Analysis of static pressure turntable bearing characteristics of tractor servo steering system

Abstract In response to the requirement for traction sliding mode in a follow-up steering function, a follow-up steering system with static pressure support is built, using the traction conditions of the B737-800 as a case study. To achieve optimal working conditions in the new traction taxiing mode, simulations of the fluid domain and analyses of bearing characteristics are conducted, revealing the impact of system parameters on the distribution of the pressure and velocity fields of the turntable under standard operating conditions. The precise impacts of parameters like oil supply pressure and orifice diameter on the oil film-bearing performance of vertical and radial turntables are investigated in greater detail. By analyzing the distribution of oil film pressure and velocity under varying conditions, the influence of these parameters on total bearing capacity is ascertained. The performance offers a theoretical foundation and direction for the design and optimization of hydrostatic turntables, presenting significant practical value.