export the deform shape (surface or solid)?

[gmtl]

Hi,

Is it possible to export the deform shape (surface or solid) of the model resulting from a static analysis?
I know that I can retrieve the coordinates of the displaced nodes.

Thanks

 

[SKJoe]

Hi,

You can use the commands listed below. Just save them to txt file and read in ansys. these commands create a txt file named DEFORM.TXT with deformation of all nodes of your model. You can scale up or down this deformation directly by parameter _S (I set default value to 1). I hope it will be usefull...


*GET,_A,NODE,,COUNT
*GET,_B,NODE,,NUM,MAX

*DIM,DEFORM,,_A,3

FINISH
/POST1

_S = 1

_D = 0
*DO,_C,1,_B
*IF,NSEL(_C),EQ,1,THEN

_D = _D+1

*GET,_UX,NODE,_C,U,X
*GET,_UY,NODE,_C,U,Y
*GET,_UZ,NODE,_C,U,Z

DEFORM(_D,1) = _UX
DEFORM(_D,2) = _UY
DEFORM(_D,3) = _UZ

*ENDIF
*ENDDO

*MWRITE,DEFORM,DEFORM,TXT
(3F25.10)

 

[SKJoe]

...I made a little mistake with scaling parameter _S. So if you would like scale your deformation, correct is :

DEFORM(_D,1) = _UX*_S
DEFORM(_D,2) = _UY*_S
DEFORM(_D,3) = _UZ*_S

 

[meshparts]

Hello!

To SKJoe: I apologize, but I saw your code and I found, that the *if sentence is not necessary.
Please don't be mad at me, but I'm such a programming freak and I'm always trying to write the
smallest codes. So I couldn't' resist to optimize your code too...

*GET,ncount,NODE,,COUNT

*DIM,DEFORM,,ncount,3

/POST1

nd=ndnext(0)
*DO,i,1,ncount   
	DEFORM(i,1)=ux(nd)
	DEFORM(i,2)=uy(nd)
	DEFORM(i,3)=uz(nd)
	nd=ndnext(nd)
*ENDDO

*MWRITE,DEFORM,DEFORM,TXT
(3F25.10)

To Gmtl: You forgot to specify to what to export. What format? Do you know the command UPGEOM?

Regards,
Alex

 

[SKJoe]

Hi,

To mihaiupb: ...everything what I know about ansys is from manual of ansys. No special course I have taken. Of course I know "get functions", but this time I simply used my old own log. Your code is "simplicity itself". I like that ! Thanx for recalling me these "get functions".

Regards,
Lubo

 

[gmtl]

Hi ,

I wanted to know if it was possible to retrieve the deform shape (surface or solid) in a format like IGS or Step. (I don’t think it’s possible)

Thanks for your tips they’re useful.