What are the models provided in Flux for the B(H) equivalent dependencies?

Yann_Le_Floch
Yann_Le_Floch
Altair Employee
edited November 2021 in Altair HyperWorks

The models provided in Flux for the B(H) equivalent dependencies are presented in the following table.

ModelHypothesisEquivalent B(H) curve
Non-modified curve*-
Real B(H)
Sinusoidal induction

B sinusoid

B = Bmsinωt

This model is based on the following energetic equivalence:

image

This model is more adapted for the simulation of devices with a voltage supply.

Sinusoidal H field

H sinusoid

H = Hmsinωt

This model is based on the following energetic equivalence:

image

This model is more adapted for the simulation of devices with a current supply.

Mixed-

This model is the linear combination of the two preceding ones:

Beq=αBeqBsin+(1-α)BeqHsin

Heq=αHeqBsin+(1-α)HeqHsin

where α is a weighting coefficient chosen empirically in the interval [0, 1]

Average of ν over a period

B sinusoid

B = Bmsinωt

This model relies on an equivalent reluctivity νeq calculated by getting the average of reluctivity over a period of time:

image

It is much less precise than the others for high values of magnetic flux density, as it does not observe the asymptote of µ0 slope

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