Several adjustments are possible so that the mesh can be customized. Full motor model, partial motor models with a single pole, or a minimum of a pole pair can be defined. The mesh density in different regions of the mesh can also be specified along with the number of user defined points on the boundary of each object. The number of layers in the air gap can be specified. The reusable mesh feature for multiple rotor positions is implemented fully only for the full motor model at this time. All mesh customization features can be set in the 'Mesh properties' property pages in the 'Mesh' menu. Examples using the full motor and partial motor models are shown below. |
Full Motor Model
The full motor model is used when the entire motor is to be meshed. Checking of any available symmetry in the motor is bypassed with this setting. Even if partial motor model is selected and there is no symmetry in the motor, Samarium automatically defaults to the full motor model. An example is a 9 slot stator with 8 poles.
Full motor is meshed. (9 slot, 8 pole motor) |
Airgap layer. One layer has been used. |
Partial Motor Model
For a 12 slot motor with 4 poles and a standard winding, the motor has symmetry over each pole or over three slots. Here the partial motor model can be successfully implemented. A single pole can be modeled or a pole pair can be chosen as well. The images below show the rotor at 35 mechanical degrees from 0. The appropriate boundary conditions are automatically applied.
Partial motor model. (12 slot, 4 pole motor) |
Partial motor model with a pole pair. (12 slot, 4 pole motor) |
