Performance investigation of aerostatic thrusting gas bearing with discontinuous slot-restricted

To study the characteristic of aerostatic thrusting gas bearing with non-continuous slot-restricted, pressure distribution formula of continuous slots was derived by the equations of motion, continuity equation and the equation of state, the pressure of theoretical calculations was compared with the Fluent numerical analysis in determining the parameters of conditions, obtained Fluent numerical calculations have high accuracy to analysis bearings characteristic with slot-restricted. The effect of the width, depth of slot on the capacity, static stiffness of the bearings were studied by the Fluent software. The results show that under the same conditions as other parameters, the capacity of bearings increases with the increase of the width of slot, increasing with the decrease of the depth of slot. Under the same conditions as other structure parameters, with deceasing the width of slot, maximum stiffness increases, gradually decreasing the maximum stiffness corresponding the gas film thickness, with increasing the depth of slot, maximum stiffness increases, gradually decreasing the maximum stiffness corresponding the gas film thickness.