接触问题
我定义了一个自身接触（Dobble Sides）的接触对，计算开始时提示模型错误，如下：At contactpair 1 contactor 1 node 16 has been specified prescribed displacement in contact group 1
At contactpair 1 contactor 1 node 512 has been specified prescribed displacement in contact group 1
At contactpair 1 contactor 1 node 1008 has been specified prescribed displacement in contact group 1
意思是说16、512和1008已经有指定的位移，这个问题该怎样解决？
繁请大家帮帮忙！
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