Harmonic Analysis (TRI File)

[harid]

Hello ,

How can we avoid .tri file in harmonic analysis, my model is big that .tri file is using like more than 2,000,000kb memory. Please advise me.

Thank you.
Harid

 

[elogesh]

Hai,

Can we have the reason behind reading the triangularized matrix file?


Logesh.E

 

[harid]

Hello,

I do not want to read the .tri file, if i run harmonic analysis ,its getting created during the run... and using so much memory that system is not responding after certain time. Is there a way that it doesnt create .tri file at all. appreciate your help.

Thank you
harid

 

[Drej]

See the following on the /fdele command:

http://www1.ansys.com/customer/content/documentation/60/Hlp_C_FDELE_sl.html

I believe you require:

fini
/fdele,tri,dele


Hope this helps,
-- drej --

 

[harid]

Thank you Drej. that was of great help

cheers
harid

 

[harid]

Hello Drej,

I thought that will work if I goto Ansys file options and in FDELETE, i have selected .tri file and delete during solution, but i still see .tri file being created and its eating my memory off. please help me out.

Thank you.

cheers
harid

 

[Drej]

Harid,

The .tri file can be deleted using the /fdele command if it is not required in solution (as long as this command is submitted at the "begin" level early on). Also, if it is required in solution, it will only delete this file AFTER the solution has finished. There is a /delete option, which will delete the file regardless (dangerous), but you have to ask yourself WHY the file is not being deleted in the first place - most probably because it is required during solution! If you are constrained by your PC capability, the only thing you can do is reduce your model size unfortunately.

Best of luck!
-- drej --

 

[ifegermany]

docu says
you will have to issue a /CONFIG,LOCFL,1
besides the /fdele,tri,dele
mentioned by drej

both on begin level
as to delete the tri file as soon as it isn't needed anymore by solve. If you have a multiple substep solve, several sequential loadsteps to solve or subsequent analysis based on the current one which needs the tri file do not use this option, as the solution can not proceed without the tri

Frank

 

[harid]

Could u guys tell me wat do u mean by begin level exactly, If i have a meshed model in file.db and i resume database, then i give /fdele,tri,dele then delete doesnt work...? is it like before i resume database i have to give /fdele please explain me.

Thank you.

Harid

 

[ifegermany]

begin level is the startup level in ANSYS

if you are within /PREP /SOLU /POST or
some other module you got to issue FINISH
to go 'up' to the begin level

if you RESUME file.db from within one of
the modules mentioned above you'll need
to issue a FINISH before
/CONFIG,LOCFL,1
/fdele,tri,dele

Frank