Understanding Hysteresis Curves: Mathematical Modeling for Nonlinear ODEs

  • Thread starter Thread starter mhill
  • Start date Start date
  • Tags Tags
    Curve Hysteresis
AI Thread Summary
The discussion centers on the mathematical modeling of hysteresis curves, specifically the relationship between magnetic field strength (H) and magnetic flux density (B). A proposed nonlinear ordinary differential equation (ODE) is presented to describe the hysteresis cycle. However, it is noted that B(H) is not a single-valued function of H, complicating the mathematical deduction of the hysteresis curve. The conversation emphasizes the challenges in deriving a differential equation for B as a function of H due to its inherent nonlinearity. Overall, the complexities of modeling hysteresis in this context are highlighted.
mhill
Messages
180
Reaction score
1
the idea is , if we have the magnetic field strength (H) and magnetic flux density (B) so we represent the 'hysteresis cycle' to be B(H)=B my question is could we deduce mathematically the hysteresis curve ?? for example if we can provide a model of a nonlinear ODE so

\frac{dB}{dH}= B^{r}- (1/B)

or something similar, i would be interested in the differential equation satisfied by B=B(H) thanks.
 
Physics news on Phys.org
Since B(H) is not a single valued function, or any simple function, of H, you cannot do what you are trying.
 
Thread 'Question about pressure of a liquid'
I am looking at pressure in liquids and I am testing my idea. The vertical tube is 100m, the contraption is filled with water. The vertical tube is very thin(maybe 1mm^2 cross section). The area of the base is ~100m^2. Will he top half be launched in the air if suddenly it cracked?- assuming its light enough. I want to test my idea that if I had a thin long ruber tube that I lifted up, then the pressure at "red lines" will be high and that the $force = pressure * area$ would be massive...
I feel it should be solvable we just need to find a perfect pattern, and there will be a general pattern since the forces acting are based on a single function, so..... you can't actually say it is unsolvable right? Cause imaging 3 bodies actually existed somwhere in this universe then nature isn't gonna wait till we predict it! And yea I have checked in many places that tiny changes cause large changes so it becomes chaos........ but still I just can't accept that it is impossible to solve...
Back
Top