Parts that cross others in a separating contact

Carlos Fondevila

Hi all,

I have a simulation assembly, where I have several parts pushing a tubes (with an separating contact, with a 0,15 of friction coeficient). The tubes are fixed, and the other moves sliding throw 2 guides and for some reason, this part cross the fixed part.

In this assembly, I have 12 equal parts doing the same, but the problem occurs only in 2 of them.

Bellow you cas see in orange, the sliding parts, that moves throw its guides in the direction that are shown by the rows:

 

We have a contact botween the pushers and the tubes:

But when we start the simulation, 2 of the 12 pushers cross the tube, as you see bellow:

 

Do you kwow where is the problem?

Carlos Fondevila

More information, the tubes that are crossed, has have not reaction in its contact area:

But for example, in another tube that is not crossed, we have components in the contact area:

Girish Mudigonda_21018

Can you try converting the separating contact to bonded to see if the parts hold together?

Carlos Fondevila

Girish Mudigonda_21018 said:

Can you try converting the separating contact to bonded to see if the parts hold together?

Hi Girish,

Yes, if I convert the contats to bonded, the parts hold together.

Girish Mudigonda_21018

Carlos Fondevila said:

Hi Girish,

Yes, if I convert the contats to bonded, the parts hold together.

It indicates that the normals may be pointed in the wrong direction. Can you try recreating the connection using face to surface contact? Also, review the found gap/penetration for these connections under review regular connections option and confirm that it is as expected.