Software Simulation of Magnetic Viscosity

[gravityblock]

Have you guys seen the Steorn patent for a test rig?

http://www.google.com/patents?id=1dOyAAAAEBAJ&zoom=4&pg=PA1#v=onepage&q=&f=true

Yes, I have a thread for that patent, http://www.overunity.com/index.php?topic=8763.0

The thread died very quickly and it won't surprise me if this thread dies a quick death also.

GB

[gravityblock]

I found an abstract for an article which I believe will allow us to simulate the magnetic viscosity effect by optimum simulation of B-H curves in FEM analysis of magnetic fields, http://library.witpress.com/pages/PaperInfo.asp?PaperID=9161

The paper introduces a new algorithm for the numerical simulation of magnetisation curves, suitable for Newton iterative process in FEM analysis of non-linear magnetic fields, both for dc magnetisation curves and for hysteresis loops.

The algorithm, from the complete data sheet of the magnetic material, determines the number and the location of the points which set is minimum and ensures a global error lower that a control quantity.

Introduction in FEM analysis of static electromagnetic fields where non-linear materials are present, it is necessary to determine numerically the magnetic field H from the knowledge of the magnetic flux density B as well as dH(B)/dB.

The same problem holds for dynamic simulations, where the hysteresis of the material has to be taken into a...

Electrical engineers know the magnetic viscosity effect as either "anomalous loss," "excess loss," or "dynamic hysteresis".

If this is the case, then the necessary code changes shouldn't cause any suspicion as to motives from others.  The code changes would allow to simulate a dynamic hysteresis instead of a static hysteresis.  This optimized code may even take demagnetization from heat into account and allow us to have a visual if there is any cooling effects in the materials. The only problem is the cost for the article.  The complete book is even more.

If anyone could find this paper or another similar paper and post it here, I would greatly appreciate it.  I will continue searching.

Thanks,

GB

[synchro1]

JLN has offered to release a new S2Gen calorimetric test video soon. Preliminary tests of his 2SGen V6 so far indicate a joule heat loss from the inductor to cooling from the toroid that results in an ambient balance of toroid temperature. His forthcoming testing will help supply parameters to advance a simulation. I bet he'll be interested in cooperating with this software project.

[gravityblock]

JLN has offered to release a new S2Gen calorimetric test video soon. Preliminary tests of his 2SGen V6 so far indicate a joule heat loss from the inductor to cooling from the toroid that results in an ambient balance of toroid temperature. His forthcoming testing will help supply parameters to advance a simulation. I bet he'll be interested in cooperating with this software project.

That would be great, Thanks Synchro.

GB

[gravityblock]

Finite element simulations of the eOrbo implementation provided by Steorn, confirms the lack of back EMF and the increase in kinetic energy of the system's rotor. The simulations are run in Flux3D from Cedrat.  These tests may be simulating the effects of magnetic viscosity and is similar to the real tests performed on The Patented Magnetic Torque Measurement System.  Why aren't we running any simulations, or trying to figure out how to run these simulations, or building a torque measurement system?

http://www.steorn.com/orbo/eorbo/3-finite-element-simulations.aspx

GB