Background:
Hydrostatic bearings have the advantages of strong bearing capacity, good stability, small friction
coefficient and long life. The performance of liquid hydrostatic bearings directly affect the accuracy and efficiency of
CNC machining equipment. The performance is conducive to the development of CNC machine tools towards high speed
and heavy load, so it is necessary to sort out and summarize the existing research results.
Objective:
This study summarizes the current development status of hydrostatic bearings and explains the development
trend of hydrostatic bearings.
Methods:
According to the recently published journal articles and patents, the recent experimental research on hydrostatic
thrust bearings is summarized. This paper summarizes many factors that affect the performance of hydrostatic bearings,
and discusses the causes of various factors on hydrostatic bearings. Finally, future research on hydrostatic bearings is
presented.
Results:
The study discusses experimental methods, simulation processes, and experimental results.
Conclusion:
This study can produce dynamic and static pressure effects by changing the structure of the oil cavity of
the hydrostatic bearing. This effect can make up for the static pressure loss. By improving the theoretical formula and
mathematical model and proposing a new simulation method, the accuracy of the hydrostatic bearing simulation is
satisfied; the future development trend of the hydrostatic bearing is proposed.
Closure to “Discussion of ‘A Test Apparatus and Facility to Identify the Rotordynamic Coefficients of High-Speed Hydrostatic Bearings’” (1994, ASME J. Tribol., 116, p. 343)