የድግግሞሽ ምላሽ ትንተና¶
ይህን ትንተና ለማካሄድ በtutorial/17_freq_beam ያለውን ውሂብ ይጠቀሙ።
የትንተና ዒላማ¶
የትንተና ዒላማው ካንቲሊቨር ቢም ነው፤ ቅርጹ በስዕል 4.17.1 እና የሜሽ ውሂቡ በስዕል 4.17.2 ቀርቧል።
| ንጥል | ይዘት | ማስታወሻ | ማጣቀሻ |
|---|---|---|---|
| የትንተና ዓይነት | የድግግሞሽ ምላሽ ትንተና | !SOLUTION,TYPE=EIGEN !SOLUTION,TYPE=DYNAMIC | |
| የኖዶች ብዛት | 55 | ||
| የኤለመንቶች ብዛት | 126 | ||
| የኤለመንት ዓይነት | 4-ኖድ ቴትራሄድራል አንደኛ-ደረጃ ኤለመንት | !ELEMENT,TYPE=341 | |
| የቁሳቁስ ባህሪ ስም | Material-1 | !MATERIAL,NAME=Material-1 | |
| የድንበር ሁኔታ | ገደብ, የተከማቸ ጭነት, አይገን እሴት | !EIGENREAD | |
| የማትሪክስ መፍትሔ ዘዴ | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
ስዕል 4.17.1 የካንቲሊቨር ቢም ቅርጽ
ስዕል 4.17.2 የካንቲሊቨር ቢም የሜሽ ውሂብ
የትንተና ይዘት¶
የትንተና ዒላማው ካንቲሊቨር ቢም አንዱ ጫፍ ሙሉ በሙሉ ይገደባል፣ በተቃራኒው ጫፍ ላይ ባሉ 2 ኖዶች የተከማቸ ጭነት በመጨመር የድግግሞሽ ምላሽ ትንተና ይካሄዳል።
በሂደቱ መጀመሪያ በተመሳሳይ የድንበር ሁኔታዎች እስከ 10ኛ ሞድ ድረስ ሞዳል ትንተና ይካሄዳል፣ ከዚያም እስከ 5ኛ ሞድ ያሉ አይገን እሴቶችና አይገን ቬክተሮች በመጠቀም ትንተናው ይካሄዳል። ለድግግሞሽ ምላሽ ትንተናው የትንተና ቁጥጥር ውሂብ ከዚህ በታች ቀርቧል።
የትንተና ቁጥጥር ውሂብ beam_eigen.cnt¶
# የFISTR መቆጣጠሪያ ፋይል
!VERSION
3
!WRITE,RESULT
!WRITE,VISUAL
!SOLUTION, TYPE=EIGEN
!EIGEN
10, 1.0E-8, 60
!BOUNDARY
_PickedSet4, 1, 3, 0.0
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=NO,TIMELOG=YES
10000, 1
1.0e-8, 1.0, 0.0
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
የትንተና ቁጥጥር ውሂብ beam_freq.cnt¶
# የFISTR መቆጣጠሪያ ፋይል
!VERSION
3
!WRITE,RESULT
!WRITE,VISUAL
!SOLUTION, TYPE=DYNAMIC
!DYNAMIC
11 , 2
14000, 16000, 20, 15000.0
0.0, 6.6e-5
1, 1, 0.0, 7.2E-7
10, 2, 1
1, 1, 1, 1, 1, 1
!EIGENREAD
eigen_0.log
1, 5
!BOUNDARY
_PickedSet4, 1, 3, 0.0
!FLOAD, LOAD CASE=2
_PickedSet5, 2, 1.
!FLOAD, LOAD CASE=2
_PickedSet6, 2, 1.
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=NO,TIMELOG=YES
10000, 1
1.0e-8, 1.0, 0.0
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
የትንተና ሂደት¶
መጀመሪያ፣ ለሞዳል ትንተና የሚውለውን አጠቃላይ የቁጥጥር ውሂብ hecmw_ctrl_eigen.dat ወደ hecmw_ctrl.dat ቀይረው ሞዳል ትንተናውን ያካሂዱ።
ቀጥሎ፣ ለድግግሞሽ ምላሽ ትንተና የሚውለውን አጠቃላይ የቁጥጥር ውሂብ hecmw_ctrl_freq.dat ወደ hecmw_ctrl.dat እና የሞዳል ትንተና ውጤት ሎግ ፋይል 0.log ወደ eigen_0.log (በድግግሞሽ ምላሽ ትንተና ቁጥጥር ውሂብ ውስጥ ተገልጿል) ቀይረው የድግግሞሽ ምላሽ ትንተናውን ያካሂዱ።
cp hecmw_ctrl_eigen.dat hecmw_ctrl.dat
fistr1 -t 4
mv 0.log eigen_0.log
cp hecmw_ctrl_freq.dat hecmw_ctrl.dat
fistr1 -t 4
የትንተና ውጤቶች¶
በትንተና ቁጥጥር ውሂቡ የተገለጸውን የክትትል ኖድ (ኖድ ቁጥር 1) ድግግሞሽ እና የመፈናቀል አምፕሊቱድ ግንኙነት በMicrosoft Excel በመፍጠር በስዕል 4.17.3 ያሳያል። እንዲሁም እንደ የትንተና ውጤት ቁጥራዊ ውሂብ፣ ከውጤት ሎግ ፋይሉ አንድ ክፍል ከዚህ በታች ቀርቧል።
ስዕል 4.17.3 የክትትል ኖዱ ድግግሞሽ እና የመፈናቀል አምፕሊቱድ ግንኙነት
የትንተና ውጤት ሎግ 0.log (የድግግሞሽ ምላሽ ትንተና)¶
fstr_setup: OK
Rayleigh alpha: 0.0000000000000000
Rayleigh beta: 7.1999999999999999E-007
read from=eigen_0.log
start mode= 1
end mode= 5
start frequency: 14000.000000000000
end frequency: 16000.000000000000
number of the sampling points 20
monitor nodeid= 1
14100.000000000000 [Hz] : 8.3935554529723885E-002
14100.000000000000 [Hz] : 1 .res
14200.000000000000 [Hz] : 9.1211083509607632E-002
14200.000000000000 [Hz] : 2 .res
14300.000000000000 [Hz] : 9.9579777896922961E-002
14300.000000000000 [Hz] : 3 .res
14400.000000000000 [Hz] : 0.10914967594967491
14400.000000000000 [Hz] : 4 .res
14500.000000000000 [Hz] : 0.11992223203326918
14500.000000000000 [Hz] : 5 .res
14600.000000000000 [Hz] : 0.13164981801806747
14600.000000000000 [Hz] : 6 .res
14700.000000000000 [Hz] : 0.14360931008440975
14700.000000000000 [Hz] : 7 .res
14800.000000000000 [Hz] : 0.15436500205940235
14800.000000000000 [Hz] : 8 .res
14900.000000000000 [Hz] : 0.16180768408076251
14900.000000000000 [Hz] : 9 .res
15000.000000000000 [Hz] : 0.16388019610373711
15000.000000000000 [Hz] : 10 .res
15100.000000000000 [Hz] : 0.15982110598747551
15100.000000000000 [Hz] : 11 .res
15200.000000000000 [Hz] : 0.15074650286398145
15200.000000000000 [Hz] : 12 .res
15300.000000000000 [Hz] : 0.13885370598993371
15300.000000000000 [Hz] : 13 .res
15400.000000000000 [Hz] : 0.12618976409021948
15400.000000000000 [Hz] : 14 .res
15500.000000000000 [Hz] : 0.11405716994112736
15500.000000000000 [Hz] : 15 .res
15600.000000000000 [Hz] : 0.10306231010139058
15600.000000000000 [Hz] : 16 .res
15700.000000000000 [Hz] : 9.3374567545990342E-002
15700.000000000000 [Hz] : 17 .res
15800.000000000000 [Hz] : 8.4945897112663621E-002
15800.000000000000 [Hz] : 18 .res
15900.000000000000 [Hz] : 7.7641947016103510E-002
15900.000000000000 [Hz] : 19 .res
16000.000000000000 [Hz] : 7.1307642422355627E-002
16000.000000000000 [Hz] : 20 .res
start time: 0.0000000000000000
end time: 6.6000000000000005E-005
frequency: 15000.000000000000
node id: 1
num disp: 10
time= 0.0000000000000000 : 1 .res
time= 0.0000000000000000 : 1 .vis
time= 6.6000000000000003E-006 : 2 .res
time= 6.6000000000000003E-006 : 2 .vis
time= 1.3200000000000001E-005 : 3 .res
time= 1.3200000000000001E-005 : 3 .vis
time= 1.9800000000000000E-005 : 4 .res
time= 1.9800000000000000E-005 : 4 .vis
time= 2.6400000000000001E-005 : 5 .res
time= 2.6400000000000001E-005 : 5 .vis
time= 3.3000000000000003E-005 : 6 .res
time= 3.3000000000000003E-005 : 6 .vis
time= 3.9600000000000000E-005 : 7 .res
time= 3.9600000000000000E-005 : 7 .vis
time= 4.6200000000000005E-005 : 8 .res
time= 4.6200000000000005E-005 : 8 .vis
time= 5.2800000000000003E-005 : 9 .res
time= 5.2800000000000003E-005 : 9 .vis
time= 5.9400000000000000E-005 : 10 .res
time= 5.9400000000000000E-005 : 10 .vis