Analisis sentuhan (Bahagian 1)¶
Analisis ini menggunakan data tutorial/09_contact_hertz.
Sasaran analisis¶
Analisis ini ialah masalah sentuhan Hertz; geometri yang dianalisis ditunjukkan dalam Rajah 4.9.1 dan data mesh ditunjukkan dalam Rajah 4.9.2.
| Item | Penerangan | Nota | Rujukan |
|---|---|---|---|
| Jenis analisis | Analisis statik tak linear (elastoplastik, sentuhan) | !SOLUTION,TYPE=NLSTATIC !CONTACT | |
| Bilangan nod | 408 | ||
| Bilangan elemen | 168 | ||
| Jenis elemen | Elemen heksahedron linear 8 nod | !ELEMENT,TYPE=361 | |
| Nama bahan | MAT1 | !MATERIAL,NAME=MAT1 | |
| Sifat bahan | ELASTIC | !ELASTIC | |
| Syarat sempadan | Kekangan, sesaran yang ditetapkan | ||
| Solver matriks | CG/SSOR | !SOLVER,METHOD=CG,PRECOND=1 |
Rajah 4.9.1: Bentuk sasaran analisis
Rajah 4.9.2: Data mesh sasaran analisis
Kandungan analisis¶
Kaedah pengganda Lagrange terlanjut digunakan untuk menjalankan analisis sentuhan dengan sesaran paksa dalam arah mampatan dikenakan pada permukaan atas model 1/4 cakera. Data kawalan analisis ditunjukkan di bawah.
Data kawalan analisis cgs3.cnt¶
# Fail Kawalan untuk FISTR
## Kawalan Analisis
!VERSION
3
!SOLUTION, TYPE=NLSTATIC
!WRITE,RESULT
!WRITE,VISUAL
## Kawalan Solver
### Syarat Sempadan
!BOUNDARY, GRPID=1
ALL, 3, 3, 0.0
BOTTOM, 2, 2, 0.0
CENTER, 1, 1, 0.0
UPPER, 2, 2, -0.306
!CONTACT_ALGO, TYPE=ALAGRANGE
!CONTACT, GRPID=1
CP1, 0.0
### STEP
!STEP, SUBSTEPS=5, CONVERG=1.0e-5
BOUNDARY, 1
CONTACT, 1
### Bahan
!MATERIAL, NAME=MAT1
!ELASTIC
1100.0, 0.0
### Tetapan Solver
!SOLVER,METHOD=CG,PRECOND=1,ITERLOG=YES,TIMELOG=YES
1000, 1
1.0e-10, 1.0, 0.0
## Kawalan Pasca
!VISUAL,method=PSR
!surface_num=1
!surface 1
!output_type=VTK
!END
Prosedur analisis¶
Jalankan arahan pelaksanaan FrontISTR fistr1.
(Berjalan dengan 4 thread.)
Hasil analisis¶
Hasil sublangkah ke-5 ditunjukkan dalam Rajah 4.9.3. Rajah ubah bentuk dengan kontur sesaran arah y dihasilkan oleh REVOCAP_PrePost. Sebahagian daripada fail log hasil analisis ditunjukkan di bawah sebagai data berangka bagi hasil analisis.
Rajah 4.9.3: Hasil analisis ubah bentuk dan sesaran arah y
Log hasil analisis 0.log¶
fstr_setup: OK
#### Result step= 0
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 0.0000E+00 1
//U2 0.0000E+00 1 0.0000E+00 1
//U3 0.0000E+00 1 0.0000E+00 1
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 0.0000E+00 1 0.0000E+00 1
//U2 0.0000E+00 1 0.0000E+00 1
//U3 0.0000E+00 1 0.0000E+00 1
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 0.0000E+00 1 0.0000E+00 1
//E22 0.0000E+00 1 0.0000E+00 1
//E33 0.0000E+00 1 0.0000E+00 1
//E12 0.0000E+00 1 0.0000E+00 1
//E23 0.0000E+00 1 0.0000E+00 1
//E31 0.0000E+00 1 0.0000E+00 1
//S11 0.0000E+00 1 0.0000E+00 1
//S22 0.0000E+00 1 0.0000E+00 1
//S33 0.0000E+00 1 0.0000E+00 1
//S12 0.0000E+00 1 0.0000E+00 1
//S23 0.0000E+00 1 0.0000E+00 1
//S31 0.0000E+00 1 0.0000E+00 1
//SMS 0.0000E+00 1 0.0000E+00 1
...
#### Result step= 5
##### Local Summary @Node :Max/IdMax/Min/IdMin####
//U1 1.3079E-02 31 -4.1442E-02 54
//U2 4.9597E-03 1008 -3.0604E-01 69
//U3 0.0000E+00 1 0.0000E+00 1
//E11 7.1171E-03 1049 -4.7627E-02 1
//E22 2.0644E-03 1012 -5.3428E-02 50
//E33 9.3301E-03 50 -4.0103E-03 54
//E12 4.3231E-02 1000 -2.7666E-02 54
//E23 1.3028E-12 1046 -1.2515E-12 2
//E31 3.5660E-13 48 -2.1028E-12 51
//S11 7.9455E+00 1049 -4.9987E+01 1
//S22 2.2819E+00 1012 -5.3282E+01 50
//S33 1.1359E+01 50 -4.4937E+00 54
//S12 2.0802E+01 1000 -1.4668E+01 54
//S23 6.7682E-10 1046 -6.3666E-10 2
//S31 2.0235E-10 48 -1.1497E-09 51
//SMS 6.0944E+01 1000 1.0198E-01 69
##### Local Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.6311E-03 1024 -3.5443E-02 8
//E22 1.7091E-03 1031 -5.4262E-02 8
//E33 1.5903E-04 7 -1.6631E-05 101
//E12 1.8590E-02 1009 -2.6073E-02 14
//E23 1.5204E-13 1000 -4.1521E-13 16
//E31 1.3902E-13 5 -8.2391E-13 7
//S11 5.2516E+00 1024 -3.8099E+01 8
//S22 1.8872E+00 1031 -5.5262E+01 8
//S33 2.2824E-01 7 -1.8263E-02 101
//S12 9.8516E+00 1009 -1.3352E+01 14
//S23 7.8767E-11 1000 -2.1075E-10 16
//S31 7.7553E-11 5 -4.4780E-10 7
//SMS 4.9470E+01 8 2.4786E-01 1007
##### Global Summary @Node :Max/IdMax/Min/IdMin####
//U1 1.3079E-02 31 -4.1442E-02 54
//U2 4.9597E-03 1008 -3.0604E-01 69
//U3 0.0000E+00 1 0.0000E+00 1
//E11 7.1171E-03 1049 -4.7627E-02 1
//E22 2.0644E-03 1012 -5.3428E-02 50
//E33 9.3301E-03 50 -4.0103E-03 54
//E12 4.3231E-02 1000 -2.7666E-02 54
//E23 1.3028E-12 1046 -1.2515E-12 2
//E31 3.5660E-13 48 -2.1028E-12 51
//S11 7.9455E+00 1049 -4.9987E+01 1
//S22 2.2819E+00 1012 -5.3282E+01 50
//S33 1.1359E+01 50 -4.4937E+00 54
//S12 2.0802E+01 1000 -1.4668E+01 54
//S23 6.7682E-10 1046 -6.3666E-10 2
//S31 2.0235E-10 48 -1.1497E-09 51
//SMS 6.0944E+01 1000 1.0198E-01 69
##### Global Summary @Element :Max/IdMax/Min/IdMin####
//E11 4.6311E-03 1024 -3.5443E-02 8
//E22 1.7091E-03 1031 -5.4262E-02 8
//E33 1.5903E-04 7 -1.6631E-05 101
//E12 1.8590E-02 1009 -2.6073E-02 14
//E23 1.5204E-13 1000 -4.1521E-13 16
//E31 1.3902E-13 5 -8.2391E-13 7
//S11 5.2516E+00 1024 -3.8099E+01 8
//S22 1.8872E+00 1031 -5.5262E+01 8
//S33 2.2824E-01 7 -1.8263E-02 101
//S12 9.8516E+00 1009 -1.3352E+01 14
//S23 7.8767E-11 1000 -2.1075E-10 16
//S31 7.7553E-11 5 -4.4780E-10 7
//SMS 4.9470E+01 8 2.4786E-01 1007