By "running" I mean the rotor moving when the magnets are there and resting
when they are not. Since this is a testing setup, I wanted to be sure it
would work as in the real world before I tried various configurations of
magnets. The setup in my last attachment does respond as expected.
I was just making the rotor magnets "invisible " with Gen/invisible in
realtime rendering which as I see now is not the correct way to remove their
effect. Deleting the rotor magnets does stop the rotation.
The Perendev Permanent Magnet Motor uses many magnets on 3 rotors with many
magnets on 3 corresponding stators ... and I want to simulate one of the
rotor-stator configurations to see what how it behaves. There are also
magnetic shields (mu-metal) in-between each of the magnets ... I'm not sure
how RS3D would simulate that material which changes the direction of the
lines of force.
Cheers, Chuck Henry
----- Original Message -----
From: "studio" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Friday, December 15, 2006 1:43 AM
Subject: Re: Wheel Constraint
I ran into the same problem ... when you make the stators invisible the
rotor keeps running .... even with the Phys/spin and velocity at 0 0 0.
Invisible ? No idea what you mean here . Anyway , the simple fact
is that the last rotor project you send to the list had a built-
in spin attached to the rotor . Set that spin to 0,0,0 and the
machine no longer ran .
I quit in frustration for a while and came back to it this morning to
check
the Inertia .... if you set Inertia to 0 0 0 and with stators invisible
...
there is no spinning. Which stands to reason .... things in motion tend
to
stay in motion (Inertia 0 0 .001)... things at rest tend to stay at rest
(Inertia 0 0 0).
Yes , the Rotor stays at rest even though you have a magnetic
field situation set up . This machine will sit there and do noth-
ing unless you add the .001 inertia to it .
I set the rotors and stators to +.2 and -.2 and the inertia of the Rotor
to
0 0 .001 ..... then it works as desired with the Phys/spin and velocity
at 0
0 0. And, I set the rebound energy to 0 0 0 ....
Check out the attached file and let it run to the end as Stefan pointed
out.
Finally it works with the rotation constraint only.
Well I ran this attached file (first increased the frame
amounts to 3500) and it would just roll back and forth ...
back and forth ... for 3500 frames . Is this what you mean
by "running" ? Perhaps I'm mistaken in assuming that you
were trying to get the rotor to spin the way it did in your
last project file ?
Thanks .
studio
