Magnetic Flywheel: Can It Achieve Higher Rpm?

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The discussion revolves around the potential for a magnetic flywheel to achieve higher RPMs through the interaction with a smaller, attracted body. Participants explore the feasibility of accelerating this smaller body to exceed the flywheel's RPM, suggesting that additional energy could facilitate this. The conversation also touches on concepts like magnetic coupling and the slingshot effect, particularly in a hypothetical scenario involving an asteroid and a spinning disk in space. Concerns about the initial spin-up process and the mechanics of magnetic attraction are raised, along with inquiries about the optimal RPM for generating electricity. Overall, the thread highlights the complexities and theoretical possibilities of magnetic flywheel dynamics.
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This is a poorly posed question but i do not know another way to ask so,
a magnetic flywheel is rotating at X rpm, a weakly attracted much smaller
body is attracted to the flywheel, at some point in the smaller bodier decent
to the flywheel, can it be given some acceleration that will take it beyond
the flywheels rpm?
 
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As long as one is able to apply additional energy in some fashion to the "smaller body" in such a way as to incite further acceleration, sure, it's possible.
But I'm not sure from your description as to what you would hope to gain from this that could not be done more simply. Could you elaborate?
 
Seems like you could get another magnetically-coupled disk to spin at twice the angular velocity or more. Certainly steady state you could, as long as the magnetic pulses lined up. I'm not sure about how best to create the startup transient for the 2nd disk though...
 
Can you elaborate berkeman, it does not matter about the secondary spin rate, as long as it is higher than the primary.
 
I guess I'm picturing something like a main flywheel with 4 magnetic poles per rotation, and a smaller flywheel with 2 poles per rotation. If the small one initially has 2x the angular velocity of the large one, and the poles are lined up to give a positive push from the large one to the small one each time the poles pass, then the small one will be stable at 2x the angular velocity of the large one. Seems like that would work. It's the initial spin-up part that I have trouble thinking of tricks to accomplish so far...
 
May be if the primary attractor had a mulltitude of poles, and secondary
had been (spun up) by an outer influence.? thanks for your help it is welcome.
 
um i don't quite know what you were thinking of, but i have a vision. lol
ok so let's be in space. we have a disk that is big.. no need to be specific.
on this disk there are 4 mountains of rare Earth at 4 corners. it is spining perfectly like a wheel apon an axis. a asteroid of iron is incoming on a path that will just miss the edge of the disk. the iron is attracted to the magnetic rare earth, so it changes the path that the astroid was on. the astroid instead, starts to circle arroud the disk and balance the magnetic pull with its inertia. could the astroid develope an escape velocity that is greater than its entrance velocity?
 
skeletonic said:
um i don't quite know what you were thinking of, but i have a vision. lol
ok so let's be in space. we have a disk that is big.. no need to be specific.
on this disk there are 4 mountains of rare Earth at 4 corners. it is spining perfectly like a wheel apon an axis. a asteroid of iron is incoming on a path that will just miss the edge of the disk. the iron is attracted to the magnetic rare earth, so it changes the path that the astroid was on. the astroid instead, starts to circle arroud the disk and balance the magnetic pull with its inertia. could the astroid develope an escape velocity that is greater than its entrance velocity?
If the asteroid is (captured) by the magnetic disc then no, but what about
the sling shot effect used by satalites.
 
wolram said:
This is a poorly posed question but i do not know another way to ask so,
a magnetic flywheel is rotating at X rpm, a weakly attracted much smaller
body is attracted to the flywheel, at some point in the smaller bodier decent
to the flywheel, can it be given some acceleration that will take it beyond
the flywheels rpm?

Only the bearings are magnetic and have no spin, they are static as to rotation and the wheel is not magnetic. so there would be no effect on another body. At least none to make it spin.
 
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i know this is an old dead topic (its amazing what you can find on google) but maybe my posting will bring it to everyone's attention this kinda pertains to something i am working on. please note i have no idea about physics just a nagging dream about this thing with a motor and magnates so i figure with the blue prints in my head, build it and find out the messed up parts is it changes as i learn more about what i am doing upgrading just a little like adding a braking system based on heat and on manual shut off for control purposes... yeah I'm insane but aren't we all a little insane besides if it helps the world who cares about me

anywho what would the X RPMs of a magnetic flywheel be to get optimum Amps and Volts?
 
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