Atraction motor vs repulsion motor question

[mangyhyena]

If I've got my information correct, a magnet motor that uses repulsion will wear the magnets out fairly quickly.  But an attraction magnet motor doesn't wear the magnets out.  Is that correct?

If it is, wouldn't an attraction setup be preferable to a repulsion setup, from a practical stand point?

BTW, nice forum you all have here.  Might be a good time to introduce myself a bit.  I have a family of 4, soon to be 5, and I'm fast approaching 40.  And I frigging hate our dependence on OPEC and the utility company!
I'm working on a magnet motor and yea, against all comments/common sense from many physicists I think it will work.  lol.  The setup I'm going for will be on a horizontal drum.  I'm going to place tracks of magnets around the drum.  In this way I believe I can use multiple stators on each track.  I intend to eliminate the gap/sticking point by placing another short array on the other side of the stator so the stator never is without something to attract to.  The short array should carry through the gap and back to the beginning of the main array/track.  The longer I make the drum the more tracks---and stators---I can fit onto it/around it.  I'm hoping to gain enough speed and HP to run an alternator or generator so I can charge a battery bank for home use.  A brake on the drum should allow me to slow it down if it goes too fast.  And if it doesn't go fast enough I'm going to post here and see if you all can figure out how to make it usable, right after I get done crying in frustration.  lol.

[mangyhyena]

I came across this topic in another thread.  It got a little heated.  Sorry if I posted something inflammatory.  That wasn't my intention.  There is just so little info about this out there in virtual no-man's land.

[AB Hammer]

Greetings mangyhyena,and welcome to the forum.


Opposites attract, just like in relationships. And life is fine as long as repel keep there distance. LOL

I have always herd the attract is best but, I have had better effects with repel. But I believe that repel is only bad if you force them into a tight spacing. I believe everyone has herd the story of it worked for awhile and then stopped.

[fritz]

I think that an increased magnetic flux density
always stresses a magnet.
This can be caused by attraction or by repelling
action.
In a magnetic motor every magnet is affected by
a ripple of dynamic flux density changes.
As long as this ripple doesnt exceed certain
limit - there is pretty no wear-out.
At the moment when you overstress the magnet -
the field gets weaker.
From this point of view - a setup with mixed symmetric
repelling _AND_ attracting action would double
the amount of energy which can be extracted within
certain density limits.

[mscoffman]

Hi All;

Fritz; I think you are pretty close.
This has never been explained to my satisfaction...so I will ...I think magnets erase because of nanoscopic
domain heating to the Curie Point Temperature. I mean that would make sense. This occurs statistically actually
quantum statistically just like temperature distributions of molecules occur in the same way. Also, domain strength
is probably distributed statistically as well. That is certain number of domains are inherently weak so they demagnetize
first, leaving the rest to restore each other unless the whole is grievously treated. So the total magnetization parameter
changes slightly long before the total bulk magnet actually erases. This domain erasure then follows the "bathtub curve"
of "infant mortality" of electronic components. The problem is: I think that magnetic motors may exist but do not have
valid "design margins" therefore changes to magnetic parameters abnormally affect their operation. So if the parmeters are
carefully tweaked for the device to go into operation, then small changes in magnetic parameters may create substantial
differences in the device's operational state. The above holds for neodymium magnets but not ferrite, as been pointed out
in other venues; ferrite magnets can actually have their domains flipped and then flipped back by exposure to stronger
magnetic fields.

---

link to wikipedia "bathtub curve";

http://en.wikipedia.org/wiki/Bathtub_curve


link to wikipedia "Curie Point Temperature";

http://en.wikipedia.org/wiki/Curie_temperature


:S:MarkSCoffman