hesslemans
Mechanical
- Apr 26, 2013
- 1
Hi folks, long time lurker on here. Needing a bit of help calculating the torque and attraction force of an axial permanent magnetic coupling in Abaqus. I understand that there are more suitable softwares for this, but I'm working on a budget and only have access to Abaqus CAE.
I am trying to model a coupling which uses 6 magnets per disk, arranged in N-S-N. The magnets themselves are bonded neodymium with a magnetic permeability of 1.05 and a Br of 0.4T. They are 10mm in diameter and thickness. I have modelled them as two disks of 6 sections. The gap between the disks is 5mm.
I modelled it in Abaqus as a Standard/Explicit model and a Dynamic/Implicit step. The disks are bound to allow no translation, only rotation. I have tried to create the magnetic force using both face and body magnetic forces, but it aborts with errors. I am having troubles getting the program to complete jobs, as it is my first time using the program with magnetic forces. I think the problem lies either with the material properties being incorrect (it asks for piezoelectric properties, which I don't have to hand), or the forces being used incorrectly, but I am not sure.
Pic for example is below:
Link
I understand that there are other pieces of software which would do the job far easier, such as ANSYS Maxwell, but I don't have access at work. Any help would be great.
I am trying to model a coupling which uses 6 magnets per disk, arranged in N-S-N. The magnets themselves are bonded neodymium with a magnetic permeability of 1.05 and a Br of 0.4T. They are 10mm in diameter and thickness. I have modelled them as two disks of 6 sections. The gap between the disks is 5mm.
I modelled it in Abaqus as a Standard/Explicit model and a Dynamic/Implicit step. The disks are bound to allow no translation, only rotation. I have tried to create the magnetic force using both face and body magnetic forces, but it aborts with errors. I am having troubles getting the program to complete jobs, as it is my first time using the program with magnetic forces. I think the problem lies either with the material properties being incorrect (it asks for piezoelectric properties, which I don't have to hand), or the forces being used incorrectly, but I am not sure.
Pic for example is below:
Link
I understand that there are other pieces of software which would do the job far easier, such as ANSYS Maxwell, but I don't have access at work. Any help would be great.