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Overunity Machines Forum



Magnetic Harmonic Drive System!

Started by gravityblock, May 02, 2015, 12:03:19 AM

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gravityblock

May 02, 2015, 12:03:19 AM
Magnetic harmonic drive demonstration, https://www.youtube.com/watch?v=djKkGAmgh-w

* Contactless reducer
* No overload damage
* No wear
* Input axle protected

Gravock
Insanity is doing the same thing over and over again, and expecting a different result.

God will confuse the wise with the simplest things of this world.  He will catch the wise in their own craftiness.

gravityblock

#2
May 03, 2015, 01:38:43 AM
Quote from: MarkE on May 02, 2015, 08:44:07 PM
http://www.magnomatics.com/

Yes, but what about a concept that involves combining the principles of a Harmonic Drive with a rotating electromagnetic field, in a manner where by the combination produces high output torques without the rotation of the electromagnetic elements or permanent magnets, rotors, bearings or any other masses at speeds corresponding to the electrical frequency, thereby drastically reducing the device's inertia.

Drastic reduction in inertia, as compared to conventional electrical devices, provides for
increased power rate, power rate to weight, and power rate to electrical loss characteristics.

Reference:  Unclassified document on an elecromagnetic low inertia Harmonic Drive from Wright-Patterson Airforce base in 1963, http://www.dtic.mil/dtic/tr/fulltext/u2/442879.pdf

Gravock
Insanity is doing the same thing over and over again, and expecting a different result.

God will confuse the wise with the simplest things of this world.  He will catch the wise in their own craftiness.

MarkE

#3
May 03, 2015, 04:10:24 AM
Quote from: gravityblock on May 03, 2015, 01:38:43 AM
Yes, but what about a concept that involves combining the principles of a Harmonic Drive with a rotating electromagnetic field, in a manner where by the combination produces high output torques without the rotation of the electromagnetic elements or permanent magnets, rotors, bearings or any other masses at speeds corresponding to the electrical frequency, thereby drastically reducing the device's inertia.

Drastic reduction in inertia, as compared to conventional electrical devices, provides for
increased power rate, power rate to weight, and power rate to electrical loss characteristics.

Reference:  Unclassified document on an elecromagnetic low inertia Harmonic Drive from Wright-Patterson Airforce base in 1963, http://www.dtic.mil/dtic/tr/fulltext/u2/442879.pdf

Gravock
Do you understand that by "reducing inertia" they are talking about reducing the inertial mass of the rotating members by design?

gravityblock

#4
May 03, 2015, 01:09:21 PM
Quote from: MarkE on May 03, 2015, 04:10:24 AM
Do you understand that by "reducing inertia" they are talking about reducing the inertial mass of the rotating members by design?

No, they're not talking about using lighter parts to 'reduce' the 'inertial mass' of the rotating members by design.  They are referring to replacing the rotating mechanical wave generator, which has mass, with a rotating electromagnetic wave generator to deform the flex spline, which eliminates the mass of the mechanical wave generator and eliminates the mass of the rotating members of the motor that drives the harmonic drive.  This has the effect of 'reducing' the overall 'inertial mass' of the harmonic drive itself, thus it's called a low inertia harmonic drive.

Gravock
Insanity is doing the same thing over and over again, and expecting a different result.

God will confuse the wise with the simplest things of this world.  He will catch the wise in their own craftiness.
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