请问大侠我的这个错误是怎么回事？ 谢谢了
Boundary conditions are specified on inactive dof of 21 nodes. The nodes have been identified in node set WarnNodeBCInactiveDof.The step appears to begin with either a rigid body motion or instability and may result in stabilization damping energy that is large compared to the strain energy. The damping factor could be decreased from the current value of 2.77435E-008 to a suggested value of 3.88483E-016. 在dat文件中看一下WarnNodeBCInactiveDof下面的说明
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