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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
& @5 H" e$ C l' o4 J' b问题是这样的：. J) X7 n/ C, d/ i
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。( V2 `: N2 L7 N' g8 j
这个是我写的APDL代码" y9 U/ d, ?. I$ t
!桁架分析, e* u3 |& w6 y1 k/ `# j
FINISH$/CLEAR$/PREP7
/ S* S: Y# i+ |$ k2 D!方铝截面 y& d9 H! d4 K5 b* e
ET,1,BEAM4. P, g* J. ~- J7 W8 C: }% Y
R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02
0 n( [ | J3 ^% J, nMP,EX,1,6.9E10) h4 F4 v. Z4 o5 p. G
MP,PRXY,1,0.33( h% E% H+ V9 ? y; @- ]5 E
MP,DENS,1,2900
' ^3 V* _7 `3 bSECTPYE,1,BEAM,HREC
. P7 T4 c" ~' cSECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012" {9 K4 t. Q1 i% Y+ L! g) @; F# a
!桁架线体模型! y5 o% c+ B, A7 Y0 w
K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,15 u1 W4 M# I7 C7 @7 [
K,7,0.680,-0.150$K,8,0.680,-0.120. L. Q, g9 O. ^; w6 w
L,1,2$L,2,6$L,4,7$L,2,7$L,5,7
; h: i1 ]5 a z+ R5 w% n6 t- [K,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360
; M. F8 R' [+ p1 L) Y4 H: U. xK,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.360; u# |" {( z1 r! [+ X G# r! S
K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.360
0 m d8 q5 q; v: O5 N2 h: bL,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
5 ?2 J8 ?( ^; z* ?L,3,10$L,12,15$L,14,15
7 ]: v @) g9 S1 r# [0 aL,8,16
- Z! g8 O/ d# S3 ]: RK,17,0.356,-0.060$K,18,0.356,-0.060,-0.360 ], ]# ?! c. q6 u" E/ `( M
L,17,18
% | w; V2 E# `# n( cK,19,1,0,-0.180& A \+ l- z! ` n: }
!分网
, a0 K( U+ b+ G& n! xLESIZE,ALL,,,10/ a4 J2 P$ g1 a8 ^; f3 a8 R, r* T4 n. i: c+ l
LMESH,ALL
8 h& s8 I, q3 b7 s& [( vFINISH. o! g: _& {$ V8 ]" \+ O
; n& t6 F" W# A' ]' O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/ E. ~7 H0 {; \- I3 v/ H3 P3 V) N
在线急等
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发表于 2014-3-5 20:15:49
