Influence of temperature on nonlinear dynamic characteristics of spiral-grooved gas-lubricated thrust bearing-rotor systems for microengine

► The nonlinear behavior of the micro gas spiral-grooved thrust bearing is studied. ► Influence of temperature on the gas viscosity and the rarefaction are considered. ► The MGL model is systematically coupled with the kinetic equations. ► The temperature has complex effects on the performance of the micro bearing system.