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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
9 O* [2 v/ K& R3 V" v% e+ n问题是这样的：8 B4 Q: s+ _8 X5 B
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。
4 {4 K9 N8 ?/ R* p: p这个是我写的APDL代码
/ @: A& y8 ^( @7 z!桁架分析3 x/ N9 a2 a: i# g1 E% w& S7 \% w
FINISH$/CLEAR$/PREP7/ G3 {. p" E3 M8 [5 Y# s' U6 g
!方铝截面 R J D; V9 l' D
ET,1,BEAM40 K& `9 w7 ]2 |2 |# ?7 H3 m3 {
R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02+ ~6 D5 ~# {: s$ Z+ e( i
MP,EX,1,6.9E10
# Q3 B9 j" C# t4 a' C# vMP,PRXY,1,0.33, ?% m- n: u+ C) Y B2 T% U) z' L
MP,DENS,1,2900; f5 g: Z4 t# d! p
SECTPYE,1,BEAM,HREC, _: {% Y6 b) s
SECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012, g0 M7 I2 f! b! ]6 }
!桁架线体模型
% @: s7 `" f1 w4 H h/ `K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1
- z& U1 e# L* R9 b- yK,7,0.680,-0.150$K,8,0.680,-0.120
2 z, q( Y4 P3 XL,1,2$L,2,6$L,4,7$L,2,7$L,5,7
$ K' |: W0 ~% ~; A5 p. s' S% JK,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360' Q6 G; w! m! ~- K) Y1 G- J8 D2 ~8 R
K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.3606 X9 v2 X' l3 g0 a. \" L; B
K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.3600 t9 v! @2 [4 a, I( a
L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,155 P9 J, S# Q! _, H/ l; b+ B+ |/ k# d5 H
L,3,10$L,12,15$L,14,15( }/ b& ~$ A* G% V1 P- I7 `. m/ c
L,8,16+ B/ t/ p- L6 Q* b4 x$ L/ B2 }7 n- }& Q3 \
K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360: m4 J E5 F, B$ r" ~
L,17,18
" Q, u$ a7 h2 hK,19,1,0,-0.180/ f. E5 s/ w0 s" [3 z c, s& u& j9 m( f
!分网
# ^+ N/ S$ Q2 O$ u# O1 oLESIZE,ALL,,,10( i" J6 A2 @" k/ r. j# c
LMESH,ALL
; l* c6 T7 N: S% u& {; C& |FINISH
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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( \* t/ m. A7 X
在线急等% \' T% l {% u- f# l2 @
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发表于 2014-3-5 20:15:49
楼主
