Lower Speed Stability Analysis of Large Hybrid Differential Turntable

Abstract

There are some differences between the existence of kinetic friction and static friction when the static pressure turntable starts. This may lead to large rotary table come into the crawling problem and poor movement at lower speed. This paper investigates a new type of differential turntable with dynamic and static pressure. The Reynolds equation of logarithmic spiral groove is deduced. Through the establishment of the turntable motion model, using the flow equilibrium, the turntable movement statuses with different working conditions are discussed by Matlab. The conclusion shows that the hybrid differential table eliminates the crawling phenomena, and makes the turntable run steadily.