Abstract:Considering the effect of oil supply and temperature viscosity effect of lubricating oil on the lubrication characteristics of floating ring bearings,and combining the oil film force model of starvation oil lubrication in the steady state,a prediction model for the starvation lubricating temperature of floating ring bearings was established.Taking the inlet lubricating oil flow rate as a variable parameter,the influence of oil supply on the temperature of oil film of inside and outside bearing was analyzed by numerical calculation method,and the oil temperature of oil outlet was measured on the floating ring bearing test rig.The results obtained from the simulation are in good agreement with the test results,which verifies the accuracy of the prediction model.The results show that the oil film temperature of the floating ring bearing is increased with the increasing of the speed,and decreased with the increasing of the oil supply.The temperature rise of inner oil film is obviously higher than that of outer oil film,the temperature of floating ring is increased with the decreasing of oil supply,the temperature of floating ring is basically between inner and outer oil film temperature.