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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^T
# y5 f! p: D0 X4 E/ X! a问题是这样的：
0 G, G6 p$ Q% G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。9 }! D* @0 q; u; A$ j! v6 s
这个是我写的APDL代码
: Y' y) \& i- q7 k2 C5 w7 \!桁架分析 [/ v) R2 V. i
FINISH$/CLEAR$/PREP7$ }4 r( z5 G) I* j1 m
!方铝截面6 G2 }) K& l2 L3 ^9 I
ET,1,BEAM4
* @* J( Z% D6 E, fR,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02
# p q: D& i( Y4 P B7 G KMP,EX,1,6.9E102 w7 Q4 ^* q% r2 P
MP,PRXY,1,0.33 G$ L1 U1 H; ~, D: B+ a; x
MP,DENS,1,2900- s4 s( ^6 S1 U9 I
SECTPYE,1,BEAM,HREC
0 @9 m/ T8 i3 M, p+ m+ p# ESECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012
: S+ o1 D4 D$ J* x5 w; j7 z1 a!桁架线体模型
( J% x3 U2 m. P4 L( P4 D5 p6 G1 c: B% LK,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,18 r2 m$ a& R4 t8 ?. e5 G& K# j
K,7,0.680,-0.150$K,8,0.680,-0.120- k5 l, w" D$ v8 M# x9 p/ J
L,1,2$L,2,6$L,4,7$L,2,7$L,5,7
, Q& R# |- [. A1 T3 b- X4 ^3 cK,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
- D9 ?7 a' C% R7 B1 y' M) k- ]K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360
5 Q8 U# g& n% h* DK,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360/ S7 P5 w- d& f3 r+ S- n
L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
' \1 ]" _2 ~# t8 H8 p6 c4 vL,3,10$L,12,15$L,14,15' M$ t# i' m7 _+ s" y0 r8 I
L,8,16
/ t- u( h+ }5 T- L0 s# ?! I6 U3 yK,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
6 {+ }8 J& N, ~2 z! d0 u, qL,17,18
$ U. ^; m9 a. X* U$ f! jK,19,1,0,-0.180
3 I, Y( T& e) r9 g6 ?; V9 u/ }. \!分网% E1 q% g% n7 r. W H* i7 K
LESIZE,ALL,,,10
1 K' l4 ?3 ^5 d+ U' Q4 S) [LMESH,ALL1 _) | N; R! Y! o
FINISH
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9 Q6 Z+ R* n* J. I1 |5 J- a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^T8 t5 _7 r" D5 [. B4 k' L* D2 J9 W
在线急等& t. m) {1 J& g
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发表于 2014-3-5 20:15:49
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