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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
|4 V9 }! t8 P2 ^! p问题是这样的：, X. F3 l6 f, J; R. N
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。) m: C; K& D( A; M, k c0 b
这个是我写的APDL代码' G3 ^1 L1 o' O" Q
!桁架分析0 |: \. e! F7 D* w" E
FINISH$/CLEAR$/PREP7" Q P; q/ i7 y4 d% r4 c$ B
!方铝截面
# L U+ Q7 D9 C1 ^$ T' iET,1,BEAM47 v0 B% f2 z% h) S# ?
R,1,0.902E-4,0.534E-8,0.534E-8,0.02,0.02
! i* I3 J* f7 A- VMP,EX,1,6.9E10
1 y6 w$ u: F) nMP,PRXY,1,0.33
8 z+ v8 \( [) _" ^; MMP,DENS,1,2900
. ]4 x; A1 f* A- `$ q: ]2 e) _SECTPYE,1,BEAM,HREC
/ [# F- Z J0 c$ F% ESECDATA,0.02,0.02,0.0012,0.0012,0.0012,0.0012
* f7 [2 h, C$ @7 x& V6 x6 d!桁架线体模型
5 R8 x$ N" n& B x# _& v7 \K,1$K,2,0.140$K,3,0.360$K,4,0.680$K,5,0.930$K,6,1+ Q. }" |6 S; y2 \7 f" V2 ?
K,7,0.680,-0.150$K,8,0.680,-0.120
) A1 H; ? v. @6 p( b1 n: TL,1,2$L,2,6$L,4,7$L,2,7$L,5,7+ L9 R) s& o* k6 O% e8 w
K,9,0,0,-0.360$K,10,0.360,0,-0.360$K,11,1,0,-0.360# e$ s1 t& x3 d7 q* @8 h
K,12,0.140,,-0.360$K,13,0.680,0,-0.360$K,14,0.930,0,-0.3605 R4 x$ y3 [1 k& a9 @ j
K,15,0.680,-0.150,-0.360$K,16,0.680,-0.120,-0.3607 c. q# o+ |5 K1 x" V
L,1,9$L,3,10$L,6,11$L,9,12$L,12,11$L,13,15
9 S- P; E+ `1 yL,3,10$L,12,15$L,14,159 @: Y5 Q6 P+ \4 _
L,8,16! Q# V+ y1 w* e7 H$ K
K,17,0.356,-0.060$K,18,0.356,-0.060,-0.360# `0 O* S! U# E
L,17,18
3 @ k {$ o2 F9 n% x1 c0 AK,19,1,0,-0.1803 V! j+ I* \2 j/ i9 m
!分网4 l- [ F' \0 f0 C. O
LESIZE,ALL,,,10/ E/ l* A# h% l3 Y- x b z
LMESH,ALL5 K. ~) m6 H- f# m* G# B- k
FINISH
/ V' X/ N8 ]/ k* O8 H4 N7 [! e2 }$ | s4 P! p& K/ g2 I
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! b. O# o+ @3 r: p9 o, T
在线急等# z5 v) ]# M, T9 o
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发表于 2014-3-5 20:15:49
