Calculating Properties for Temperature-Dependent Core Loss Curves in Maxwell

To be able to extract parameters from the temperature-dependent core loss characteristic curves, you first set the Core Loss Model of the material to B-P Curve as a material property in the View / Edit Material window.

Note: When a material has temperature-dependent core loss curves defined, neither the Thermal Modifier nor the Spatial Modifier are applicable to the material.

To calculate temperature-dependent core loss properties for a material:

  1. Click Tools > Edit Libraries > Materials.

    Alternatively, in the Project Manager tree, right-click Materials, under Definitions, and select Edit All Libraries.

    The Edit Libraries window appears.

  2. Click Add Material.
    The View / Edit Material window appears.

  3. In the Core Loss Model row, select B-P Curve from the Value drop-down menu.

    For Core Loss, click the B-P Curve button.

    The B-P Curve window appears.

  4. From the Temperature drop-down menu you can do either of the following:

    1. Select All to specify a single core loss curve.

    2. To create (or edit) multiple core loss curves, select Edit Temperature Dependence.

      • Click Add to add temperatures; then select the desired units. You can also select rows and Delete them, or Delete All.
      • Check Temperature dependent to enable use of the temperature-dependent B-P curves by the solver.
      • Click OK to close the dialog box and return to the B-P Curves window.

  5. Do one of the following to specify a B-P curve:

    1. Click Import Dataset to open the Import Dataset dialog box. Find and select the tab separated file containing the B-P curve data points. (Data points must start at the origin.)

    2. Enter the coordinates manually. (Data points must start at the origin.)

  6. Select the units in which the B-P curve is measured from the Core Loss Unit and B Unit drop-down menus.

  7. Type values and select units for the following parameters:

    • Mass Density
    • Frequency
    • Lamination Thickness

  8. Click OK.

    The View / Edit Material window reappears.

  9. Click OK to close the View / Edit Material window.
  10. Click OK to close the Edit Libraries window.

Related Topics 

Core Loss Model for a Maxwell Material