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各位大家好:
0 O4 Z) v. Q' ~5 O1 T3 a下列问题与大家探讨,希望大家给我意见,谢谢!
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. \2 j* v: I! K" h1 r$ w1.描述:两个U型槽,一个开口大,一个开口小,正好对着焊接,有两对相接的触面,在接触外进行焊接,中间形成中空形状。我用一维单元进行边到面的连接,出现如下情况,计算不了。请教各位了。(我按照SugGESTION去修改,却找不到要修改的地方)5 ^ B" @# j x2 s6 v1 S% d- ^
具体在附件图中.' h+ {- y+ q# J! O
WARNING7 _8 S" `7 f/ u8 p' {
Potential problems with the rigid links may exist in the model:' B+ E+ y- x+ Q; v2 a3 c5 l
- Rigid Links are connected to elements which do not have rotational degrees of ) v7 [4 P- c5 l) x
freedom (DOF). This may result in solver errors.3 j/ ~, J7 F% m
- Rigid Links connected to other rigid links. (Watch for rigid loops.)
1 W3 N* W/ e0 R4 s - Rigid Links not connected to other elements.) Q% ?, @7 Z6 p# I9 i
If solver fails, check for inconsistent degrees of freedom.0 @; X( ]2 A$ B; }4 @ o
ERROR2 g8 P' S( U. i+ m9 \0 C
DOF 1 of node 4262 is set as dependent by mesh "connection_recipe_1_spider" and mesh
% F) `8 I- M9 q: n"connection_recipe_1_mesh".
: N3 ]- e% o# C* |( LSUGGESTION: Set parameter "AUTOMPC" to "YES" in the "Solution Attributes..." dialog.
6 k) p2 j% U' V. `$ |; mTotal: 1 error and 1 warning
. K+ m) n8 i; ]) _ m2.我的目的是想用上述模型进行焊接模拟,两对接触面用“Surface-to-Surface Guling”和两对接触面用“Mesh Mating Condition”进行建模。仿真结果相差很小。请问用这种方法模拟焊接,对吗?有没有其它方法模拟两块板料的焊接问题?(肯定有,请大家赐教赐教?)
3 P& Y4 ~3 m' s& f* ^3 G0 X3.我在模型上施加力,在线上施加力和在面上施加力,结果还是有一些差别的,请教是否两种方法都可以用?(在线上施加力和在面上施加力,其力的大小是一样的,在面上其实等于施加了压强) |
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