Rotation of rigid body

[Settler]

Hello all,

I have a rigid body (discrete 3d rigid - shell from solid) that I want to first translate (with fixed rotational degrees of freedom) and then rotate with the remaining two rotational degrees of freedom fixed.

When I apply those BCs at the reference point, I get the error "too many attempts for this increment".

Anybody could give any solution? I tried coarser and thinner mesh but nothing changed.

Thank you in advance!

 

[IceBreakerSours]

Too many .. is a symptom, not the disease. Search the .dat/.msg files for clues (warnings/errors).

Are you new to this forum? If so, please read these FAQ:

http://www.eng-tips.com/faqs.cfm?fid=376

http://www.eng-tips.com/faqs.cfm?fid=1083

 

[Settler]

Could a finer/better mesh solve the issue?

 

[Settler]

So what I get is this:

Finite rotation boundary condition specified in multistep three-dimensional analysis. Type=velocity should be used

and while I have the unsuccessful tries I get:

Excessive distortion at a total of 2 integration points in solid (continuum) elements

Excessive distortion at a total of 10 integration points in solid (continuum) elements

Excessive distortion at a total of 20 integration points in solid (continuum) elements

Excessive distortion at a total of 18 integration points in solid (continuum) elements

Excessive distortion at a total of 32 integration points in solid (continuum) elements

Any idea on how to solve it?

 

[IceBreakerSours]

Does any increment converge? What warning/error messages do you see?

Are you new to this forum? If so, please read these FAQ:

http://www.eng-tips.com/faqs.cfm?fid=376

http://www.eng-tips.com/faqs.cfm?fid=1083

 

[Settler]

No increment converge...

I have some contacts defined. The warning/error messages I get are those posted in the previous post.

When I run the same model with "tie" contact interactions instead of friction, the model runs very smoothly...