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各位大家好:
0 z# ]* g7 p4 @; \6 N* [/ {下列问题与大家探讨,希望大家给我意见,谢谢!9 u% m1 H G" `5 W
0 h) p; T& f+ T; g$ O, F1.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)
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WARNING' x: p- o; _3 v r1 p1 F# Y& c- [
Potential problems with the rigid links may exist in the model:
# d$ m7 f/ \' p# N6 o& G - Rigid Links are connected to elements which do not have rotational degrees of / d" Z! s! ^6 o
freedom (DOF). This may result in solver errors./ j' u( R- g# ~( Z R0 [: z0 f- U
- Rigid Links connected to other rigid links. (Watch for rigid loops.)- P' W' Z4 _8 D( R& P! X! _& V9 u$ z
- Rigid Links not connected to other elements.+ b5 o; B; U) g/ t, R- r0 n0 U/ S, q
If solver fails, check for inconsistent degrees of freedom.
( w8 E4 Y( p4 j/ O- EERROR
7 f% j c |# k5 z" J; B, a; bDOF 1 of node 4262 is set as dependent by mesh "connection_recipe_1_spider" and mesh$ V# ^1 b+ _4 x; C* Z6 b( {% X( B V$ r
"connection_recipe_1_mesh".# `3 _9 g0 ^3 E6 `: [, @
SUGGESTION: Set parameter "AUTOMPC" to "YES" in the "Solution Attributes..." dialog.) }" h6 F: O _2 d
Total: 1 error and 1 warning
" W+ Y! a+ G" s( o! {/ R2.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?)
: l. ^5 i- v; o+ n7 t A3.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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