Contact US

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

Thermal analysis with multiple bodies

Thermal analysis with multiple bodies

Thermal analysis with multiple bodies

I am running Mechanica 2001 and importing Unigraphics models to perform thermal analyses (could be IGES also). How can I make 2 or more bodies of different materials contact each other and transfer heat between each other?  I know it can be done if Mechanica and ProE are linked, but I don't have that option.


RE: Thermal analysis with multiple bodies

If mechanica understands that the two bodies share a surface it will assume them to be perfectly thermally connected. There is no option in 2001 to put in an interface resistance .

Try the Autoassociate option under geometry in the edit menu. By changing the tolerance to which ProM associates, you can make the program assume that points that are close to eachother are one and the same point. This option is often automatically set to a value other than 0%, so it often causes problems with imported geometry without the user realising what's going on.

RE: Thermal analysis with multiple bodies

Thanks for the update.  I don't need to model the interface resistance, but I do need Mechanica to realize that there are two different bodies made of different materials. Will it assume that if they are in contact when imported?

RE: Thermal analysis with multiple bodies

It should make that assumption. All you need to do is select each volume and assign the materials you want to them.

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


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