Checking Initial Contact Conditions Prior to Solving - Lesson 3
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- Опубликовано: 15 июл 2024
- This video explores how to use the Contact Tool under the connections branch before solving to check initial contact conditions and avoid costly rework time fixing contact after a failed solve.
For complex models, involving many contact pairs, even if the contact pairs are all linear, a static solution still might fail if the initial contact conditions are not set up properly. Engineers need to be extra cautious when setting up the contacts between the parts, generating the desired mesh, setting up boundary conditions, applying loads, and finally solving it. And after solving such complex problems, what if it fails due to improper contact with bodies having rigid-body motion? Could that be avoided before investing computational time? Is there a way to check how the contacts are defined before solving them?
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0:00 - Introduction
1:40 - Discussion on contact issues arising from geometry
2:41 - Discussion on contact issues arising from rigid-body motion
3:42 - Discussion on using Contact Tool under the connections branch
7:47 - Demonstration of checking initial contact status in Mechanical
13:05 - Discussion on resolving geometric gaps in assemblies
13:39 - Demonstration of using frictional contact Interference Treatment in Mechanical
13:55 - Demonstration of increasing bonded contact Pinball Radius in Mechanical 
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This video is part of the free Ansys Innovation Course, "Connecting Parts Together Using Ansys Mechanical". Access all the course contents, including additional lessons, handouts, simulation examples with starting files, homework problems, and quizzes here: courses.ansys.com/index.php/courses/connecting-parts-together/.
this video very helpful to undestanding the initial contact
I was struggling with convergence for days. This 16-minute video was all I needed.
It goes without saying “CHECK YOUR CONTACTS”
Don’t ever forget that.
Thank you for sharing.
Glad you liked it! Visit Ansys Innovation Courses for free courses, including videos, handouts, simulation examples with starting files, homework problems, and quizzes here: ansys.com/courses.
This is an extremely thorough review of this tool. I resolved all of my issues thanks to your in-depth instructions. Never stop teaching!
Glad you think so! Visit Ansys Innovation Courses for free courses that include videos, handouts, simulation examples with starting files, homework problems, and quizzes here: ansys.com/courses.
Thanks to all Ansys How-to videos, Every time it is informative.
You're welcome! Visit Ansys Innovation Courses for free courses that include videos, handouts, simulation examples with starting files, homework problems, and quizzes here: ansys.com/courses.
Really a good and thorough explanation of the Contact tool! I have really had a hard time trying to find someone who explains how it is supposed to be applied in detail! Thanks!
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very very helpful video
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Loved it!! Thank you for bringing up this video.
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Excellent info. Watching this video should be compulsory before simulating any assembly. Thank you!
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I learned a lot in just 16 minutes. Thanks for this thorough but nicely summarized tutorial
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Excellent explanation, very grateful. 😉
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Excellent video thank you. I recently delivered training to our analysts on contact and I always tell them to use the initial contact tools, can’t stress that enough. That said, I still learnt a couple of little tips from your video.
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Very concise useful tutorial
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Thank's, it's a very completed video.
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Thank you sir. Much appreciated. Kindly create if possible a video related to the normal stiffness value, MPC, Augmented Lagrange technique, etc.
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informative vedio sir
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Great video, however, I notice one discrepancy: at 9'18'' the initial information shows the two bonded contact are far open but Without gap and penetration, then at 13'19'', the section view shows the two bolt shanks actually have gaps with bolt holes. Why?
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Why your ANSYS generate the initial information. but mine dose not? I'm using your model. I tried to remove the contact tool and add it back, still not working.
when I insert "contact tool" it shows up w/ ? and no contacts listed
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There is no gap and yet it's in red colour ....
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