Using femm
- Thread starter Miles
- Start date
I'm not following... What's the difference between adjusting the wrong results as against adjusting the results of the wrong but known input?bearing said:
I'm only using FEMM to get a better view of the flux density variations on the actual geometry.
With a higher stacking factor, the reluctance will change, so the flux will choose other paths.
As an extreme example, let's say you had a 50% stacking factor. With the bad reluctance, the flux in the corners of two magnets might choose to just walk the shortest path through the air between the magnets. But then when you increase to 100% stacking factor, that flux will walk into a tooth and out another tooth instead. Also, the flux density in the air gap will increase with the changed reluctance.
Probably not very important for you, since the difference between 0.93 and 1 is small, and by the way you are using it.
As an extreme example, let's say you had a 50% stacking factor. With the bad reluctance, the flux in the corners of two magnets might choose to just walk the shortest path through the air between the magnets. But then when you increase to 100% stacking factor, that flux will walk into a tooth and out another tooth instead. Also, the flux density in the air gap will increase with the changed reluctance.
Probably not very important for you, since the difference between 0.93 and 1 is small, and by the way you are using it.
