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各位大家好: L# w0 l& u& Y {7 H9 h2 v* {
下列问题与大家探讨,希望大家给我意见,谢谢!; z. F) g* E6 s9 h0 y" J, _& M: e" ?
% a& {2 z2 J, e+ |# x3 n" S7 y* _9 j' _1.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 z+ @; V' o+ B具体在附件图中.
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Potential problems with the rigid links may exist in the model:6 g& ?- g" ]. \5 L$ f
- Rigid Links are connected to elements which do not have rotational degrees of e) P4 Z5 f' _ F, M/ Q
freedom (DOF). This may result in solver errors.5 o1 m! X( x) S3 o7 X1 _% a: U( Z
- Rigid Links connected to other rigid links. (Watch for rigid loops.)
9 {5 S2 z. e/ t5 ]/ a; g - Rigid Links not connected to other elements.
+ P) q7 e1 x* [8 J! WIf solver fails, check for inconsistent degrees of freedom.
' w- z* n' b9 Z4 O+ D7 IERROR, D" |' p5 |1 l6 Y6 P; m5 B
DOF 1 of node 4262 is set as dependent by mesh "connection_recipe_1_spider" and mesh/ I# H U7 {; q
"connection_recipe_1_mesh". ?' ~( @* q+ L
SUGGESTION: Set parameter "AUTOMPC" to "YES" in the "Solution Attributes..." dialog. s3 U) E' _' @0 h. M: Z/ V$ D
Total: 1 error and 1 warning& o( s- A+ ^3 Q0 `6 I3 T
2.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 H0 t' M L1 J f* L; t& n
3.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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