×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Contact US

*
*
*
*

Thanks. We have received your request and will respond promptly.

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

PARAM, INREL, -2 with RIGID=LAGRAN problem ?

thread825-450118

PARAM, INREL, -2 with RIGID=LAGRAN problem ?

PARAM, INREL, -2 with RIGID=LAGRAN problem ?

(OP)
Hi all,

I am trying to run an analysis of a satellite which involves a thermal load (temp on each node). The model contains multiple RBE2 and CONM2 to simulate the connection of equipment mass to the structure. I am using a CTE for each RBE2 and also RIGID=LAGRAN, as stated in the nastran docs. The problem is that I get this strange behavior of some RBE2 elements, they deform a lot. The strange part is that some of them don't deform at all. I think the issue might be with me using automatic inertia relief.

My question would be; is it possible to run RIGID=LAGRAN with PARAM, INREL, -2? Has anyone run such a case ? maybe I am missing something and need to add something else.

Thanks!

RE: PARAM, INREL, -2 with RIGID=LAGRAN problem ?

The parameters "RIGID=LAGRAN" and "PARAM, INREL, -2" can be used together without issues.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login

Resources

Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close