Isotropic soft material : Iron sheets described by LS model
Presentation
This model defines a nonlinear B(H) dependence for an isotropic material, from predefined sheets included in the software or from personal materials that the user can import by himself (see : LS model identification with MILS). During solving the behavior of this model is the same as an isotropic spline but in post processing for the computation of iron losses this is a dedicated model of dynamic hysteresis (LS model : Iron losses model), all the data to compute iron losses in the post-processing are already in the material. The interest of this a model is to have an accurate computation of iron losses in post-processing without to get the trouble of convergence and computation time of an hysteresis model during solving.
Software aspects
- In the menu Physics, click on Materials.
- In the B(H) properties choose : Iron sheets described by LS model
- The user can choose one of the predefined sheets.
- The user can also import his own materials with its iron losses properties (see : LS model identification with MILS)
- Assign materials to a Laminated non conducting regionNote: the thickness of the sheet must be the same in the material and in the region.
- M270-35A
- M330-35A
- M330-65A
- M400-50A
- M600-50A
- M600-65A
- M800-50A
- M800-65A
For more informations about electrical steel sheets, see this page : Standards for electrical steel sheets
- In the menu Computation, click on Computation of iron losses
- Choose the Computation type
- Choose the Regions and the computation Interval.
- Select the model Model defined in the material
Limitations
This model can be only applied on Laminated non conducting region.