启动阶段风电齿轮箱行星轮径向-双向推力耦合滑动轴承瞬态润滑性能分析

李浩; 谭建军; 朱才朝; 费文军; 孙章栋; 王红霞

doi:doi:10.19912/j.0254-0096.tynxb.2024-1785

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启动阶段风电齿轮箱行星轮径向-双向推力耦合滑动轴承瞬态润滑性能分析

更新时间：2026-03-06

- 启动阶段风电齿轮箱行星轮径向-双向推力耦合滑动轴承瞬态润滑性能分析
- Vol. 47, Issue 2, Pages: 486-497(2026)
- 作者机构：
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1785
  CLC： TM614
- Online First：05 March 2026，
  
  Published：05 March 2026
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李浩, 谭建军, 朱才朝, et al. 启动阶段风电齿轮箱行星轮径向-双向推力耦合滑动轴承瞬态润滑性能分析[J]. 2026, 47(2): 486-497.
DOI：

李浩, 谭建军, 朱才朝, et al. 启动阶段风电齿轮箱行星轮径向-双向推力耦合滑动轴承瞬态润滑性能分析[J]. 2026, 47(2): 486-497. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1785.

摘要

考虑启动过程中行星轮动态转速与啮合载荷影响

建立6 MW风电齿轮箱行星轮径向-双向推力耦合滑动轴承5自由度摩擦动力学数值分析模型

并以齿轮箱动力学模型预先提取的行星轮滑动轴承时序载荷、转速作为滑动轴承数值模型输入

分析压力耦合边界、推力滑动轴承和轴向间隙对启动阶段径向-双向推力耦合滑动轴承润滑性能变化规律

并进行试验验证。结果表明

受行星轮动态啮合载荷影响

径向滑动轴承在启动阶段末期出现轻微粗糙峰接触

其油膜压力存在单双峰交替现象

并通过压力耦合边界造成推力滑动轴承最大油膜压力增加;双向推力滑动轴承可抑制行星轮-销轴承载方向的错位和偏心

改善界面粗糙峰接触

但同时也会增加其非承载方向错位和偏心;过小的轴向间隙会引起推力滑动轴承最大油膜压力和波动程度剧增

推力瓦瓦块均载性能下降。

Abstract

Considering the effects of dynamic rotational speed and meshing load of the planet gear during start-up

a 5-degree-of-freedom frictional dynamics model of coupled journal and bidirectional thrust bearings is established to investigate the lubrication performance during the start-up phase. The equivalent boundary conditions for the planet gear during start-up are derived from a multi-body dynamics model of the wind turbine gearbox. The impacts of pressure coupling boundaries

thrust bearings

and axial clearance on the lubrication performance of the coupled bearings are analyzed and validated through experiments. The results indicate that

under the influence of dynamic meshing load from the planet gear

the journal bearing experiences slight asperity contact at the conclusion of the start-up phase

with film pressure alternating between single and double peaks. The maximum film pressure is enhanced by the pressure coupling boundary. The bidirectional thrust bearing can mitigate misalignment and eccentricity in the load direction

while potentially increasing them in the non-load direction. Insufficient axial clearance can lead to a significant increase in maximum film pressure and fluctuation of the thrust bearing

as well as a reduction in the load balancing performance of the thrust pads.

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