The object rotates in rigid body

Mikel
Posts: 54
Joined: Sat Aug 14, 2010 8:59 am

The object rotates in rigid body

Postby Mikel » Mon Apr 23, 2012 3:26 pm

Hey.
I have a problem with an object and you do not know how to fix it, the truth is that this never happened.
I'm making a barrel that floats upright in a wave, you asigo rigid body mass and assigned him asking me Realflow.
The simulation begins well, but gradually the barrel is turning until it is horizontal, I played all the parameters and I can not make it stay upright.
You can advise me what else to do?
A greeting


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bitSeq
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Re: The object rotates in rigid body

Postby bitSeq » Tue Apr 24, 2012 12:11 am

Try attaching a heavier object to the bottom of the barrel.

Mikel
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Joined: Sat Aug 14, 2010 8:59 am

Re: The object rotates in rigid body

Postby Mikel » Tue Apr 24, 2012 8:44 pm

Thank you for your answer.
I guess I'll have to do with multijoints, they?

chrispan
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Joined: Fri Jan 28, 2011 2:23 pm

Re: The object rotates in rigid body

Postby chrispan » Tue Apr 24, 2012 8:58 pm

Hey,
I think it has something to do with the mass center of your barrel. If you put the center down to the bottom of the barrel (sorry but I forgot how to do it, but I think you have to change the pivot point?!), it maybe should float upright.

Mikel
Posts: 54
Joined: Sat Aug 14, 2010 8:59 am

Re: The object rotates in rigid body

Postby Mikel » Wed Apr 25, 2012 9:22 am

Thank you.
I actually lowered the center of gravity and barrel no longer turns.
A greeting

Mikel
Posts: 54
Joined: Sat Aug 14, 2010 8:59 am

Re: The object rotates in rigid body

Postby Mikel » Tue May 29, 2012 10:12 pm

Hello again.
I'm stuck with the scene of the barrels.
I tried to do the scene with a wave and was not very good.
Now I'm making with Hybrid, but the barrels up to the surface.
I tried them I have lost more mass and center of gravity, but still rising.
Can help me?
thanks

fkfx
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Re: The object rotates in rigid body

Postby fkfx » Wed May 30, 2012 9:43 am

Open File -> SummaryInfo and check your barrels' Mass values. Try to match something realistic (or something far beyond in order to test things).

Mikel
Posts: 54
Joined: Sat Aug 14, 2010 8:59 am

Re: The object rotates in rigid body

Postby Mikel » Thu May 31, 2012 6:39 pm

Thank you.
But there is no way that barrels work correctly.
One means of simulating perfectly, the other keeps going up.
a greeting


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