Cobham

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Model the magnetization process for hard magnetic materials and remnant magnetization vector when the process is complete. Further demagnetization and remagnetization of the sample in situ can also be simulated.

The magnetization and demagnetization module has been developed specifically to model the magnetization process for hard magnetic materials. The simulation records the progress of the material magnetization along the virgin characteristic, until the magnetizing field starts to reduce. Secondary 'demagnetization' characteristics are then used to determine the remnant magnetization vector when the magnetization process is complete. In both the magnetization and demagnetization processes, the effect of eddy currents and circuit transients are captured.

 

The result is a magnetized sample, where the magnetization distribution is correctly defined. This can then be used in other simulations to model the performance of the magnetized sample in its designated application (eg. an electrical machine).

 

During the simulation of the application further demagnetization and remagnetization of the sample in the application device due to the presence of current sources can also be modelled.

 

 
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