本文综合流体力学、热力学、转子动力学等理论，建立冲击载荷作用下动静压轴承热流体数学模型，运用有限差分法和欧拉法等计算并分析冲击载荷对轴承热流体性能的影响。结果表明：动静压轴承受到冲击后承载力等参数呈现正弦变化趋势，轴心轨迹为闭合曲线；方向相反、幅值相等的冲击载荷使得动静压轴承承载力和轴心轨迹呈现对称变化趋势，冲击幅值每提高120N，水平承载力变化峰值增加33%-47%，竖直承载力变化峰值提升1.9%-2.3%；冲击载荷及轴承结构参数对最小油膜厚度影响显著，冲击幅值每增加120N，最小油膜厚度变化约0.3μm；计入温度场分布动静压轴承特性参数与等温模型相比，最大油膜压力值降低2%，最小油膜厚度降低7%，轴心轨迹变化趋势一致，但初始位置相差较大。

This article integrates theories of fluid mechanics, thermodynamics, and rotor dynamics to establish a mathematical model for the pressure field, temperature field, and characteristic parameters of hybrid bearings under shock loads. The finite difference method and Euler method are used to calculate and analyze the impact of shock loads on the thermal fluid performance of bearings. The results show that the axis trajectory of the hybrid bearings after being subjected to shock is a closed curve, and the parameters such as bearing capacity show a sinusoidal variation trend. Shock loads with opposite directions and equal amplitudes make the bearing capacity and axis trajectory of the hybrid bearing show a symmetrical variation trend. For every 120N increase in shock amplitude, the peak value of horizontal bearing capacity change increases by about 33%-47%, and the peak value of vertical bearing capacity change increases by about 1.9%-2.3%; When the shock parameters or structural parameters of the bearing change, the minimum oil film thickness of the bearing changes significantly. For example, for every 120N increase in shock amplitude, the minimum oil film thickness changes by about 0.3 μ m; The maximum oil film pressure, which takes into account the thermal effect, is reduced by about 2% compared to the results of the isothermal model, the minimum oil film thickness is reduced by about 7%. The initial position of the axis trajectory changes significantly, but the trend of parameter changes remains basically unchanged.