[MBDyn-users] epicycloidal gear

florent combes combes.florent at gmail.com
Thu Jul 8 10:24:59 CEST 2010


Thanks for the answer, so I have to continue with my paper sheet and my
pen....

2010/7/7 Pierangelo Masarati <masarati at aero.polimi.it>

> florent combes wrote:
>
>> Hello,
>>
>> Is there a way to create an epicycloidal gear with MBDyn? I am thinking on
>> how I can do, and because there is no cog-wheels, I wanted to make a disk
>> with a rotation, and another disk driven by the first one (rolling without
>> sliding) with a constant space between their two centers, but I am not
>> sure
>> it is possible. (here is a simple epicycloidal gear with just two disk: a
>> planet gear in rotation around a sun gear)
>>
>> Does anyone already tried or think of a way to do it?
>>
>
> Hi.  There's nothing like gears in MBDyn so far.  The reason is that we
> never had to model anything in that field.  It may not be too difficult to
> implement basic blocks to deal with ideal gear ratios between the relative
> rotation of bodies.  Elastic gears, friction and so may need a bit more
> care.  So, in short there's no such capability, but there might be in the
> future.  As usual, patches are welcome.
>
> Cheers, p.
>
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