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用有限分析法推导出流体润滑轴承的静动态雷诺方程的计算公式。公式表明,有限分析解比有限差分法和有限元法更为精确、合理。同时,在单元上可对其直接求偏导数,有利于提高动特性系数的计算精度。算例表明,在偏心率ε较大时,有限分析法仍具有稳定的计算精度
The finite element analysis method is used to derive the formula of static and dynamic Reynolds equation of fluid lubricated bearings. The formula shows that the finite analytic solution is more accurate and reasonable than the finite difference method and the finite element method. At the same time, partial derivative can be directly calculated on the element, which is helpful to improve the calculation accuracy of the dynamic characteristic coefficient. The example shows that the finite analysis method still has stable calculation accuracy when the eccentricity ε is large