abaqus错误一直是这个,该怎么解决呀
1.DEGREE OF FREEDOM 11 AND AT LEAST ONE OF DEGREES OF FREEDOM 1 THRU 6MUST BE ACTIVE IN THE MODEL FOR *COUPLED TEMP-DISP. CHECK THE
PROCEDURE AND ELEMENT TYPES USED IN THIS MODEL.
2.INVALID LOAD TYPE ON ELEMENT 1121 INSTANCE SHANGDIAN-1. LOAD TYPE CS
IS NOT VALID FOR ELEMENT TYPE C3D20R
3.A DISTRIBUTED ELECTRICAL CURRENT HAS BEEN SPECIFIED, BUT THERE ARE
NO ELECTRIC CONDUCTION ELEMENTS IN THE MODEL
我在模型上面加了个表面,用的分析步是热-电-结构。是在点焊的电极上表面加的电流。网上说改网格族,我基本上改完了还是这个情况
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