行星轮滑动轴承对风电机组传动链振动特性影响

费文军; 谭建军; 朱才朝; 李浩; 叶伟; 孙章栋

doi:doi:10.19912/j.0254-0096.tynxb.2024-0196

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行星轮滑动轴承对风电机组传动链振动特性影响

更新时间：2025-12-02

- 行星轮滑动轴承对风电机组传动链振动特性影响
- Vol. 46, Issue 6, Pages: 645-658(2025)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-0196
  CLC： TM614
- Published Online：07 July 2025，
  
  Published：2025
- 稿件说明：
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费文军, 谭建军, 朱才朝, et al. 行星轮滑动轴承对风电机组传动链振动特性影响[J]. 2025, 46(6): 645-658.
DOI：

费文军, 谭建军, 朱才朝, et al. 行星轮滑动轴承对风电机组传动链振动特性影响[J]. 2025, 46(6): 645-658. DOI： doi:10.19912/j.0254-0096.tynxb.2024-0196.

摘要

以2 MW级风电机组传动链为研究对象

考虑行星轮滑动轴承接触界面柔性与箱体、内齿圈等复杂外形构件柔性

采用平均流量雷诺方程建立行星轮滑动轴承弹流润滑模型

利用有限元缩聚理论建立箱体、内齿圈轮齿、行星架耦合点与弹性支撑之间的关联关系

建立应用行星轮滑动轴承的风电机组传动链系统摩擦动力学耦合模型

分析不同载荷工况与轴承结构参数对传动链系统动态特性的影响规律

并通过台架试验验证。研究结果表明：增大输入扭矩、减小滑动轴承间隙有助于改善行星轮系齿面偏载情况;行星轮滑动轴承不会改变系统振动加速度响应主要特征频率成分

但会使系统振动位移响应中出现与行星轮转频相关的频率成分

且增大行星轮滑动轴承宽径比与间隙会增加系统振动;在高扭矩工况下行星轮滑动轴承易产生边缘粗糙峰接触

但减少行星轮滑动轴承宽径比与间隙有助于提高行星轮系均载性能。

Abstract

Under heavy load conditions

there is a complex nonlinear coupling relationship between the structure deformation of the wind turbine drivetrain and the dynamic clearance of the planetary gear sliding bearing

which easily causes the edge contact wear of the sliding bearing and reduces the stability of the system. Based on the 2MW wind turbine drivetrain

this study considers the flexibility of the contact interface of the planetary gear sliding bearing as well as the flexibility of the complex-shaped components such as the gearbox housing and the ring gear. The average flow Reynolds equation is used to compute the dynamic film thickness of the planetary gear sliding bearing. The correlation between the gearbox housing

ring gear

coupling points of the carrier and elastic support is established by the finite element reduction theory. A tribo-dynamic coupling model of wind turbine drivetrain with planetary gear sliding bearing is established. The influences of operating conditions of wind turbine drivetrain and structure parameters of the planetary gear sliding bearing on the dynamic characteristics of wind turbine drivetrain are investigated

and a test rig is conducted to validate the theoretical analysis. The results show that the uneven tooth load distribution of the planetary gear train system could be improved by increasing input torque and reducing the clearance of the sliding bearing. The planetary gear sliding bearing does not change the dominant frequency components of the system vibration acceleration response

but it will cause an extra frequency related to the rotational frequency of the planetary gear in vibration displacement

and increasing the width-diameter ratio and clearance of the planetary gear sliding bearing will increase the system vibration. The planetary gear sliding bearing is prone to solid contact under high-torque conditions

but reducing the width-to-diameter ratio and clearance of the planetary gear sliding bearing is conducive to improving the load-sharing performance of the planetary gear train system.

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