Soft Magnetic Material

 Description The magnetization characteristics, ${\mathrm{\mu }}_{r}$ vs $B$, of the soft magnetic material included in this library are approximated by the following expressions ${\mathrm{\mu }}_{r}=1+\frac{{u}_{i}-1+{c}_{a}{B}_{n}}{1+{c}_{b}{B}_{N}+{B}_{N}^{n}}\phantom{\rule[-0.0ex]{3.0ex}{0.0ex}}{B}_{N}=\left|\frac{B}{{B}_{{\mathrm{\mu }}_{\mathrm{max}}}}\right|\cdot$

Variables

 Name Units Description Modelica ID $B$ $T$ Flux density in ferromagnetic material B ${\mathrm{\mu }}_{r}$ $1$ Relative permeability in ferromagnetic material mu_r

Parameters

 Name Units Description Modelica ID ${B}_{{\mathrm{\mu }}_{\mathrm{max}}}$ $T$ Flux density at maximum relative permeability B_myMax ${\mathrm{\mu }}_{i}$ $1$ Initial relative permeability at $B=0$ mu_i ${c}_{a}$ 1 Coefficient of approximation c_a ${c}_{b}$ 1 Coefficient of approximation c_b $n$ 1 Exponent of approximation n

Data

 Material ${\mathrm{\mu }}_{i}$ ${B}_{{\mathrm{\mu }}_{\mathrm{max}}}$ ${c}_{a}$ ${c}_{b}$ $n$ BaseData 1 1 1 1 1 Steel Steel_9SMnPb28 400 1.488 1200 3 12.5 Steel_9SMn28k 500 1.036 43414 35.8 14 DC01 5 1.1 6450 3.65 7.7 DC03 0 1.05 27790 16 10.4 X6Cr17 274 1.1 970 1.2 8.3 AISI_1008 200 1.17 8100 2.59 10 AISI_12L14 10 0.94 5900 4.19 6.4 Electric Sheet M330_50A 500 0.7 24000 9.38 9.6 M350_50A 1210 1.16 24630 2.44 14 M530_50A 2120 1.25 12400 1.6 13.5 M700_100A 1120 1.2 20750 3.55 13.15 M940_100A 680 1.26 17760 3.13 13.9 Pure Iron RFe80 (Hyperm 0) 123 1.27 44410 6.4 10 VacoferS2 (99.95% Fe) 2666 1.15 187000 4.24 19 Cobalt Iron Vacoflux50 (50% CoFe) 3850 1.75 11790 2.63 15.02 Nickel Iron Mu Metal (77% NiFe) 27300 0.46 1037500 3.67 10 Permenorm3601K3 (36% NiFe) 3000 0.67 500000 2.39 9.3

 Modelica Standard Library The component described in this topic is from the Modelica Standard Library. To view the original documentation, which includes author and copyright information, click here.