UC知道ansys划分网格报出警告Mid-node elements forced to have straight sides
来源：百度知道 编辑：UC知道 时间：2024/05/27 08:51:02
单元选用的是solid117，命令文件如下
/filname,chock_new,1
/title static analysis of the chock
keyw,magedg,1
/prep7
!define the elements and materials
et,1,117
mp,rsvx,1,60e-4 !the iron
TB,BH,1,,40
TBPT,,10,0.018
,,12,0.019
,,15,0.021
,,20,0.037
,,25,0.055
,,30,0.080
,,35,0.110
,,40,0.131
,,45,0.210
,,50,0.315
,,55,0.417
,,60,0.498
,,65,0.580
,,70,0.650
,,75,0.717
,,80,0.760
,,85,0.815
,,90,0.860
,,100,0.938
,,150,1.170
,,200,1.270
,,250,1.335
,,300,1.378
,,400,1.428
,,500,1.463
,,600,1.490
,,700,1.509
,,800,1.522
,,900,1.539
,,1000,1.550
,,2000,1.629
,,3000,1.670
,,4000,1.709
,,5000,1.738
,,6000,1.765
,,7000,1.789
,,8000,1.815
,,10000,1.861
,,20000,1.990
,,50000,2.119
mp,murx,2,1 !the gap
mp,murx,
/filname,chock_new,1
/title static analysis of the chock
keyw,magedg,1
/prep7
!define the elements and materials
et,1,117
mp,rsvx,1,60e-4 !the iron
TB,BH,1,,40
TBPT,,10,0.018
,,12,0.019
,,15,0.021
,,20,0.037
,,25,0.055
,,30,0.080
,,35,0.110
,,40,0.131
,,45,0.210
,,50,0.315
,,55,0.417
,,60,0.498
,,65,0.580
,,70,0.650
,,75,0.717
,,80,0.760
,,85,0.815
,,90,0.860
,,100,0.938
,,150,1.170
,,200,1.270
,,250,1.335
,,300,1.378
,,400,1.428
,,500,1.463
,,600,1.490
,,700,1.509
,,800,1.522
,,900,1.539
,,1000,1.550
,,2000,1.629
,,3000,1.670
,,4000,1.709
,,5000,1.738
,,6000,1.765
,,7000,1.789
,,8000,1.815
,,10000,1.861
,,20000,1.990
,,50000,2.119
mp,murx,2,1 !the gap
mp,murx,
运行了你的程序，这个警告不影响分析结果，因为117是使用边缘法做的电磁分析，而中间节点是其重要作用的，在网格的过程中，系统对没有产生中间节点的一些可能进行了强制转化，使之成为具有中间节点的单元！这是117单元的特征！
解决这种警告的
一种方法是你直接就建立带有中间节点的单元，不过太麻烦，也是可行的！
另一种方法就是禁止这种警告出现：
/NERR,0,0,,1,0
vmesh,all
也就是在网格之前对网格求解进行一个警告的限制，然后施加/NERR,这个命令即可！
I do not know