The contact model for ball -plate is established by using Patran,and the contact stress and deformation of ball-plate are numerically simulated and analyzed in Nastran.The unequal problem is discussed about maximum contact stress and deformation of two bodies at the same contact point,and the reasonable mesh partition method is given.The feasibility of method is verified by comparing analytical solution of bearings.%利用 Patran 建立球－板接触模型，在 Nastran 中对球－板的接触应力和变形进行数值模拟分析。讨论了两物体在同一接触点最大接触应力、接触变形不等的问题，得出合理的网格划分方法。并通过与轴承解析解的对比，验证了方法的可行性。
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