前言在机械产品设计制造中,经常遇到大量的接触问题。例如:齿轮的啮合,轮毂和轴的组装,压力容器法兰联接,透平叶根榫头的连接,电机组合转子的组装,机器中轴承的接触等等。长期以来,接触体应力和变形分析就是一个重要的课题。早先,人们对一些简单的弹性接触问题曾用数学分析的方法求出精确解。但是,对于接触问题,尤其是弹塑性接触问题(它是几何非线性和物理非线性的联合非线性问题),如果直 Preface In mechanical product design and manufacturing, often encounter a large number of contact problems. For example: gear meshing, hub and shaft assembly, pressure vessel flange connection, turbine root tenon connection, the assembly of the motor rotor assembly, the machine bearing contact and so on. For a long time, contact stress and deformation analysis is an important issue. Earlier, people used mathematical methods to find exact solutions to some simple elastic contact problems. However, for the contact problem, especially the elasto-plastic contact problem (which is a joint non-linear problem of geometric nonlinearity and physical nonlinearity)