Master-Slave Node Method of Processing Plane Node

Keywords: Plane node; Truss structure; Method of master-slave node; Stiffness matrix Abstract: In the process of finite element analysis about space truss structure, the problem of plane node must be dealt with. Generally, there are four methods about plane node, void- rod element method, removal freedom method, adding virtual spring method, method of beam element. In this paper a new treatment method of master-slave node is developed. The plane node unstable direction degrees of freedom and the direction of the master node degrees of freedom are tied together. This method has strong stability, will not affect the distribution of force in the model with high stability calculation.