三维接触问题的接触状态有限元解法及应用

On The Application of FEM to Contact State in 3D Contact Problems

在文献［１］的基础上论述了有摩擦、有间隙的三维弹性接触问题接触状态有限元解法，并通过理论考题进行了验证。最后，在应用部分对汽轮机汽缸法兰连接汽密性进行了计算。

In this paper,has been discussed the application of FEM to the contact state in the 3D elastic contact problems with the existence of friction and clearance on the basis of the reference.the computational results of the Herz problems have shown a good agreement between the numerical solutions and the analytical ones.As a practical example,this paper uses the abovementioned method to solve the problem of the steam tightness of the cylinder flange coupling in turbines and,therefore,some important conclusions have been drawn.