期刊
TRIBOLOGY INTERNATIONAL
卷 183, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.triboint.2023.108356
关键词
Hydrostatic; Thrust bearing; Dynamic; Shallow recess
The dynamic stiffness of traditional deep recess hydrostatic bearings decreases due to fluid compressibility, but shallow recess bearings reduce this influence through reduced compressible volume and inherent stiffness. This article presents a theoretical and experimental study of the dynamic stiffness of oil hydrostatic shallow recess thrust bearings with and without external compensation devices. The study validates the theoretical models and demonstrates the potential to increase dynamic stiffness. Analytical solutions for the stiffness and damping of a circular shallow recess thrust bearing are also proposed.
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.
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