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A Review of Thermal Effect of Hydrostatic Bearing

Author(s): Xiaodong Yang, Jian Zhang, Hongbo Liu, Xianli Liu*, Feilin Liu and Wei Feng Liu

Volume 17, Issue 6, 2023

Published on: 20 October, 2022

Article ID: e051022209594 Pages: 12

DOI: 10.2174/1872212117666221005094400

Price: $65

Abstract

Background: With the continuous development of the modern machinery industry, the technical level of rotating machinery is increasing. As a key component of the bearing system and power transmission system in rotating machinery, the hydrostatic bearing has higher performance requirements in all aspects. When the system is working normally, due to the shearing effect of the lubricating oil driven by the spindle rotation, a large amount of heat will be generated. The system will generate thermal effects on the bearing through heat accumulation and heat conduction. The thermal effect will directly reduce the viscosity of the hydraulic oil, affecting the bearing capacity. Seriously, it will cause thermal deformation of the parts, which will affect the normal operation of the bearing, and even cause an accident.

Objective: Analysis and discussion on the thermal effect of hydrostatic bearing in recent years.

Methods: More than 70 recently published patents, as well as journal and conference papers on hydrostatic bearings, were reviewed. The results of temperature fields, pressure fields, deformation, lubrication, bearing capacity and friction were studied.

Results: This review summarizes the research results from three aspects: the influencing factor of temperature rise, the influence of temperature rise on bearing structure and performance, and the effective control of temperature rise.

Conclusion: The relevant research methods are analyzed. The problem of thermal effect of hydrostatic bearing is summarized and prospected, and the future development can be expected.

Keywords: Hydrostatic bearing, thermal effect, thermal deformation, lubrication, carrying capacity, frictional characteristic.

Graphical Abstract

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