Altair RISE

A program to recognize and reward our most engaged community members

Nominate Yourself Now!

Summation of vector field

Dear All,

Is it possible in OS to sum over a vector field in order to calculate the resultant?

Specifically I am interested in the resultant contact force during a Nonlinear Transient analysis.

If this can be done only via postprocessing can you please let me know where can I find information in the documentation and if it is possible to do that in Simlab or only in Hypermesh and HyperView?

Thank you

Find more posts tagged with

English

OptiStruct

Accepted answers

All comments

Adriano_Koga

If you request CONTF in OPTI format you will get a result like this attached file, with the summation of contact forces by contact group. Maybe it helps you.

If you need to breakdown your contacts by regioon, youl will need several contact groups.

<?xml version="1.0" encoding="UTF-8"?>

Unable to find an attachment - read this blog

AmirMar

Hi Adriano,

Thank you so much for the prompt reply.

In the documentations under Reference Guide->Output Data->Files Created by OptiStruct->.cntf file it is said:
'This file is created when the OPTI format is selected in the CONTF I/O Options Entry for Linear Static, Linear Inertia Relief, and Nonlinear Static Analysis (NLSTAT) runs.'

Earlier I asked about the availability of output CONTF and you answered that it is available for transient dynamic NL analysis.
As I understand from the documentations CONTF summation is unavailable for that type of analysis. Can you please confirm that?

Adriano_Koga

i've run a NL Transient model in OS2020 an I got the .cntf file as attached.

Maybe the documentation is not updated at this point.

Unable to find an attachment - read this blog

AmirMar

Hi,

Is there a way to request for both .cntf and h3d? I would like to have both the contact fields distributions and the total forces.