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Author Topic: Need some help with magnetic field simulation data analysis  (Read 5007 times)

shadowpt

  • Jr. Member
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  • Posts: 73
I have been, for the past months, conducting inumerous simulations with different magnetic configurations (mainly with 1 set of stators and a moving magnet along the field produced by each configuration) trying to discover a possible way to modify the field in some way without violating any law. The simulations consisted in a set of stator magnets configured in a certain way (each configuration either similar to pre-existent ones or not at all similar) and a magnet moving in a horizontal path from left to right (mainly between -5 to 5 or -10 to 10 cm).
Now, all these months, I have been studying the effects that same magnetic fields have against each other and so far I noticed that for every 0 force in one axis, there has a correspondent maximum force in the other axis, for ex: When Fx is 0, Fy is a peak, or very near a peak, the opposite also confirmed to be true.

Since then, I understood that what would be better was for the path to contain a null point (when both forces are near 0 before they interact with the stators field and after they leave that same field), which would allow the possibility to make use of the force between those two points without the gain being affected when the magnet enters and leaves the field, but that would be a problem.

The total sum, of any of my simulations, of forces in the X direction always total 0 (obviously), so no matter what kind of freaky configuration I could have imagined, there would be no gain or loss, the magnet always conserves the energy and velocity of entry (on a perfect system with no atryt or any form of energy loss).

So I thought that if there is any possible way to achieve such impossible dream, it has to be related to field manipulation.

Now, for those that are well acquinted with the behaviour of magnetic fields on solid magnets, you know that you can decrease the range of a magnet but it will increase the field strength on that range, and vice-versa. So, basically, its like a ballon (rude example), you can squish it from the sides but it will grow from bottom and top, doing the opposite will have the opposite reaction.

While this is frustrating for dreamers (like me), I have encountered a simulation result that I cannot understand so this is why I am here posting my experience with you to find a decent feedback, something from anyone that understands this better than me.

The following attachments are a screenshot of a -10 to 10 cm simulation of forces between a moving magnet along the BOTTOM of a configuration of stator magnets, in a horizontal path from left to right.

I would like to ask you is if the example of a magnet producing a horizontal + vertical movement in such path with such configuration could result in overunity, or any form of energy gain.

I ask this because the attached graph shows a field that, in 0.4 position, both Fx and Fy forces are near 0 (and I believe that if I tweak the stators a bit, both would be 0) and that is not happening at the end of the magnetic field, but instead in the middle, the total ammount of Newton resulted in the sum of that path (from -10 cm to 0.4 cm) is 197N (wich by the laws tells us that beyond 0.4cm the total will be the opposite so that it results in 0).

The other attachment represents the suggestion that I want some feedback on, couldn't I gain energy with a magnet following the specific path in that example?

Any form of feedback is welcome as I can't get past this with such small knowledge (I never even had a clue about magnets and fields or even using FEMM before I started this).
Also, I have posted the values of that simulation for those that want to study the data in a better detail. In the text file, the data on the left represents forces in X, the other is Y. It is a total of 2002 movements between -10cm to 10cm in 0.01cm increments.

Thanks for your time.

PS: Forgot to add, the magnets used are grade n40 neodymium magnets with the size of 1.3cm and 0.5cm.