Experimental and theoretical study on the dynamic stiffness of circular oil hydrostatic shallow recess thrust bearings

被引：7
|
作者：
Tripkewitz, Fabian A. [1 ,2 ]
Lazak, Tomas [3 ]
Fritz, Matthias [1 ]
Stach, Eduard [3 ]
Weigold, Matthias [2 ]
Sulitka, Matej [3 ]
机构：
[1] KERN Microtech GmbH, Olympiastr 2, D-82438 Eschenlohe, Germany
[2] Tech Univ Darmstadt, Inst Prod Management Technol & Machine Tools PTW, Otto Berndt Str 2, D-64287 Darmstadt, Germany
[3] Czech Tech Univ, Fac Mech Engn, Dept Prod Machines & Equipment, RCMT, Horska 3, Prague 12800, Czech Republic
来源：
TRIBOLOGY INTERNATIONAL | 2023年 / 183卷
关键词：
Hydrostatic; Thrust bearing; Dynamic; Shallow recess;
D O I：
10.1016/j.triboint.2023.108356
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The dynamic stiffness of traditional (deep recess) hydrostatic bearings decreases due to the fluid compressibility between the bearing and a compensation device, e.g., a capillary. Shallow recess bearings, on the other hand, reduce the influence of fluid compressibility on dynamic stiffness through a reduced compressible volume and inherent stiffness. This article outlines a theoretical and experimental study of the dynamic stiffness of oil hy-drostatic shallow recess thrust bearings without external compensation devices and in combination with external capillaries. The measurements performed in the study validate the theoretical models and the potential to in-crease dynamic stiffness. In addition, analytical solutions are proposed for the stiffness and damping of a circular shallow recess thrust bearing.
引用
收藏
页数：15
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