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Message #04385
Re: clumps made of overlapping spheres
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To:
yade-dev@xxxxxxxxxxxxxxxxxxx
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From:
Janek Kozicki <janek_listy@xxxxx>
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Date:
Fri, 14 May 2010 11:27:17 +0200
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Face:
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In-reply-to:
<1273828854.4951.6.camel@flux>
Václav Šmilauer said: (by the date of Fri, 14 May 2010 11:20:54 +0200)
> > inertial matrix?
> Yes, that one will be computed wrong, i.e. as if there were no overlap
> of spheres == as if the overlapping zones had double density. The
> difference will be quite low if the overlap is 1/10.
exactly :) I ponder if I could derive with maxima a formula for
inertia of that overlapping part. Just pondering, no promises ;)
> > collision problems - two spheres from the same clump colliding with another sphere?
> No problem with that, there are never collisions within one clump.
I meant a sphere from another clump, manages to collide with both
spheres that are overlapping. But now I see that in fact there isn't
any problem here and simply has to work.
I assume that apart from inertial matrix it's going to be behaving in
correct manner. ;)
--
Janek Kozicki http://janek.kozicki.pl/ |
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