ansys增大位移荷载出现错误

bjtchenjing61

轴向位移施加为1毫米时正常，增大到5毫米就出现错误The value of UY at node 12 is 7.198887091E+11.  It is greater than the  
current limit of 1000000.  This generally indicates rigid body motion   
as a result of an unconstrained model.  Verify that your model is      
properly constrained.   怎么办呢

n3ch

参考下http://www.doc88.com/p-331776091251.html，，，检查下约束，merge节点，，材料属性设置