Static and Dynamic Characteristics of Tilting-Pad Thrust Bearing on Inclined Shaft

doi:10.7652/xjtuxb202007016

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Static and Dynamic Characteristics of Tilting-Pad Thrust Bearing on Inclined Shaft

更新时间：2025-07-09

- Static and Dynamic Characteristics of Tilting-Pad Thrust Bearing on Inclined Shaft
- Vol. 54, Issue 7, Pages: 129-138(2020)
- 作者机构：
  
  西安交通大学现代设计及转子轴承系统教育部重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202007016
  CLC： TH133.3
- Online First：10 July 2020，
  
  Published：2020
- 稿件说明：
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Static and Dynamic Characteristics of Tilting-Pad Thrust Bearing on Inclined Shaft[J]. 2020, 54(7): 129-138.
DOI：

Static and Dynamic Characteristics of Tilting-Pad Thrust Bearing on Inclined Shaft[J]. 2020, 54(7): 129-138. DOI： 10.7652/xjtuxb202007016.

摘要

针对船舶可倾瓦推力轴承在实际运行过程中存在的轴系倾斜问题

建立倾斜状态下可倾瓦推力轴承热弹流体动压润滑计算模型

研究倾斜状态对可倾瓦推力轴承静动特性的影响。提出了以倾斜角和轴线投影角两个参数来表征倾斜状态的数学模型; 联合热弹流体动压润滑模型和轴向油膜刚度、阻尼系数求解模型

全过程求解可倾瓦推力轴承静动特性。静态性能参数包括载荷、最小油膜厚度、最大油膜压力、最高油膜温度; 动态性能参数包括轴向油膜刚度和阻尼系数。结果表明:轴线倾斜使每块瓦承受载荷严重不均

造成各块瓦巨大的性能差异; 倾斜角增大使瓦所承受载荷、油膜压力和油膜温度增加

油膜厚度减小

且外载荷越大变化越显著; 轴线投影角所在轴瓦承受载荷最大

当轴线投影角在支点附近时

静态性能参数皆有极值存在; 轴线投影角在距瓦进油边31°的位置时推力轴承轴向油膜刚度和阻尼系数有最大值。研究结果可为倾斜状态下可倾瓦推力轴承可靠性的提高提供参考。

Abstract

To solve the problem of shaft system inclination in the actual operation of marine tilting-pad thrust bearing

a thermo-elasto-hydro-dynamic(TEHD)model of tilting-pad thrust bearing is established

and the influence of inclination state on the static and dynamic performances of the bearing is studied. Firstly

a mathematical model is proposed to describe the inclination state with two parameters of inclined angle and axis projection angle. Then

the static and dynamic characteristics of the bearing are solved by combining the TEHD model and the axial oil film stiffness and damping coefficient solution model. Finally

the influences of inclined angle and axis projection angle on the static and dynamic characteristics of tilting-pad thrust bearing are analy-ed. The static performance parameters include load

minimum oil film thickness

maximum oil film pressure and maximum oil film temperature; and the dynamic performance parameters include axial oil film stiffness and damping coefficien

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references

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