|
各位大家好:
a6 @+ Z; H* `' R2 e下列问题与大家探讨,希望大家给我意见,谢谢!/ ]. f* w$ F2 @
) K2 J1 X6 H3 N; l! q* ~# Q- A1.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)
- x# `" b! n" t* o8 @, S具体在附件图中.
7 M" S! k! ^4 O, ^2 u* xWARNING6 \; p9 f$ v$ L$ ~5 ~( F! ^3 c
Potential problems with the rigid links may exist in the model:+ t; X, g T; u1 @* i
- Rigid Links are connected to elements which do not have rotational degrees of
- }; z) H. Z3 N! s: N freedom (DOF). This may result in solver errors.
. X- H9 W# ^% W6 Y0 \2 V. A7 v - Rigid Links connected to other rigid links. (Watch for rigid loops.)
1 ]1 V% X* w' N8 _ - Rigid Links not connected to other elements.
/ s9 P" @$ p9 X8 ] O2 `: m4 CIf solver fails, check for inconsistent degrees of freedom.
6 W! R5 G! `2 M& C8 T" e8 B1 WERROR
! S+ Y: w) [- P9 [3 |DOF 1 of node 4262 is set as dependent by mesh "connection_recipe_1_spider" and mesh
0 q/ Q' Y; j0 A& j"connection_recipe_1_mesh".0 |9 Q& ~$ U$ G1 [: i5 x5 x- v
SUGGESTION: Set parameter "AUTOMPC" to "YES" in the "Solution Attributes..." dialog." v" i; o6 J& ~( N" t) p
Total: 1 error and 1 warning
$ Q9 z9 B# H0 v, o' J9 j2.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?)
9 P6 u$ s }" \: E3.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) |
|