ANSYS中位重合节点建立耦合关系的命令CPINTF

1、CPINTF, Lab, TOLER

Defines coupled degrees of freedom at an interface.

2、Defines coupled degrees of freedom between coincident nodes (within a tolerance).

 可对在一定容差范围内的重合节点进行自由度耦合。

May be used, for example, to "button" together elements interfacing at a seam, where the seam consists of a series of node pairs.

比如，当在缝隙部位包含一系列节点组，可使用该命令将缝隙交接处的单元扣住。

 One coupled set is generated for each selected degree of freedom for each pair of coincident nodes.

使用该命令对每一对重合节点的特定自由度进行耦合时，一个耦合集产生了。

For more than two coincident nodes in a cluster, a coupled set is generated from the lowest numbered node to each of the other nodes in the cluster.

对于2个以上的重合节点群，一般是最低节点号与该群中的其他节点一一建立耦合集。

 Coupled sets are generated only within (and not between) clusters. If fewer than all nodes are to be checked for coincidence, use the NSEL command to select nodes. Coupled set reference numbers are incremented by one from the highest previous set number. Use CPLIST to display the generated sets. Only nodes having the same nodal coordinate system orientations ("coincident" within a tolerance) are included. Use the CEINTF command to connect nodes by constraint equations instead of by coupling. Use the EINTF command to connect nodes by line elements instead of by coupling.