Chapter 7
ANSYS命令: 解題與後處理
Solution and Postprocessing
Contents
7.1
負載
Loads
7.2
解題與解題參數的設定
Solution and Solution Options
7.3
一般後處理
General Postprocessing
7.4
歷時後處理
Time-History Postprocessing
7.5
練習題: 簡支橋樑設計
Exercise: Design of a Simply Supported Bridge
2/28
第7.1節
負載
Loads
3/28
7.1.1 Loads on Analysis
Model (1/5)
DOF Constraints
01
02
03
D, NODE, Lab, VALUE
DSYM, Lab, Normal, KCN
DCUM, Oper
4/28
7.1.1 Loads on Analysis
Model (2/5)
Concentrated Forces
(Pointed Forces)
04
05
F, NODE, Lab, VALUE
FCUM, Oper
5/28
7.1.1 Loads on Analysis
Model (3/5)
Distributed Forces
06
07
08
09
SF, Nlist, Lab, VALUE
SFE, ELEM, LKEY, Lab, KVAL, VAL1
SFBEAM, ELEM, LKEY, Lab, VALI, VALJ
SFCUM, Lab, Oper
6/28
7.1.1 Loads on Analysis
Model (4/5)
Body Forces
10
11
12
13
14
15
16
17
BF, NODE, Lab, VAL1
BFE, ELEM, Lab,, VAL1
BFUNIF, Lab, VALUE
TUNIF, TEMP
TREF, TREF
BFCUM, Lab, Oper
ACEL, ACELX, ACELY, ACELZ
OMEGA, OMEGX, OMEGY, OMEGZ, KSPIN
7/28
7.1.1 Loads on Analysis
Model (5/5)
Stress Stiffening and Spin Softtening
8/28
7.1.2 Loads on Solid
Model (1/2)
01
02
03
04
DK, KPOI, Lab, VALUE,, KEXPND
DL, LINE, AREA, Lab, Value1
DA, AREA, Lab, Value1
DTRAN
101 RECTNG, -5, 5, -5, 5
102
103
104
105
106
107
108
109
110
111
112
PCIRC, 2
ASBA, 1, 2
CSYS, 1
ESIZE, 1
ET, 1, PLANE42
AMESH, ALL
KSEL,, LOC, X, 2
DK, ALL, ALL, 0,, 1
DTRAN
/PBC,U,,1
EPLOT
9/28
7.1.2 Loads on Solid
Model (2/2)
05
06
07
08
09
10
11
12
FK, KPOI, Lab, VALUE
FTRAN
SFL, LINE, Lab, VALI, VALJ
SFA, AREA, LKEY, Lab, VALUE
SFTRAN
BFK, KPOI, Lab, VAL1
BFTRAN
SBCTRAN
10/28
7.1.3 Initial Conditions
01 IC, NODE, Lab, VALUE, VALUE2
02 ICLIST, NODE1, NODE2, NINC, Lab
NSEL, ALL
IC, ALL, UX,, V0
...
SOLVE
11/28
第7.2節
解題與解題參數的設定
Solution and Solution Options
12/28
7.2.1 Solution Options
01
02
03
04
05
06
07
08
09
10
ANTYPE, Antype
SOLCONTROL, Key
NLGEOM, Key
TIME, TIME
DELTIM, DTIME
NSUBST, NSBSTP
AUTOTS, Key
KBC, KEY
OUTRES, Item, FREQ, Cname
OUTPR, Item, FREQ, Cname
13/28
7.2.2 Solve the Model
01 SOLVE
14/28
7.2.3 *GET Command
01
*GET, Par, Entity, ENTNUM, Item1, IT1NUM
01
02
03
04
*GET, CPUTIME1, ACTIVE,, TIME, CPU
SOLVE
*GET, CPUTIME2, ACTIVE,, TIME, CPU
CPUTIME = CPUTIME2 – CPUTIME1
15/28
第7.3節
一般後處理
General Postprocessing
16/28
7.3.1 PLESOL & PLNSOL
ELEMENT= 1 SOLID45
NODE
1
3
13
12
58
59
259
237
SX
-174.6
-77.2
-71.0
-165.3
-167.6
-84.0
-78.1
-158.4
ELEMENT= 2 SOLID45
NODE
3
4
14
13
59
78
278
259
SX
-78.7
0.7
0.1
-71.6
-71.0
-6.7
-7.6
-64.1
ELEMENT= 3 SOLID45
...
17/28
7.3.2 /POST1 Basic Commands
01
02
03
04
05
06
07
08
09
10
11
12
SET, Lstep, SBSTEP,,, TIME
PLDISP, KUND
PLESOL, Item, Comp, KUND
PLNSOL, Item, Comp, KUND
PLVECT, Item
PRESOL, Item
PRNSOL, Item
PRVECT, Item
PRRSOL, Lab
ANDSCL, NFRAM, DELAY, NCYCL
ANCNTR, NFRAM, DELAY, NCYCL
ANMODE, NFRAM, DELAY, NCYCL
18/28
7.3.3 Element Table
01
02
03
04
ETABLE,
ETABLE,
ETABLE,
PRETAB,
ELEM
1
2
3
4
5
6
7
8
...
...
SX, S, X
SXY, S, XY
SEQV, S, EQV
SX, SXY, SEQV
SX
-122.0
-37.4
37.2
122.1
-122.0
-37.4
37.2
122.1
...
SXY
-9.5
-5.2
-5.3
-9.8
-9.5
-5.2
-5.3
-9.8
...
SEQV
100.7
31.4
31.6
101.1
100.7
31.4
31.6
101.1
...
19/28
7.3.4 Element Tables
Commands
01
02
03
04
05
06
ETABLE,
PLETAB,
PRETAB,
ESORT,,
EUSORT
SSUM
Lab, Item, Comp
Itlab, Avglab
Lab1, Lab2, ..., Lab9
Lab, ORDER
20/28
7.3.5 Pathing
01
02
03
04
05
PATH, HEIGHT, 2
PPATH, 1,, 0, H/2, 0
PPATH, 2,, 0, -H/2, 0
PDEF, SX, S, X
PLPATH, SX
21/28
7.3.6 Path Operations
Commands
01
02
03
04
05
PATH, NAME, nPts
PPATH, POINT, NODE, X, Y, Z
PDEF, Lab, Item, Comp, Avglab
PLPATH, Lab1, Lab2, …, Lab6
PRPATH, Lab1, Lab2, …, Lab6
22/28
7.3.7 Graphics Control Commands
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
/PNUM, Label, KEY
/PBC, Item,, KEY
/PSF, Item, Comp, KEY
/TRIAD, Lab
/PLOPTS, Label, KEY
/COLOR, Lab, Clab
/CONTOUR,,, VMIN, VINC, VMAX
/VIEW,, XV, YV, ZV
/VUP,, Label
/VSCALE,, VRATIO
/CPLANE, KEY
/TYPE,, Type
/TRLCY, Lab, TLEVEL
/GRAPHICS, Key
/AXLAB, Axis, Lab
/GRID, KEY
/XRANGE, XMIN, XMAX
/YRANGE, YMIN, YMAX
23/28
7.3.8 /POST1 “*GET Items”
01
*GET, Par, Entity, ENTNUM, Item1, IT1NUM
*GET, SMAX, SORT,, MAX
*GET, EMAX, SORT,, IMAX
24/28
第7.4節
歷時後處理
Time-History Postprocessing
25/28
7.4.1 /POST26 Basic Commands
01
02
03
04
05
06
07
08
09
10
11
NSOL, NVAR, NODE, Item, Comp, Name
ESOL, NVAR, ELEM, NODE, Item, Comp, Name
RFORCE, NVAR, NODE, Item, Comp, Name
PLVAR, NVAR1, NVAR2, ..., NVAR10
PRVAR, NVAR1, NVAR2, ..., NVAR6
XVAR, N
EXTREM, NVAR
ESOL, 2, n,, EPEL, EQV
PLCPLX, KEY
ESOL, 3, n,, S, EQV
PRCPLX, KEY
XVAR, 2
PLTIME, TMIN, TMAX
PLVAR, 3
PRTIME, TMIN, TMAX
26/28
7.4.2 /POST26 “*GET Items”
01
*GET, Par, Entity, ENTNUM, Item1, IT1NUM
*GET, SMAX, VARI, 3, EXTREM, VMAX
*GET, TMAX, VARI, 3, EXTREM, TMAX
27/28
第7.5節
練習題: 簡支橋樑設計
Exercise: Design of a Simply Supported Bridge
28/28