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初学ansys，各种不懂。想做一个空间桁架受力分析，然后代码写了，导入ansys后加载，实常数，单元类型，材料属性都定义了，就是不求解，也查不到错，求大神们指教T^T7 n) m2 g# F) L2 V$ A# m1 Z
问题是这样的：2 u. Y0 \/ q8 v2 C9 W4 u& }
线L1，L9受Y负方向的均布载荷1000N/m，关键点7,15,19全约束，受重力场的影响下看它的变形和应力。" ?' ?. o$ ?7 y6 k
这个是我写的APDL代码
$ T7 C6 `, ?# I# T: h; [!桁架分析7 p- `$ |! K. m! K, D% z5 t3 j
FINISH$/CLEAR$/PREP7
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ET,1,BEAM46 K" b7 Z& w. J# f9 K3 @
R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02: v; D" ^$ _7 i
MP,EX,1,6.9E10; a- \0 M ?) }$ _$ t8 q( l
MP,PRXY,1,0.33
* |4 U/ S o0 w; [9 e* T8 tMP,DENS,1,2900& Y/ @& j$ [ s& n
SECTPYE,1,BEAM,HREC
- p' O9 t4 h, l( |& M+ n; [4 oSECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012
1 `* P! d( F+ [1 u0 B: q( m!桁架线体模型
% [+ n1 w+ {( F: GK,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1
( j; V% w* b" X& y6 M% x7 dK,7,0.680,-0.150$K,8,0.680,-0.120
4 w$ I9 C f" ~4 }L,1,2$L,2,6$L,4,7$L,2,7$L,5,70 [. ~, {! |1 U7 }7 y
K,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
- H9 T/ k z ^: \: JK,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360
. |( F# p) q0 NK,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360
- T& Z0 m6 W/ ]/ PL,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15/ N, e& @5 W; i0 P
L,3,10$L,12,15$L,14,159 C# U$ v; K& g" e$ J5 [
L,8,16
* M) D; t* v' p& [6 H) m- W5 RK,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
& J. x& S9 U/ k5 t( ?9 W xL,17,18
3 r9 p9 W* w, U0 SK,19,1,0,-0.1803 \0 k0 C* N5 I6 J
!分网' R- X7 Z* G# p3 b* @
LESIZE,ALL,,,10; _4 v8 o9 X1 M; C# o A/ I/ o
LMESH,ALL, h! I! x. b! g6 B8 ~
FINISH
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% }, h# k; P* Z3 O究竟是ansys14的BEAM单元的问题还是我自己的问题，反正我就是不能用梁单元在ansys里求解。用solid95单元的话，这个结构分网困难，难以计算，简化就不求解，求给位大神指点，小弟感激不尽T^T3 _ x. w8 d) Q
在线急等9 {3 X7 S5 j- r' Q! k3 r* J
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发表于 2014-3-5 20:15:49
