關于ansys14.5的空間桁架

懶趴趴的熊

初學ansys，各種不懂。想做一個空間桁架受力分析，然后代碼寫了，導入ansys后加載，實常數，單元類型，材料屬性都定義了，就是不求解，也查不到錯，求大神們指教T^T
4 O  l) i3 m2 J" ]+ m2 o問題是這樣的：
/ y" C. H* u( P2 \  Q線L1，L9受Y負方向的均布載荷1000N/m，關鍵點7,15,19全約束，受重力場的影響下看它的變形和應力。
& B8 L' ?! ~4 L5 H這個是我寫的APDL代碼
!桁架分析
# d+ U) M3 a; ]FINISH$/CLEAR$/PREP7
0 F- W- d8 t$ q# [! L& s!方鋁截面
" J6 `! Y- N5 O1 y' YET,1,BEAM4
& N$ c) _6 H3 @3 fR,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02
) U1 E/ l( d3 ]; `MP,EX,1,6.9E10
( }( f# A+ L4 j  oMP,PRXY,1,0.33
MP,DENS,1,2900
SECTPYE,1,BEAM,HREC
/ x1 y; F, @" S9 o) BSECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012
!桁架線體模型
K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1
& H! [0 Y! M/ e: Z  z* a1 uK,7,0.680,-0.150$K,8,0.680,-0.120
L,1,2$L,2,6$L,4,7$L,2,7$L,5,7
K,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360
$ Z- c7 D  s: @' ~, ?1 m- K  k, }K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360
L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
L,3,10$L,12,15$L,14,15
L,8,16
K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
( A3 x4 m; D, Q1 mL,17,18
# H; a) f, n4 i3 RK,19,1,0,-0.180
9 s* e3 \% v2 O$ p" q. b' t!分網
1 Q( E6 U7 `9 J3 t& f; ~. MLESIZE,ALL,,,10
3 {) Z. S+ Q, Q! F) MLMESH,ALL
$ K  ?+ J  B( {7 KFINISH
* S& B5 }. ]2 \, V& ^; z) W- F* l9 \$ w
. P% u/ Y2 P/ P7 K1 G究竟是ansys14的BEAM單元的問題還是我自己的問題，反正我就是不能用梁單元在ansys里求解。用solid95單元的話，這個結構分網困難，難以計算，簡化就不求解，求給位大神指點，小弟感激不盡T^T
+ }! x8 ?# Q! y& d# i, Q! a& ?! |/ _在線急等