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Rotation about the point

Posted 29 mars 2012, 12:31 UTC−4 Modeling Tools & Definitions, Parameters, Variables, & Functions Version 4.2a 1 Reply

Ramamoorthy Venkataramanan
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Hi,

Roller is placed on the sheet and sheet is start moving because of roller rotation. I just want to give a roller rotation using 'Prescribed Dsiplacement' b.c in x and y about a point and also if the center point is different from origin, how we can give.

Pls clarify. Thanks.


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Thanks,
Ramamoorthy V
1 Reply Last Post 29 mars 2012, 16:26 UTC−4
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago 29 mars 2012, 16:26 UTC−4
Hi

if you are in "solid" and your roller has a internal circle/cylinder shape (and not a point that gives singularity) you can use the rigid connector and prescribe the CoR (centre of rotation), or you migfht add a wek constraints on "r" a cylidrical coordiante defined at the centre of rotation for your circular "rolling" boundary. Or you try the "roller condition on a circle/cylinder

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Good luck
Ivar
Hi if you are in "solid" and your roller has a internal circle/cylinder shape (and not a point that gives singularity) you can use the rigid connector and prescribe the CoR (centre of rotation), or you migfht add a wek constraints on "r" a cylidrical coordiante defined at the centre of rotation for your circular "rolling" boundary. Or you try the "roller condition on a circle/cylinder -- Good luck Ivar

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