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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^T2 J$ s7 h7 [! R7 Q
问题是这样的：
) h' Z: S) b7 i( @" w$ B. X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。
& t! E) `1 S+ o! p这个是我写的APDL代码8 H% [6 s% ~1 ~! c+ V0 z' V
!桁架分析
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ET,1,BEAM4
! E# F, C- h6 E0 R) w4 q# l/ d- KR,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.021 `1 y. M7 |2 D6 C* k3 L
MP,EX,1,6.9E107 _+ D" s/ ]3 m( F* {+ t# X
MP,PRXY,1,0.33
2 \: T) [: w& G- {MP,DENS,1,2900
% W& y; Z* b/ zSECTPYE,1,BEAM,HREC; k5 t6 n) ]6 E+ [: q ]9 h/ [6 z$ [
SECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012& @ O' @7 f q& M9 q! `
!桁架线体模型
% n5 ]* x3 L' q, TK,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1
0 H$ r7 a/ A A9 s% hK,7,0.680,-0.150$K,8,0.680,-0.120
: ~2 t% o* d3 |! a1 T4 yL,1,2$L,2,6$L,4,7$L,2,7$L,5,7
7 E% p3 z3 G5 C6 g: l2 g6 zK,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.3600 i! Y4 _0 p i" i% M/ Z$ h o
K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360- R6 P" C8 I- J0 e2 V
K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360
6 b# r8 \! e* ~6 z# M" HL,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,157 \2 m& I* {2 D& k9 G) ~9 k6 {
L,3,10$L,12,15$L,14,15
2 Q% f( C6 t1 EL,8,163 y, h1 t' m6 ]. Z# x+ v& t$ s& q
K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360
; k5 ?/ h% F0 Q9 w) G0 m0 oL,17,185 U% v- N" e* P# A
K,19,1,0,-0.180
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, r! L2 D6 e: k5 S6 M rLESIZE,ALL,,,108 V" H* j. w6 x! C* I
LMESH,ALL
& x' }6 o; R4 t3 J0 eFINISH
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究竟是ansys14的BEAM单元的问题还是我自己的问题，反正我就是不能用梁单元在ansys里求解。用solid95单元的话，这个结构分网困难，难以计算，简化就不求解，求给位大神指点，小弟感激不尽T^T9 g5 \. ?$ ? n9 G
在线急等
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发表于 2014-3-5 20:03:48