Using a shield to assist swap of polarity in a magnet

[Low-Q]

I have made an animation which is showing an array of magnets which rotates around inside a magnetic field.
There are two grey parts in there too. These are iron tubes/shields where the magnets can "hide" and do its polarity swap without interference of the magnetic field outside. The swap are in reality done gradually by rotating the magnets. All magnets are "trapped" by guides all the way. These guides are twisting 180 degrees inside each shield, which each of the magnets follows.
It is only outside the shield, the magnets are repelled or attracted by the bigger stator magnets.

I have simulated the cross section of the polarity swap in FEMM with and without the shield. It requires lots of energy to swap polarity without the shield, and no energy WITH the shield.

This means it will not take energy to change the magnets from attraction mode to repelling mode, and vica versa.

Take a close look at it if you want, and comment, question, anything are welcome

[Low-Q]

Further simulation of the model above shows promising results. There are lots of torque in the same direction during the swap period inside the shield
As it doesnt take energy to swap the polarity as long the magnets are inside the shield (What I found in another simulation), the math should be a proof of a working design

Vidar

[nievesoliveras]

All magnets are "trapped" by guides all the way. These guides are twisting 180 degrees inside each shield, which each of the magnets follows.

That is a good idea.
The problem I see is to maintain those magnets in line to enter the magnetic shield while circulating around.

Jesus

[shylo]

Hi Vidar .....are you saying as the central magnets enter and are traveling through the steel shields ,they rotate,.....thereby reversing polarity as they exist the steel shields.....if this is correct...........how would this be accomplished?.....shylo........btw the steel sheilds would have to be thick enough to absorb all the magnetic flux from the central and external magnetic fields....so as not to interact with the magnets within the shield themselves......just questions I have not trying to be rude........thanx ....shylo

[Low-Q]

1. The rotating magnets are locked in position by a track - much like a rollercoaster. 2. The shield must be big enough. No problem. This is both engineering issues which should be possible to solve with relatively small amount of engineering skills. Thanks for your feedback:)