Static Characteristics of Water Lubricated Rubber Stern Bearings with Misaligned Journal

被引：0
|
作者：
Wang Y. [1 ]
Liu Y. [1 ]
Wang B. [1 ]
Zhu C. [2 ]
Yuan X. [1 ]
机构：
[1] Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University, Xi'an
[2] College of Electrical Engineering, Zhejiang University, Hangzhou
来源：
Hsi-An Chiao Tung Ta Hsueh/Journal of Xi'an Jiaotong University | 2020年 / 54卷 / 05期
关键词：
Journal misalignment; Rubber bearing; Static characteristics; Water lubrication;
D O I：
10.7652/xjtuxb202005009
中图分类号：
学科分类号：
摘要：
In view of the friction and wear caused by inclination of the stern bearing journal under load, the elastohydrodynamic lubrication models of the circular and grooved water lubricated rubber bearings with the journal center of the split plane as the base point are established. The pressure and film thickness distributions of the water lubricated rubber bearing in journal alignment and misalignment states are solved by finite difference method. The influences of journal inclination angle on the static performances of the bearing such as oil film force, oil film moment and pressure center are discussed. The results show that the static characteristics of the circular and grooved bearings change obviously after journal tilting. The maximum oil film pressure increases rapidly when the inclination angle increases beyond a certain threshold. Meanwhile, the minimum oil film thickness decreases to the allowable minimum thickness with the increase of the inclination angle of the journal. Besides, since the oil film pressure is no longer symmetrical to the axial direction after the journal inclination, the pressure center moves towards the sinking end. As a result, the oil film moment is produced and its value increases from zero. In addition, the allowable maximum journal inclination angle decreases with the eccentricity and the allowable minimum film thickness. This study may provide reference for the static performance optimization of water lubricated rubber bearings under journal tilting conditions. © 2020, Editorial Office of Journal of Xi'an Jiaotong University. All right reserved.
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页码：61 / 69
页数：8
相关论文
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