The magnetic force computation in Flux is based on the virtual works method; it assumes that the region on which the force is computed is surrounded by air.
In order to compute the magnetic force (normal and tangential components) on a region, one should follow the steps below:
| 1 | In menu Advanced click on Sensor -> New
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| 2 | Select the type Predefined (Energy, Force, Torque,..) and select the region
e.g. Magnet region in rotating machine. Note that the region is surrounded by air
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| 3 | Evaluate the sensor Note: you can create the sensor before the solving in order to evaluate it during the solving process
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| 4 | Display sensors curves
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| 5 | Export the curves and compute the normal and tangential components in Excel for instance (you can also ask an example to the support) Note: The normal and tangential components are computed using the rotation matrix:
Fr= Fx *Cos(θ) + Fy * Sin(θ)
F θ= -Fx *Sin(θ) + Fy * Cos(θ)
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