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tongue's modelling

Altair Forum User

Hi everibody!

I'm doing a project for university. I'm trying to analyze a wheels set connected by a tongue but i'm struggling a lot with the facial contact between shaft and tongue and and also tongue and wheel. For first i tried applying 'freeze' on every face but it doesn't gives good results so i tried with another configuration but i have convergence's problems. What can i do?

I can share the file for more information.

Thanks to all!!!!

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Altair Forum User

Hi Lorenzo Loscalzo,

For first i tried applying 'freeze' on every face but it doesn't gives good results

Can you explain little more with some snapshots.

Also, please share your file.

use below FT link to share your file.

https://ftin.india.altair.com:8443/filedrop/~osKE8Q

Thank you

Altair Forum User

Hi @Lorenzo Loscalzo

Which solver are you working with?

For first i tried applying 'freeze' on every face but it doesn't gives good results

Can you please explain?

yes, please share the model files and also results from Freeze contact.

Altair Forum User

546274887_catturaperprakash.PNG.de9fdf06cb2012dfc132826e0654b027.PNG

In this pic ishared an example extracted by my model, here you can see where i freeze the surface between shaft and tongue (B) and also where i do the same thing for tongue and wheel (A). The simulation with this configuration converged and i obtain results.

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

howevere preview model gives these results, but in my opinion they are wrong cause they are symmetrical.

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

What i want to obtain is something like this, with asymmetrical stresses congruent with the rotation

About the simulation that doesn't converge i tried freezing only few side of the tongue like in the pic that follows

767495935_catturaperprakash2.PNG.b729351380a18f1f33f43e3a27765834.PNG

Unfortunately the model doesn't converge and i don't know how to fix it

I'm going to sent you the model.

I state that i have to do a static analysis of the gearbox.