XANSYS Message: 4173 [Go back to message list]
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Subject: Re: transient loading
Author: Ghasemi, Amir AGhasemi@
Date: 1999-08-24 23:29:00

Hi Ansys users,

Has anybody created any macro to write the results of different time
step (like stress)
into a file. I am just interested to know how to get the stress let's
say in x direction
with *GET command in different time step.

Thanks
Amir Ghasemi

-----Original Message-----
Sent: Monday, August 09, 1999 8:41 AM
To: xansys@o...

Huseyin,

Try this MACRO for your problem:

!===================================================
! --- APPLY THE LOADS AND SOLVE ----
!===================================================
/SOLU
ANTYP,TRANS
! APPLY THE LOAD ON THE NODE
F,Node,FY,0
TIME,0.0
LSWRITE,1

F,Node,FY,1000
TIME,0.25
LSWRITE,2

F,Node,FY,2000
TIME,0.5
LSWRITE,3

F,Node,FY,1000
TIME,0.75
LSWRITE,4

F,Node,FY,0
TIME,1.0
LSWRITE,5

LSSOLVE,1,5

After finishing the MACRO, review the results by POST26 (not POST1) to
get
time history graph.

Good Luck,

Carl Sun, P.Eng, Ph.D

Weatherford Technology Center
Bay 7, 3401 19th Street N.E.
Calgary, Alberta T2E 6S8
Canada
Phone: 403-219-4714
Fax: 403-252-2117
Email: carl.sun@w...

-----Original Message-----
Sent: Saturday, August 07, 1999 5:27 AM
To: xansys@o...



Dear Carl Sun
Do you know how to do this using GUI?
For example, i have load data at a node like this
Time Fy
0 0
0.25 1000
0.50 2000
0.75 1000
1.00 0

After modeling the system I set the analysis type to transient and set
these
values:
time at the end of load step:1
step size :0.25
substep size :0.05

When I was to apply the load at the node, I selected not constant value
but
TABLE
(In fact I could not understand the table very well.) I input 5
rows.(There
is a
single cell at the right top, is it the value of the load at time equals
to
zero?)
Then I solved the problem and saw the results. But it seems that what I
have
done is not a transient analysis. Because when I want to graph the time
history
of the stress at a node, or list the input load at a node, it gives
only
one
value which is the value at the end of the load step, and graphs
nothing.
Can you help me, or guide me on where I can find an example which shows
the
application of a time-dependent force at a node and also time history of
the
results.

Thank you
Huseyin Basbilen

carl.sun@w... wrote:

> From: carl.sun@w...

> Try this MACRO:

> !===================================================
> ! --- APPLY THE LOADS AND SOLVE ----
> !===================================================
> /SOLU
> ANTYP,TRANS
> KMAX=? ! Max load steps
> *DO,K,1,KMAX
> ! APPLY THE LOAD ON THE NODE
> F,......
> TIME,......
> LSWRITE,K
> *ENDDO
> LSSOLVE,1,KMAX

> Good Luck,

> Carl Sun, P.Eng, Ph.D

> Weatherford Technology Center
> Bay 7, 3401 19th Street N.E.
> Calgary, Alberta T2E 6S8
> Canada
> Phone: 403-219-4714
> Fax: 403-252-2117
> Email: carl.sun@w...

> -----Original Message-----
> From: Hüseyin Basbilen [mailto:basbilen@m...]
> Sent: Wednesday, August 04, 1999 8:16 AM
> To: ANSYS Community
> Subject: [xansys] transient loading

> From: =?iso-8859-9?Q?H=FCseyin=20Ba=FEbilen?=


> Dear ANSYS users,
> I want to apply transient loading (transient linear acceleration at a
> node, in fact) to my system. I have time values and corresponding
> acceleration values. How can I apply these to the system?
> If it is not possible to apply acceleration, how can i apply transient
> force loading to the system?

> Thank you all.

> Huseyin Basbilen
> basbilen@m...
> P.O.Box 30, Etlik
> Ankara, TR-06011
> TURKEY
> Tel : +90-312-847-5300 Ext:4563
> Fax : +90-312-847-5320

Huseyin Basbilen
basbilen@m...
P.O.Box 30, Etlik
Ankara, TR-06011
TURKEY
Tel : +90-312-847-5300 Ext:4563
Fax : +90-312-847-5320

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