अरैखिक Dynamic Analysis¶
इस विश्लेषण में tutorial/13_dynamic_beam_nonlinear का डेटा उपयोग किया जाता है।
विश्लेषण मॉडल¶
विश्लेषण का लक्ष्य पिछले अनुभाग के रैखिक Dynamic Analysis वाला वही cantilever beam है।
| मद | विवरण | टिप्पणी | संदर्भ |
|---|---|---|---|
| विश्लेषण प्रकार | अरैखिक dynamic analysis | !SOLUTION,TYPE=DYNAMIC !DYNAMIC,TYPE=NONLINEAR | |
| नोडों की संख्या | 525 | ||
| तत्वों की संख्या | 240 | ||
| तत्व प्रकार | 10-node द्वितीय-क्रम tetrahedral element | !ELEMENT,TYPE=342 | |
| सामग्री गुण नाम | M1 | !MATERIAL,NAME=M1 | |
| सीमा शर्तें | Constraints, concentrated load | !CLOAD | |
| Matrix solver | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
विश्लेषण विवरण¶
Figure 4.12.1 में दिखाई गई constrained surface के displacement को constrain करने और load node पर concentrated load लागू करने के बाद nonlinear dynamic analysis किया जाता है। Analysis control data नीचे दिखाया गया है।
Figure 4.12.1 Cantilever beam की geometry
Analysis Control Data beam.cnt¶
# Control File for FISTR
## Analysis Control
!VERSION
3
!WRITE,RESULT,FREQUENCY=100
!SOLUTION, TYPE=DYNAMIC
!DYNAMIC, TYPE=NONLINEAR
1 , 1
0.0, 0.1, 100000, 1.0000e-8
0.5, 0.25
1, 1, 0.0, 0.0
1000, 3121, 100
1, 1, 1, 1, 1, 1
## Solver Control
### Boundary Condition
!BOUNDARY, GRPID=1, AMP=AMP1
FIX, 1, 3, 0.0
!CLOAD, GRPID=1, AMP=AMP1
CL1, 3, -1.0
### STEP
!STEP, CONVERG=1.0e-3
BOUNDARY, 1
LOAD, 1
### Material
!DENSITY
1.0e-8
!HYPERELASTIC, TYPE=NEOHOOKE
1000.0, 0.00005
### Solver Setting
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=NO,TIMELOG=NO
10000, 1
1.0e-06, 1.0, 0.0
!END
विश्लेषण प्रक्रिया¶
FrontISTR कमांड fistr1 चलाएँ।
(4 threads के साथ चलाएँ।)
विश्लेषण परिणाम¶
Analysis control data में निर्दिष्ट monitoring node (load node, node number 3121) के displacement का time-series plot Microsoft Excel से बनाया गया है और Figure 4.13.1 में दिखाया गया है। Numerical analysis-result data के रूप में monitoring-node displacement output file (dyna_disp_3121.txt) का एक भाग भी नीचे दिखाया गया है।
Figure 4.13.1 Monitoring node का time-series displacement
Monitoring-Node Displacement dyna_disp_3121.txt¶
0 0.0000E+000 3121 0.0000E+000 0.0000E+000 0.0000E+000
100 1.0000E-006 3121 7.6885E-005 -7.3733E-005 -6.0988E-004
200 2.0000E-006 3121 3.3089E-005 -7.5879E-006 -8.2481E-004
300 3.0000E-006 3121 8.9272E-005 -5.6180E-005 -1.2550E-003
400 4.0000E-006 3121 5.8434E-005 -2.9113E-005 -1.9326E-003
500 5.0000E-006 3121 3.3598E-005 -3.7069E-005 -2.6955E-003
600 6.0000E-006 3121 9.2438E-005 -2.9415E-005 -3.4297E-003
700 7.0000E-006 3121 4.4742E-005 -1.9064E-005 -4.2128E-003
800 8.0000E-006 3121 4.2702E-005 -3.7315E-005 -5.2563E-003
900 9.0000E-006 3121 7.9468E-005 4.8283E-006 -6.1239E-003
1000 1.0000E-005 3121 2.5902E-005 -3.1393E-005 -7.1463E-003
1100 1.1000E-005 3121 6.9365E-005 -1.1486E-005 -8.3515E-003
Analysis Result Log 0.log¶
fstr_setup: OK
#### Result step= 1
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 2.7619E-10 3121 -1.4312E-10 1001067
//U2 2.6490E-10 1000353 -5.5027E-10 3121
//U3 2.8724E-10 5121 -1.8462E-07 3121
//V1 5.5239E-02 3121 -2.8624E-02 1001067
//V2 5.2980E-02 1000353 -1.1005E-01 3121
//V3 5.7448E-02 5121 -3.6925E+01 3121
//A1 1.1048E+07 3121 -5.7248E+06 1001067
//A2 1.0596E+07 1000353 -2.2011E+07 3121
//A3 1.1490E+07 5121 -7.3849E+09 3121
//E11 4.3811E-10 1000347 -3.4878E-10 1000709
//E22 2.1254E-09 1000352 -2.1246E-09 1001427
//E33 3.6982E-07 1001067 -3.6953E-07 1000347
//E12 1.1329E-09 1000709 -1.1050E-09 1000352
//E23 3.6823E-07 1000713 -3.6823E-07 1000353
//E31 9.1796E-08 1001031 -2.7687E-07 3121
//S11 1.4231E-02 1001067 -1.4214E-02 1000347
//S22 1.4226E-02 1001067 -1.4210E-02 1000347
//S33 1.5711E-02 1001067 -1.5694E-02 1000347
//S12 2.2266E-06 1000709 -2.2148E-06 1000352
//S23 7.3645E-04 1000713 -7.3646E-04 1000353
//S31 1.8358E-04 1001031 -5.5379E-04 3121
//SMS 1.7350E-03 1000347 3.4921E-43 1201
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 6.5755E-11 176 -1.7785E-10 178
//E22 7.2706E-10 178 -7.2236E-10 119
//E33 1.0581E-09 239 -8.9407E-10 58
//E12 9.6411E-10 119 -4.1741E-10 60
//E23 2.1837E-09 119 -2.2050E-09 178
//E31 2.5589E-10 176 -1.0737E-09 119
//S11 5.7325E-05 178 -6.8164E-05 119
//S22 6.0945E-05 178 -7.0539E-05 119
//S33 6.1843E-05 178 -7.1200E-05 119
//S12 1.9176E-06 119 -8.3014E-07 60
//S23 4.3640E-06 119 -4.4100E-06 178
//S31 5.1153E-07 176 -2.1545E-06 119
//SMS 9.4730E-06 119 1.0387E-41 2
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 2.7619E-10 3121 -1.4312E-10 1001067
//U2 2.6490E-10 1000353 -5.5027E-10 3121
//U3 2.8724E-10 5121 -1.8462E-07 3121
//V1 5.5239E-02 3121 -2.8624E-02 1001067
//V2 5.2980E-02 1000353 -1.1005E-01 3121
//V3 5.7448E-02 5121 -3.6925E+01 3121
//A1 1.1048E+07 3121 -5.7248E+06 1001067
//A2 1.0596E+07 1000353 -2.2011E+07 3121
//A3 1.1490E+07 5121 -7.3849E+09 3121
//E11 4.3811E-10 1000347 -3.4878E-10 1000709
//E22 2.1254E-09 1000352 -2.1246E-09 1001427
//E33 3.6982E-07 1001067 -3.6953E-07 1000347
//E12 1.1329E-09 1000709 -1.1050E-09 1000352
//E23 3.6823E-07 1000713 -3.6823E-07 1000353
//E31 9.1796E-08 1001031 -2.7687E-07 3121
//S11 1.4231E-02 1001067 -1.4214E-02 1000347
//S22 1.4226E-02 1001067 -1.4210E-02 1000347
//S33 1.5711E-02 1001067 -1.5694E-02 1000347
//S12 2.2266E-06 1000709 -2.2148E-06 1000352
//S23 7.3645E-04 1000713 -7.3646E-04 1000353
//S31 1.8358E-04 1001031 -5.5379E-04 3121
//SMS 1.7350E-03 1000347 3.4921E-43 1201
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 6.5755E-11 176 -1.7785E-10 178
//E22 7.2706E-10 178 -7.2236E-10 119
//E33 1.0581E-09 239 -8.9407E-10 58
//E12 9.6411E-10 119 -4.1741E-10 60
//E23 2.1837E-09 119 -2.2050E-09 178
//E31 2.5589E-10 176 -1.0737E-09 119
//S11 5.7325E-05 178 -6.8164E-05 119
//S22 6.0945E-05 178 -7.0539E-05 119
//S33 6.1843E-05 178 -7.1200E-05 119
//S12 1.9176E-06 119 -8.3014E-07 60
//S23 4.3640E-06 119 -4.4100E-06 178
//S31 5.1153E-07 176 -2.1545E-06 119
//SMS 9.4730E-06 119 1.0387E-41 2
...
#### Result step=500000
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 5.2758E-02 5221 -5.2989E-02 1021
//U2 1.0426E-03 1000750 -7.2090E-02 1021
//U3 0.0000E+00 1001 -6.5930E-01 3121
//V1 1.6455E+03 5217 -1.6058E+03 1019
//V2 8.7881E+02 1000132 -2.2448E+03 1221
//V3 1.9455E+02 1000003 -1.7874E+04 1221
//A1 5.7327E+09 5221 -4.0019E+09 1203
//A2 7.0089E+09 3221 -4.3280E+09 1000713
//A3 4.9140E+09 1211 -8.4702E+09 5021
//E11 1.0808E-02 1001104 -1.0904E-02 1003
//E22 3.4008E-03 1203 -3.2574E-03 5203
//E33 3.6321E-03 1103 -3.5530E-03 1001105
//E12 3.4760E-03 1201 -2.9256E-03 1001
//E23 9.1779E-04 1000017 -1.3462E-03 1001
//E31 6.4324E-04 1000750 -2.5756E-03 1101
//S11 5.0236E+01 5201 -5.2624E+01 1001
//S22 1.8815E+01 1001098 -2.2485E+01 1000008
//S33 1.2848E+01 1001098 -2.2485E+01 1000008
//S12 5.3477E+00 1201 -4.5009E+00 1001
//S23 1.4120E+00 1000017 -2.0711E+00 1001
//S31 9.8961E-01 1000750 -3.9625E+00 1101
//SMS 4.4276E+01 1003 6.5308E-01 1000690
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 8.0789E-03 186 -8.0188E-03 1001
//E22 2.1847E-03 8 -2.1148E-03 192
//E33 2.5029E-03 1001 -2.6704E-03 186
//E12 1.1765E-03 62 -1.0144E-03 3
//E23 4.9965E-04 6 -5.1495E-04 66
//E31 -1.2336E-05 125 -1.4721E-03 2
//S11 3.3432E+01 186 -3.4438E+01 2
//S22 7.0191E+00 183 -7.4671E+00 2
//S33 7.6014E+00 183 -7.7370E+00 2
//S12 1.8099E+00 62 -1.5605E+00 3
//S23 7.6870E-01 6 -7.9223E-01 66
//S31 -1.8979E-02 125 -2.2647E+00 2
//SMS 3.1742E+01 186 7.0883E-01 114
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 5.2758E-02 5221 -5.2989E-02 1021
//U2 1.0426E-03 1000750 -7.2090E-02 1021
//U3 0.0000E+00 1001 -6.5930E-01 3121
//V1 1.6455E+03 5217 -1.6058E+03 1019
//V2 8.7881E+02 1000132 -2.2448E+03 1221
//V3 1.9455E+02 1000003 -1.7874E+04 1221
//A1 5.7327E+09 5221 -4.0019E+09 1203
//A2 7.0089E+09 3221 -4.3280E+09 1000713
//A3 4.9140E+09 1211 -8.4702E+09 5021
//E11 1.0808E-02 1001104 -1.0904E-02 1003
//E22 3.4008E-03 1203 -3.2574E-03 5203
//E33 3.6321E-03 1103 -3.5530E-03 1001105
//E12 3.4760E-03 1201 -2.9256E-03 1001
//E23 9.1779E-04 1000017 -1.3462E-03 1001
//E31 6.4324E-04 1000750 -2.5756E-03 1101
//S11 5.0236E+01 5201 -5.2624E+01 1001
//S22 1.8815E+01 1001098 -2.2485E+01 1000008
//S33 1.2848E+01 1001098 -2.2485E+01 1000008
//S12 5.3477E+00 1201 -4.5009E+00 1001
//S23 1.4120E+00 1000017 -2.0711E+00 1001
//S31 9.8961E-01 1000750 -3.9625E+00 1101
//SMS 4.4276E+01 1003 6.5308E-01 1000690
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 8.0789E-03 186 -8.0188E-03 1001
//E22 2.1847E-03 8 -2.1148E-03 192
//E33 2.5029E-03 1001 -2.6704E-03 186
//E12 1.1765E-03 62 -1.0144E-03 3
//E23 4.9965E-04 6 -5.1495E-04 66
//E31 -1.2336E-05 125 -1.4721E-03 2
//S11 3.3432E+01 186 -3.4438E+01 2
//S22 7.0191E+00 183 -7.4671E+00 2
//S33 7.6014E+00 183 -7.7370E+00 2
//S12 1.8099E+00 62 -1.5605E+00 3
//S23 7.6870E-01 6 -7.9223E-01 66
//S31 -1.8979E-02 125 -2.2647E+00 2
//SMS 3.1742E+01 186 7.0883E-01 114