I mean if you picture/map magnetic field lines from stator -> shielded magnet together with magnetic field lines from rotor (ring magnet)

the diagram will be same as with Lorentz force.

Quote from: stoyan_ on March 10, 2016, 07:24:35 AM
so the configuration of magnetic field lines from shielded magnet and the ring magnet  Doesn't represent the same picture as attached by you ?

Sorry. I don't see how they are even close to being the same.

Now you should see 

Ok but the flux looks like it's trapped in the Mu-metal shield. If it's trapped in the shield, how does it interact with the field from the large circular magnets?

A current carrying wire doesn't keep all the flux trapped in the wire. If we saturate your shield then the escaping field is not longer circular. It leaks out of all the edges of the Mu-metal.

If you idea works, we can use at least two to get the attraction and the repulsion working for us. I have four in the image but really only two would be relevant for what we want.

I initially thought you were going to use the open side of the magnets as the usable flux direction. That part isn't trapped in the cow metal.

Worth a try but I don't thing it'll work. Maybe if the cow metal is thin enough on one side so it gets saturated, then the other side can still leak out for interaction with the other field?