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以概率统计中求随机变量函数变异系数的方法为理论基础，并用可靠性工程中的干涉原理对液体动压轴承的承载量系数函数进行可靠性理论计算，进而推导出在不同可靠度值条件下液体动压轴承的最小油膜厚度的可靠性计算公式。
Taking the method of calculating the coefficient of variation of random variable function in probability and statistics as the theoretical basis and using the principle of interference in reliability engineering to calculate the coefficient of bearing capacity of liquid dynamic pressure bearing with reliability theory and deducing the reliability theory under different reliability values Reliability Calculation Formula of the Minimum Film Thickness of Hydrodynamic Bearing.