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April 6, 2018 at 9:42 pm
thabtisalma
SubscriberhiÂ
i have problem in the contactÂ
any help pleaseÂ
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April 6, 2018 at 10:41 pm
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April 6, 2018 at 10:46 pm
thabtisalma
Subscriberi want to simulate the assembly loadsÂ
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April 6, 2018 at 10:49 pm
thabtisalma
Subscriberthe force B = 6000NÂ
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April 6, 2018 at 10:52 pm
peteroznewman
SubscriberWhich part is being assembled? The top block? Why is Force 2 and 3 up and down? When you push the top block sideways with 6000 N, do you want the pin bonded to the top block?
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April 6, 2018 at 11:00 pm
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April 6, 2018 at 11:00 pm
thabtisalma
Subscriberok i want to apply a loads to simulate the assembly between the two blocks ; and i delate the contact between block and the pin,Â
the pin is fixed with the gris block ,Â
Â
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April 6, 2018 at 11:04 pm
thabtisalma
Subscriberwhen i delate the contact , i face problem in the strainÂ
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April 6, 2018 at 11:06 pm
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April 6, 2018 at 11:07 pm
peteroznewman
SubscriberQuelle est la force latérale pour? Décrivez le processus d'assemblage plus en détail. Essayez d'écrire en français et laissez Google fournir la traduction en anglais.
What is the side force for? Describe the assembly process in more detail. Try writing in French and let Google provide the English translation.
Â
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April 6, 2018 at 11:09 pm
thabtisalma
Subscriberthe erreur messege isÂ
The solver could not obtain convergent results for the nonlinear problem as constrained. Please refer to the Troubleshooting section of Help for more information.Â
Â
The non-converged resolution (identified as sub-increment 999999) is an output for the debug operations of the analysis. Results should not be used for any other purpose at this time.Â
The state of the contact has been subject to abrupt variation. Check the results carefully and look for a possible separation of the contacts.Â
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April 6, 2018 at 11:10 pm
peteroznewman
SubscriberSans le premier contact, il n'y a pas d'équilibre statique que le solveur trouvera. La force latérale pousse le bloc supérieur hors du bloc inférieur.
Without the first contact, there is no static equilibrium that the solver will find. The side force will push the top block off the bottom block.
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April 6, 2018 at 11:14 pm
thabtisalma
SubscriberI try to simulate a clamping force between the block in red and the pinch I disable the contact between them, this force is presented by the two forces C and DÂ
sorry my english isn't very goodÂ
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April 6, 2018 at 11:15 pm
thabtisalma
Subscriberso how to solve it ?Â
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April 6, 2018 at 11:21 pm
peteroznewman
SubscriberJe comprends que vous voulez une force de serrage de 500 N vers le bas sur le bloc supérieur. Ensuite, je vais supprimer "C" parce que ce n'est pas en baisse. La goupille dans le bloc supérieur est-elle ajustée ou est-ce un ajustement serré? Si je suppose que c'est un ajustement de dégagement, alors vous ne voulez pas un contact collé, vous voulez un contact de frottement. Qu'en est-il de l'ajustement entre la broche et le trou dans le bloc inférieur? Interférence ou autorisation?
Désolé, je ne connais que quelques mots en français mais Google peut traduire pour moi!
Â
I understand you want a clamping force of 500 N downward on the top block. Then I will suppress "C" because that is up not down. Is the pin in the top block a clearance fit or is it a press fit? If I assume it is a clearance fit, then you don't want a bonded contact, you want a frictional contact. What about the fit between the pin and the hole in the bottom block? Interference or clearance?
Sorry, I only know a few words in French but Google can translate for me!
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April 6, 2018 at 11:24 pm
peteroznewman
SubscriberLorsque deux blocs partagent une broche, la broche doit être la cible et les blocs doivent être le côté contact de la paire. Vous pouvez choisir les deux et inverser les définitions.
When two blocks share a pin, the pin should be the Target and the blocks should be the contact side of the pair. You can pick both these and Flip the definitions.
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April 6, 2018 at 11:25 pm
thabtisalma
Subscriberthere is no contact between the top block ant the pic ( i desable it )Â
and there is a frictional contact betwen the two blocksÂ
the bottom block and the pin are fxedÂ
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April 6, 2018 at 11:28 pm
peteroznewman
SubscriberHere is an ANSYS 18.2 archive that solves.
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April 6, 2018 at 11:32 pm
thabtisalma
Subscriber thank you so muchÂ
Â
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April 6, 2018 at 11:41 pm
thabtisalma
Subscriberi just want to undrestand why you added the friction to be the upper block and the pin, already we applied a loadÂ
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April 6, 2018 at 11:54 pm
peteroznewman
SubscriberLa broche aurait pu être un contact sans frottement ou frottement. Le résultat serait presque identique dans les deux cas. La charge est complètement séparée du contact entre la goupille et le bloc.
Si vous avez une force descendante assez importante, il est possible que la force latérale soit supportée par le frottement entre les blocs seuls sans aucune goupille, mais vous auriez besoin d'une force de descente supérieure à 6000 / 0,15 pour supporter la charge latérale.
The pin could have been frictionless or frictional contact. The result would be almost identical either way. The load is completely separate from the contact between the pin and the block.
If you have a large enough down force, it is possible for the side force to be supported by the friction between the blocks alone without any pin, but you would require a down force greater than 6000/0.15 to support the side load.
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April 7, 2018 at 2:22 am
RChandran
SubscriberCan I get your email?
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April 8, 2018 at 2:11 pm
peteroznewman
Subscriber@RChandran,  Whose email; mine or thabtisalma's?
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- The topic ‘contact between the surfaces’ is closed to new replies.
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