我在课程设计中建立一个模型,无法运行结果在信息窗口显示了下面的一部分警告:
MULTI-FRONTAL SOLUTION HAS BEEN COMPLETED.
WARNING : NODE NO. 11 DZ DOF HAS A SINGULAR DIAGONAL = 0.000
WARNING : EQUATION NO. 15
WARNING : NODE NO. 11 DX DOF HAS A SINGULAR DIAGONAL = 0.000
WARNING : EQUATION NO. 13
WARNING : NODE NO. 11 RX DOF MAY BE SINGULAR.
WARNING : EQUATION NO. 16
WARNING : NODE NO. 11 RZ DOF MAY BE SINGULAR.
WARNING : EQUATION NO. 18
。。。。。。。。。。
请问我建模的时候可能出错在哪里啊??谢谢!!
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