F.B.D.I.S.S.M - Flux.Boosted.Dual.Induction.Split.Spiral.Motor.

[leeanderthal]

I am very interested in this design.  I've read all of the posts regarding the FBDISSM and Iam still puzzled about one thing.  How can the rotor magnets be oriented the way shown in the diagram?  I've tried building a stack of magnets oriented with all of the poles facing in the same direction and they don't like it at all.  they repel each other.  Some insight would be appreciated.

Ray

[Honk]

The rotor magnets is no problem in this motor. They are located to far away from each other to be in any repel mode.
But the stator magnets, on the other hand, will be strongly repelled away from the closest neighbour magnets.
This is why I keylock the magnets into place. This prohibits them from slipping around and also from getting
janked out of place by the strong attraction forces between rotor and stator magnets.
It is no problem that the stator magnets are being repelled by each other. It will not damage them at all.
Once mounted all of the stator magnets will form a long wall of uniform magnetic field.
And then the rotor magnets will travel along this uniform field towards the narrow end where they would stop if it
hadn't been for the electromagnet that helps the rotor magnet past the sticky spot.

[leeanderthal]

Thanks Honk,

I mistyped, I meant stator not rotor.  Another thought,  If the majority of work in this system is done by the interaction of the rotor and the spiral configuration of the stator magnets and not by the EM's then couldn't an electric motor or some other source of power with X amount of horsepower be connected directly to the FBDISSM without the EM's (in which case it would become just a SSM) and have a power output greater than X ?

Ray

[Honk]

Pehaps you need to clarify this to me!
If I get you right, then your'e meaning that motor connected to the shaft shall assist the rotor to overcome the sticky spot instead of a EM.
If so it must be pulsed at the end positions. But I don't think that will work any good. The forces are tremendously high at the sticky spot.
The braking is calculated to 350lb. Kind of hard and inefficent to overcome that spot by brute force.

[leeanderthal]

Pehaps you need to clarify this to me!
If I get you right, then your'e meaning that motor connected to the shaft shall assist the rotor to overcome the sticky spot instead of a EM.
If so it must be pulsed at the end positions. But I don't think that will work any good. The forces are tremendously high at the sticky spot.
The braking is calculated to 350lb. Kind of hard and inefficent to overcome that spot by brute force.
Yes, that is what I mean.  If a motor is used to overcome the sticky spots, the power that the motor produces in between the sticky spots is going to be added to the power produced by the SSM and is not going to be wasted.  Excess power can be stored in a flywheel to help overcome the high forces at the sticky spots.