SimScale CAE Forum

CAD Import Error

Hello,

I’m an electronics engineer and new to any kind of thermal simulation tool. But i want to learn it very much.

I have created a CAD file (STEP file) for a PCB with an electronic component mounted on it, i want to check the effect of power dissipation on that component.

When I try to import that file it is giving me a warning like below. Please let me know what is the problem and how to correct the same.

Project link
https://www.simscale.com/workbench/?pid=4465769119778683524&mi=spec%3A83b66c94-0b76-4215-ab08-7fb6641a47b0%2Cservice%3ASIMULATION%2Cstrategy%3A2

Error Note:

No contacts detected for “Conjugate heat transfer”

No contacts exist as part of the simulation setup. Please check your CAD model or reach out to support.

1 Like

Hi @themaccabee,
After checking your model i found that there was problem in your cad model which was restricting from creating contacts b/w components.
Kindly correctly constrain the electronics components with the plate and then upload the step file to workbench.
I have done slightly modification in your cad model, lets see if it helps you.

https://www.simscale.com/projects/HamzaBaig/thermal_simulation/

Regards,
Hamza Baig

2 Likes

Hi @HamzaBaig

I just ran into the same problem, thing is im not sure of what i should contrain on my CAD drawing. Please kindly advise if you have the time.
Project link: https://www.simscale.com/workbench/?pid=7732852954791480941&mi=spec%3A531ed494-6f4f-49e2-8581-906d5216d41d%2Cservice%3ASIMULATION%2Cstrategy%3A5

Regards
Enzo

Answered here @yhleta: CAD Import error

Best,

Jousef

Hi @HamzaBaig,
I have the same problem could you help me. I used CATIA V5R19 for the CAO and I don’t understand why contacts are not on Simscale.
Here is the link of the project : https://www.simscale.com/projects/AlexandrerREY66/pb-fs_1/

Regards
REY Alexandre