Research on the Characteristics of Porous Throttling Aerostatic Thrust Bearings with Concave Working Surface
YU He-chun
ZHANG Guo-qing
CHEN Jun-ping
ZHAO Hui-ying
ZHAO Ze-xiang
HOU Xiao-shuai
Abstract：According to the characteristics of porous throttling aerostatic thrust bearings with concave working surface,the Fluent software is used for the flow field calculation.The influence of the concave surface height and the concave chord length on the static characteristics of aerostatic thrust bearings are analyzed.At the same time,the influence of the gas pressure and the film clearance on the pressure distribution under the concave and the ideal working surface are compared and discussed.The following conclusions are drawn:with the increases of the concave chord length,the pressure distribution of porous throttling aerostatic thrust bear-ings with the concave working surface becomes more uniform,the bearing capacity decrease,the bearing stiff-ness and the gas consumption increase;with the increase of the concave height,the pressure distribution also becomes more uniform,the bearing capacity and the bearing stiffness decrease,and the gas consumption in-crease;under concave working surface state,because the pressure distribution field is relatively uniform,the increase of gas supply pressure or the decrease of gas film clearance,the bearing capacity and stiffness change more.
Keywords：porousaerostaticpressure distributionconcave working surface
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 7-11 )