Discussion Overview
The discussion revolves around the challenges of importing a hysteresis material's loop into Ansoft Maxwell, focusing on the material library's capabilities and limitations. Participants explore methods for defining B-H curves and the implications for simulation accuracy in magnetostatic applications.
Discussion Character
- Technical explanation
- Debate/contested
Main Points Raised
- One participant describes the process of adding a material in Ansoft Maxwell, suggesting the selection of "nonlinear" for relative permeability and the use of B-H curve points.
- Another participant mentions the option to select "anisotropic" to define B-H loops in three directions, indicating a more complex approach.
- A participant using version 16.0.0 reports difficulties with inputting B-H curve points, referencing an error message.
- One participant asserts that only a quarter of the B-H curve can be used, specifically the positive quadrant, and that Maxwell accepts only a single B-H curve.
- Another participant expresses frustration over the inability to import a full B-H curve, questioning how motor designs can accommodate hysteresis materials.
- It is suggested that using average values for the B-H curve is a common practice in simulations.
- A participant notes that most magnetostatic simulators typically solve linear material models, highlighting the efficiency of linear simulations compared to those that include hysteresis.
Areas of Agreement / Disagreement
Participants express disagreement regarding the feasibility of importing a full B-H curve, with some asserting that only a single curve can be used while others question the implications for motor design. The discussion remains unresolved on the best approach to handle hysteresis materials in simulations.
Contextual Notes
Limitations include the specific version of Ansoft Maxwell being used, potential differences in features across versions, and the constraints of the software regarding B-H curve input.