极大值范围内,2种方法结果基本一致,且该方法可以考虑风载特征,可更好地实现载荷外推,优化载荷谱的编制。Aimed at the problem of large fluctuations and strong randomness in load of wind turbines main bearings,and inability to ensure the accuracy of load spectrum obtained by traditional rain flow extrapolation method,a compilation method for load spectrum of the bearings is proposed considering wind load characteristics.The load extrapolation considering wind load characteristics is carried out by using wavelet packet decomposition and long short-term memory network.By comparing the load spectrum obtained by rain flow extrapolation method and load trend,it is found that the results of two methods are basically consistent within maximum amplitude range obtained by rain flow extrapolation method.The proposed method can better realize the load extrapolation considering wind load characteristics and optimize the compilation of load spectrum.

关 键 词：滚动轴承 风电轴承 圆锥滚子轴承 载荷谱 雨流计数法 小波变换 

分 类 号：TH133.332[机械工程—机械制造及自动化] TM315[电气工程—电机]