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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+ _( P0 y4 b0 E8 D0 E/ j% `4 k
问题是这样的：
. C( K T; f- T: `0 C% F- e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。, r4 M$ ]+ @3 W5 ?: v" W
这个是我写的APDL代码2 D1 P" l8 B$ ?
!桁架分析. F0 }8 C. e" a9 Y/ N9 }) g$ [
FINISH$/CLEAR$/PREP7& F# q. f3 ~- ^) ?2 r; m0 g
!方铝截面
7 [6 |. Z2 P% f3 X2 m4 U- c$ RET,1,BEAM4
6 _) e# o6 [& g$ y2 |R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.029 Q( ^ d8 g8 _' v7 [
MP,EX,1,6.9E105 t" k4 r/ m, |3 C' }
MP,PRXY,1,0.33
& ` G& b( Q- K! K2 H! aMP,DENS,1,29005 \( j7 L8 s1 j) b( n6 Z8 h
SECTPYE,1,BEAM,HREC2 d ?7 Z1 V' }+ K' ]
SECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012/ G0 H2 z! [, p J: j W5 s
!桁架线体模型$ M) V0 ]7 j4 L5 i. n1 w3 ~1 Q5 U
K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1( _! k+ l4 F9 u' W: l% `
K,7,0.680,-0.150$K,8,0.680,-0.1203 }- S4 j$ Z6 q. j2 Q) Z
L,1,2$L,2,6$L,4,7$L,2,7$L,5,7
' N2 h5 y; n/ oK,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
" o0 p9 E5 j( f: Y( E! GK,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360# M5 y6 o* h' T! Q0 N% }
K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360. B( f. z% F3 T" o* `
L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
7 `# q: t% M, R/ Z; Z6 hL,3,10$L,12,15$L,14,154 ?; v- I: \: i; i; Z
L,8,16
9 T- d. p% m: |4 ~K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
) _# w) H6 h; y+ q' m8 s6 EL,17,18
. ~* z! l k! n4 s W& l+ m5 ]( gK,19,1,0,-0.180- Q! e9 a' b# J. d8 v$ h
!分网. z: |, `- Z* J( V6 {: `
LESIZE,ALL,,,103 E* W; G; b7 t( p6 R& ^
LMESH,ALL
$ x0 F1 K: X7 I: g, _) PFINISH
% ^5 C/ P2 I) u+ f# [, S; J! z! Z/ n1 z/ ]0 y, K
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^T
+ O; H5 l; ~- E; W在线急等
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发表于 2014-3-5 20:03:48