求助

chairmen001

如图为pipe,z轴上为正;
问题:如何在外园周面加径向约束,内圆周面加径向上小下大的水压?

shaoyu1979

用轴对称平面应变分析可能会好一点。约束和载荷都更容易加
关于上大小小的水压，要使用spatial function函数。

chairmen001

轴对称分析遇到以下问题:
Model errors exist - file D:\Documents and Settings\mxy\桌面\lx2.dat has not been created.
Please resolve conditions indicated by ERROR or ALERT
messages given above.
***WARNING: No element connection for node 1 directions 1, 4, 5, 6
             No element connection for node 2 directions 1, 4, 5, 6
             No element connection for node 3 directions 1, 4, 5, 6
             No element connection for node 4 directions 1, 4, 5, 6
             No element connection for node 5 directions 1, 4, 5, 6
             No element connection for node 6 directions 1, 4, 5, 6
             No element connection for node 7 directions 1, 4, 5, 6
             No element connection for node 8 directions 1, 4, 5, 6
             No element connection for node 9 directions 1, 4, 5, 6
             No element connection for node 10 directions 1, 4, 5, 6
             No element connection for node 11 directions 1, 4, 5, 6
             No element connection for node 12 directions 1, 4, 5, 6
             No element connection for node 13 directions 1, 4, 5, 6
             No element connection for node 14 directions 1, 4, 5, 6
             No element connection for node 15 directions 1, 4, 5, 6
             No element connection for node 16 directions 1, 4, 5, 6
             No element connection for node 17 directions 1, 4, 5, 6
             No element connection for node 18 directions 1, 4, 5, 6
             No element connection for node 19 directions 1, 4, 5, 6
             No element connection for node 20 directions 1, 4, 5, 6
             No element connection for node 21 directions 1, 4, 5, 6
             No element connection for node 22 directions 1, 4, 5, 6
             No element connection for node 23 directions 1, 4, 5, 6
             No element connection for node 24 directions 1, 4, 5, 6
             No element connection for node 25 directions 1, 4, 5, 6
             No element connection for node 26 directions 1, 4, 5, 6
             No element connection for node 27 directions 1, 4, 5, 6
             No element connection for node 28 directions 1, 4, 5, 6
             No element connection for node 29 directions 1, 4, 5, 6
             No element connection for node 30 directions 1, 4, 5, 6
             No element connection for node 31 directions 1, 4, 5, 6
             No element connection for node 32 directions 1, 4, 5, 6
             No element connection for node 33 directions 1, 4, 5, 6
             No element connection for node 34 directions 1, 4, 5, 6
             No element connection for node 35 directions 1, 4, 5, 6
             No element connection for node 36 directions 1, 4, 5, 6
             No element connection for node 37 directions 1, 4, 5, 6
             No element connection for node 38 directions 1, 4, 5, 6
             No element connection for node 39 directions 1, 4, 5, 6
             No element connection for node 40 directions 1, 4, 5, 6
             No element connection for node 41 directions 1, 4, 5, 6
             No element connection for node 42 directions 1, 4, 5, 6
             No element connection for node 43 directions 1, 4, 5, 6
             No element connection for node 44 directions 1, 4, 5, 6
             No element connection for node 45 directions 1, 4, 5, 6
             No element connection for node 46 directions 1, 4, 5, 6
             No element connection for node 47 directions 1, 4, 5, 6
             No element connection for node 48 directions 1, 4, 5, 6
             No element connection for node 49 directions 1, 4, 5, 6
             No element connection for node 50 directions 1, 4, 5, 6
             Message limit reached - above message has been suppressed 291 times.
             Nodal degrees of freedom without element
             connection have been fixed for ADINA input data.
             There may still be degrees of freedom without
             stiffness - see documentation.
***INPUT ERROR: No elements defined for element group 2.

xiaojiulin

多余自由度没去掉？还是删面时没有删掉节点？

chairmen001

抱歉lin老师,我还是不懂!

jiang426

就是说你本来是二维的问题，自由度设定时（control->degree of freedom）,只选定Y、Z方向的位移就可以了，其他的四个可以不选。