- #1
WarpedWatch
- 38
- 0
Greetings,
I've been trying to teach myself about magnetic phenomena and I've recently been tinkering with a finite element package called quickfield (from quickfield.com).
I made a model of a simple permanent magnet with one of the magnet's poles facing a steel bar. The software has a method that allows me to click on the steel bar and calculate the force that the steel bar is experiencing. The map of the resulting B field seems to make sense to me but the resulting forces have me puzzled. For example, if the steel bar is pressed directly against the pole of the magnet, the software shows that the steel is experiencing a force that is less than if the steel bar is slightly removed from the surface of the magnet. Should this be the case? In real life, does having the steel pulled slightly away from the magnet actually cause the steel to experience greater pull than if the steel were in direct contact with the magnet's pole? Or might this be some oddball artifact of the software or my model?
Many thanks for your insights here. :-)
I've been trying to teach myself about magnetic phenomena and I've recently been tinkering with a finite element package called quickfield (from quickfield.com).
I made a model of a simple permanent magnet with one of the magnet's poles facing a steel bar. The software has a method that allows me to click on the steel bar and calculate the force that the steel bar is experiencing. The map of the resulting B field seems to make sense to me but the resulting forces have me puzzled. For example, if the steel bar is pressed directly against the pole of the magnet, the software shows that the steel is experiencing a force that is less than if the steel bar is slightly removed from the surface of the magnet. Should this be the case? In real life, does having the steel pulled slightly away from the magnet actually cause the steel to experience greater pull than if the steel were in direct contact with the magnet's pole? Or might this be some oddball artifact of the software or my model?
Many thanks for your insights here. :-)