Лекции По ls-dyna Часть 3

. . , . C. , . .

. ANSYS/LS-DYNA LS-PREPOST

3.

LS-PREPOST. LS-DYNA Solver

2013

2

531/534:004.4(075.8)(076.1) + 539.3:004.4(075.8)(076.1)

- ( 7 18.06.2013 .)

: .. , .C. , ..

: . ., . .-. , ,

. ., . . , .

. ANSYS/LS-DYNA LS-PREPOST [ ] : . .-. . 1-31 03 02 ( ). 3 . . 3. LS-PREPOST/ . . , . C. , . . . . . : , 2013. 74 . : . .: . 7172. . . . 002118062013. . 18.06.2013 .

LS-PREPOST, , LS-DYNA Solver, LS-PREPOST.

CAD-FEM GmbH ANSYS 10 ED .

3

LS-PREPOST

LS-PREPOST ( 1). LS-PREPOST :

LS-PREPOST , , .

, .

. , .

, , .. .

, . .

! LS-PREPOST , .

, .

. LS-PREPOST.

. .

, ( ) ( 2).

4

1. LS-PREPOST

2.

LS-PREPOST

, , ( 3). :

File , , , .

5

Misc. , , , .

Toggle , .

Background .

Applications , . , , , .

Target .

Help .

3. LS-PREPOST

, .

File

:

New ;

Open .

Update d3plot .

Save Keyword k- (*.k).

Save Config (*.lspostrc).

Print .

Movie .

Exit LS-PREPOST.

Save_Exit LS-PREPOST.

Misc.

:

6

Reflect .

Model Info .

Swap byte on Title

Mesh line width 2-D .

Edge line width 3-D .

Feature angle .

Start record .

Stop record .

Playback .

Ruler .

Command File .

Title

Assign Menu Button

View Message Dialog

Toggle

:

Local axes On .

Texture On .

Onesided Lighting - .

FringeLight .

Outlining edge .

PlotUnode on , .

Highlight off / .

Smooth Shade .

Outline white .

Deleted Nodes on .

7

Record Message on , , .

Beam Style Prism , .

Animate mode once .

Deleted Elements on - .

Background

:

Full(ESC to return)

Plain ( ).

Fade, DiaFade, TriFade , ( ).

Picture jpeg- .

( 4):

Title - , .

Legd - , .

Tims - , .

Triad - , .

Bcolr - , .

Mcolr - , .

Frin - ().

Isos - - ().

Lcon - .

Hide - .

Shad - ().

View - ()

Wire - .

Feat - ( 30 ).

8

Edge - .

Grid - .

Mesh - .

Shrn - ( 0.85).

Acen - .

Pcen - .

Zin - ( ).

Zout - .

+/- 10 - 10 , , Z, .

Rx, Ry, Rz - RX, RY, RZ .

// - , 3-D .

Pers 3-D .

DeOff - .

DeOn - .

Clp - .

All - .

Rpat - .

Top, Front, Right, Bottm, Back, Left - (, , , , ).

Redw - .

Home - .

Anim - .

Rset - .

4.

9

,

! ( , ) Main Menu. .

. (.. ), ( 5).

, :

. , , ( ANSYS/LS-DYNA Post processing).

. , , ( , .), .. Pre processing, , Post processing.

k-.

, , .. Pre processing.

, k- ( ).

10

5. , ,

( 6):

First .

Last .

Inc .

Time .

State# .

SF .

No.of Div .

( 6):

.

11

.

(), .

.

,

.

Inc.

- .

6.

LS-PREPOST ( 7) ( 8). Enter .

7.

8.

12

1

, .

Fcomp

Main Menu> 1> Fcomp

Fringe Compotent ( 9), :

Stress .

Ndv - / .

Result - .

Strain - ln .

Misc - , , ..

Infin - .

Green - Green-St.Venant G .

Almans - Almansi Al .

S.Rate - .

Residue - .

FLD - FLD .

Beam t s , , / .

CFD - Navier-Stokes.

D3Mean - Fringe Compotent.

User - Fringe Compotent .

Apply .

13

! L - , - . ln

LL 1lnln . Green-

St.Venant G Almansi Al 222

G L2L , 222

Al 2L .

9. Fringe Component

Main Menu> 1> Fcomp> Fringe Compotent> Ndv> x-displacement

Main Menu> 1> Fcomp> Fringe Compotent> Ndv> y-displacement

14

Main Menu> 1> Fcomp> Fringe Compotent> Ndv> z-displacement

Main Menu> 1> Fcomp> Fringe Compotent> Ndv> result displace

Main Menu> 1> Fcomp> Fringe Compotent> Stress> 1st-prin stress



Main Menu> 1> Fcomp> Fringe Compotent> Infin> 1st-prin. strain



Green-St.Venant

Main Menu> 1> Fcomp> Fringe Compotent> Green> 1st-prin. strain



Almansi

Main Menu> 1> Fcomp> Fringe Compotent> Almansi> 1st-prin. strain



Main Menu> 1> Fcomp> Fringe Compotent> Beam> axial forse resultant

Main Menu> 1> Fcomp> Fringe Compotent> Beam> t-forse resultant

15

Main Menu> 1> Fcomp> Fringe Compotent> Beam> s-moment resultant

Main Menu> 1> Fcomp> Fringe Compotent> Beam> torsional moment

Vector

Main Menu> 1> Vector

. , Vector Plot ( 10) :

X, Y, Z - , , Z .

Vector range - .

Dynamic - / .

Static - / .

User - / .

Show - , .

SF - .

Hidden line vector off - ( , , ).

Whole - () .

Part - .

Area - .

El/Node - . :

Apply - .

Clear - .

Done - .

16

10. Vector Plot

Main Menu> 1> Vector

:

( X, Y, Z).

(, Dynamic, Static).

( SF)

, . Apply.

History

Main Menu> 1> History

17

. , Time History Results ( 11), :

:

Global -

Nodal -

Element -

Int.pt. -

Material -

R-Nodal -

Scalar - fringed

Vol-fail -

Sum mats - .

, .

, :

Value - / :

1. Elm - (plot) 2. Max - (plot)

3. Min - (plot)

E-type - .

E-axes - .

Surface - .

18

11. Time History Results

:

Plot - XY-Plot .

New - XY-Plot .

Padd - XY-Plot .

Raise - XY-Plot .

Pop - XY-Plot .

Clear - .

Done - .

Main Menu> 1> History

19

:

.

Nodal R-Nodal/- Element and Int. Pt./, Materials/ fringe Scalar, Fcomp.

! , FComp, 1 prin stress Hystory , .

Plot New.

State

Main Menu> 1> State

. :

State Times ( 12):

Choose , ;

Delete ;

State Times ( 12):

Overlay State ;

Overlay Color ;

Overlay Type ;

Reset ;

Done .

20

12. State Times

Main Menu> 1> State

:

, .

c Overlay Color.

Overlay Type.

, State.

! Enter .

21

() Measur

Main Menu> 1> Measur

. Measure ( 13), , , History :

Item .

Cancel pick ().

History .

Active Element Only .

Plot PlotWindow.

New PlotWindow.

Padd () PlotWindow.

Clear .

Raise PlotWindow.

Pop PlotWindow.

Done Measure.

22

13. Measure

()


:

Reference Axes ( Global).

Item Coordinate.

- .

! .

(X-coordinate, Y-coordinate, Z-coordinate Magnitude) Hystory.

Plot (New PAdd) .

23


:

Reference Axes ( Global).

Item Distance ( Distance N2S).

( ) - .

.

Hystory.

Plot (New PAdd) .

SelPar

Main Menu> 1> SelPar

. Part Selection ( 14), :

:

.

Beam .

Shell .

Solid .

Tshell T- .

Mass .

Discrete .

Seatbelt Seatbelt ( ).

Inertia - .

Rsurf - .

SPHnd SPH-.

24

Fluid . :

Single .

Area , , .

Polygon , , .

Part Selection :

Save .

Load .

Buff(n) .

Rm , .

Kp , /.

Info .

All .

None .

Rev .

Auto .

Apply .

Done Part Selection.

25

14. Part Selection

Main Menu> 1> SelPar

:

Rm (Remove) Kp (Keep) , Part .

(Single, Area, Poly).

Part ID.

Apply.

3

3 k-.

*Boundry

Main Menu> 3> *Boundry

.

26

*Constrnd

Main Menu> 3> *Constrnd

.

*Contact

Main Menu> 3> *Contact

.

*Control

Main Menu> 3> *Control

, , .

*Dbase

Main Menu> 3> *Dbase

.

*Define

Main Menu> 3> *Define

, , ..

*Element

Main Menu> 3> *Element

, , , , , .

27

*Eos

Main Menu> 3> *Eos

.

*Initial

Main Menu> 3> *Initial

.

*Load

Main Menu> 3> *Load

, , .

*Mat

Main Menu> 3> *Mat

.

*Node

Main Menu> 3> *Node

.

*Part

Main Menu> 3> *Part

*SECTION, *MATERIAL, *EOS ..

28

*Set

Main Menu> 3> *Set

, , .. .

k- LS-PREPOST

1. k- LS-PREPOST

1. k- LS-PREPOST

ANSYS k- File> Import> LS-DYNA Keyword. Input File ( 15).

15. Input File

:

k- (C:\example1\).

k- (example1.k).

Open. ( 16).

29

16. .

2. k- LS-PREPOST

k- ANSYS ANSYS. , , LS-PREPOST LS-DYNA. 3 ( 17).

17. 3

:

*Dbase ( 18).

Keyword *DATABASE ( 19) *FORMAT.

Keyword *DATABASE Edit ( 19).

30

18. 3 *Dbase

19. Keyword *DATABASE *Dbase

*DATABASE_FORMAT ( 20).

IFORM . 0, LS-DYNA ( 20).

Accept Done *DATABASE_FORMAT ( 20).

20. IFORM *DATABASE_FORMAT

31

3.

LS-DYNA . , . ( 17):

, 3, *Control ( 21).

*TIMESTEP ( 22).

Cre/Edt ( 22).

CONTROL_TIMESTEP ( 23) DT2MS . 0.00001.

Accept Done CONTROL_TIMESTEP ( 23).

21. *Control

22. Keyword *DATABASE

*Control

32

23. DT2MS *CONTROL_TIMESTEP

4. .

k- File> Save Keyword. Save Keyword ( 24).

:

Browse Save Keyword File k- (, C:\example1\).

k- (, example1.k).

Open Save Keyword File.

Save Save Keyword.

! LSPP Question Yes. LSPP Question ( LS-PREPOST). ANSYS- k-, k-.

LS-PREPOST.

24. Save Keyword

33

2.

1. k- LS-PREPOST

ANSYS k- File> Import> LS-DYNA Keyword. Input File. :

k- (, C:\example2\).

k- (example2.k).

Open. ( 25).

25.

2. k- LS-PREPOST

, , LS-PREPOST LS-DYNA. 3 ( 17). :

*Dbase ( 18).


34



IFORM . 0, LS-DYNA ( 20).

Accept Done *DATABASE_FORMAT ( 20).

3.

LS-DYNA . , . 3:

, , *Control ( 26).

*TIMESTEP ( 27).

Cre/Edt ( 27).

CONTROL_TIMESTEP DT2MS . 0.00005.

Accept Done CONTROL_TIMESTEP.

26.

*Control

35

27. Keyword *CONTROL *Control

4. .

*MAT_ADD_EROSION (second part) ( 28).

28.

*MAT_ELASTIC, *MAT_ADD_EROSION . :

, 3, *MAT ( 29). 001-ELASTIC Edit.

MAT_ELASTIC ( 30) NewID, Accept. .

Done.

36

GroupBy Keyword *MAT All ( 31).

*000-ADD_EROSION ( 32).

Edit ( 32).

MAT_ADD_EROSION NewID MID 2, EPSP1 0.00065 ( 33).

Accept Done MAT_ADD_EROSION ( 33).

! MID 2, .. , , , .

29. *Mat

30. *MAT_ELASTIC

37

31. LS-DYNA.

32. Keyword *MAT *Mat

:

, 3, *Part, (*)PART (2) Edit. *PART_(TITLE) ( 34).

2 Part MID 2 ( 34).

Accept Done.

33. *MAT_ELASTIC

38

34. *PART 2 Part

5. .

k- File> Save Keyword. Save Keyword.

:


k- (, example2.k).


Save Save Keyword.

! LSPP Question Yes. LSPP Question ( LS-PREPOST). ANSYS- k-, k-.

LS-PREPOST.

3. - LS-PREPOST

1. k- LS-PREPOST

k-, ANSYS, LS-PREPOST File> Import> LS-DYNA Keyword. Input File. :

39

k- (, C:\example3\).

k- (example3.k).

Open. ( 35).

35. LS-PREPOST

2. k- LS-PREPOST

, , LS-PREPOST 3 ( 17). :

*Dbase ( 18).




IFORM . 0 ( 20).

*DATABASE_FORMAT Accept Done ( 20).

40

3. .

k- File> Save Keyword. Save Keyword.

:


k- (, example3.k).


Save Save Keyword.

! LS-PREPOST Yes LSPP Question.

LS-PREPOST.

4 5. k-

! k- 4 5 ANSYS and LS-DYNA, .

41

LS-DYNA SOLVER LS-PREPOST

ANSYS Product Launcher

- Ansys Product Launcher ( 36):

start> Programs> Ansys ED 10.0> ANSYS Product Launcher

36. 10.0: ANSYS ED Product Launcher

:

Simulation Environment LS-DYNA ED Solver ( 37).

Analysis Type Typical LS-DYNA Analysis ( 37).

42

37. LS-DYNA ED Solver

File Management. Working Directory , k-. Browse Browse for Folder ( 38) . OK.

k- Keyword Input File. Browse Select Keyword Input File ( 39) . Open ( 40).

Run Launch ANSYS Product Launcher ( 36).

ANSYS Product Launcher, ( 41). , ( ). d3plot , Working Directory.

ANSYS Product Launcher ( 36) File> Exit,

.

! , d3plot .

43

38. Browse for Folder

39. Select Keyword Input File

40. Working Directory Keyword Input File

44

41. ANSYS Product Launcher

LS-PREPOST

File> Open> Binary Plot. Input File ( 42).

42. Input File

:

(, :\example1\), .

d3plot.

Open.

45

1. LS-PREPOST

1. Ansys Product Launcher

Ansys Product Launcher:


:

Simulation Environment LS-DYNA ED Solver.

Analysis Type Typical LS-DYNA Analysis.

Working Directory Browse Browse for Folder (, C:\example1\), . OK.

k- Keyword Input File Browse Select Keyword Input File example1.k. Open.

Run Launch ANSYS Product

Launcher.

Launch ANSYS Product Launcher.

d3plot , , .

2. LS-PREPOST

LS-PREPOST> File> Open> Binary Plot. Input File.

46

:

(C:\example1), .

d3plot.

Open. ( 43).

43.

3.

:

LS-PREPOST> Misc.> Reflect> Reflect about YZ Plane

:

, 1 ( 44).

Fcomp ( 44).

Fringe Component Stress 1st-prinsipal stress ( 45).

47

Apply.

( 0 1 .) ( 46).

! , 0.92 ( 46).

44. , 1

45. Fringe Component

(1st-prinsipal stress)

48

46.

4.

0.

. :

Fcomp.


History ( 47).

Scalar Maximum Prinsipal Stress ( 47).

, ( 48).

Plot ( 47, 49).

49

47.

50

48.

49.

51

5.

1000 60 3.25 . AMD Athlon 64 Processor 3500+. 0,93 0,92 . .

, , , , .

2.


, k-, Ansys Product Launcher:


:



File Management. Working Directory , k-. Browse Browse for Folder (, C:\example2\). OK.

k- Keyword Input File. Browse Select Keyword Input File (, example2.k). Open.

Run Launch ANSYS Product Launcher.

52

ANSYS Product Launcher, . , d3plot () Working Directory.

ANSYS Product Launcher

File> Exit, .

2. LS-PREPOST

File> Open> Binary Plot. Input File. :

(, C:\example2\), .

d3plot.

Open. ( 50).

50.

53

3.

:

, 1 ( 51).

Fcomp ( 51).


Apply.

( 0 1 .) ( 53).

! , 0.04 ( 53).

51. 1

Fcomp


(1st-prinsipal stress)

54

53.

4.

. :

Fcomp.


History ( 54).

Time History Results Scalar ( 54).

Scalar Maximum Prinsipal Stress ( 54).

( 55), .

Plot ( 56).

55

54.

56

55.

56.

57


1.



:



Working Directory Browse Browse for Folder (C:\example3\). OK.


Run Launch ANSYS Product

Launcher.


d3plot , , .

2. LS-PREPOST

File> Open> Binary Plot. Input File.

:

(), (, C:\example3\).

58

d3plot.

Open. ( 57).

57.

3.

:

, 1 ( 58).

Fcomp ( 58).

Fringe Component Stress von mises stress ( 59).

Apply.

( 60).

! , 0.000012.

59

58. , 1


von mises stress

60

60.

4. , ANSYS/LS-DYNA LS-PREPOST

, LS-PREPOST , , .

5. avi- .

. File> Movie . Movie Dialog ( 61).

Pathname File Name Start ( 61). avi-, ( 62).

61

61. Movie Dialog

62. bullet.avi

62

4. LS-PREPOST

1.



:



Working Directory Browse Browse for Folder , (C:\example4\). OK.




2. LS-PREPOST

File> Open> Binary Plot. Input File. :

(), (, C:\example4\).

d3plot.

Open. .

3.

:

63

, 1.

Fcomp.

Fringe Component Ndv result displacement ( 63).

Apply.

( 64).

! Shift + , / Shift + (Scroll).


(result displace)

64

64.

4. .

:

, 1.

Measure .

Item Distance ( 65).

History length ( 65)

, ( 66).

Plot ( 67).

65

65. Measure

66. 22 42

66

67.

5. LS-PREPOST

1.



:



Working Directory Browse Browse for Folder , (, c: \example5\). OK.



67


d3plot , , .

2. LS-PREPOST

File> Open> Binary Plot. Input File.

:

(), (, C: \example3\).

d3plot.

Open. ( 68).

68.

68

3. s-

:

1.

Fcomp.

Fringe Component Beam s-moment resultant ( 69).

Apply.

( 70).


(s-moment resultant)

69

70.

4.

:

1.

State.

State Times 1, ( Overlay ), Overlay Color Black Overlay Type Mesh ( 71).

Overlay State 14. 0 1.3 ( 72).

! Overlay State Enter. LS-PREPOST .

70

71. State Times

72. 0 (.) 1.3 (.)

71

1. . . / . . , . . , . . // : . . . . , 3-7 2008 . 2. : , 2008. . 115.

2. . . / . . , .. , . . , . . // : . . . 14-19 . 2009 . , : , 2009. . 65.

3. . ANSYS [ ] : . .-. . 1-31 03 02 ( ). 5 . . 1. . / . . , . . , . . . . . : , 2013. 130 .: . .: . 128 . . . . 001228052013. . 28.05.2013.

4. . ANSYS [ ] : . .-. . 1-31 03 02 ( ). 5 . . 2. . ANSYS / . . , . . , . . . . . : , 2013. 145 .: . .: . 143. . . . 001328052013. . 28.05.2013.

5. . ANSYS [ ] : . .-. . 1-31 03 02 ( ). 5 . .3. . / . . , . . , . . . .

72

. : , 2013. 193 .: . .: . 190. . . . 001428052013. . 28.05.2013.

6. . ANSYS [ ] : . .-. . 1-31 03 02 ( ). 5 . . 4. . Solution General Postproc . , / . . , . . , . . . . . : , 2013. 118 .: . .: . 116 . . . . 001528052013. . 28.05.2013.

73

LS-PREPOST ....................... 3 LS-PREPOST........................................................ 4 ........................................................................................ 7 , ....................................................................................... 9 ......................................................... 10 ............................................... 11 1 ............................................................................... 12

Fcomp .................. 12 Vector ............................................... 15 History ................................................................................................................. 16

State .................................................. 19 () Measur ................................................................................................................. 21

SelPar ............................................ 23 3 ............................................... 25 k- LS-PREPOST ............................. 28

1. k- LS-PREPOST...................................................... 28 2. ................................................................................................ 33 3. - LS-PREPOST ............... 38 4 5. k- ........................................ 40

LS-DYNA SOLVER LS-PREPOST ................................................................ 41

ANSYS Product Launcher ...................................................................................... 41

LS-PREPOST .................. 44 ............................................................................................................. 45

1. LS-PREPOST ............ 45 2. ................................................................................................ 51

74

3. Ansys Product Launcher ....................... 57 4. LS-PREPOST ........................................ 62 5. LS-PREPOST ..................................................................................... 66

................................................................................................................ 71

Лекции По ls-dyna Часть 3

Documents