Linear Magnetic Gear
Application ID: 35711
In this model, a linear magnetic gear system with a gear ratio of 11:4 is modeled. The liner magnetic gear is assumed to be infinitely long with the modular structure that is repeating on either side. Only a single modular section is modeled by using the customized linear periodic boundary condition.
Both the low speed and the high speed armatures (rotors) consist of permanent magnets and back iron. The low speed armature consists of 11 pole-pairs, while the high speed armature consists of four pole-pairs, and the stationary steel consists of 15 pole-pairs.
The Magnetic Fields and the Moving Mesh interfaces are used to evaluate the electromagnetic force in moving armatures. Due to the symmetry in azimuthal direction, the model is solved in 2D axisymmetry.
This model example illustrates applications of this type that would nominally be built using the following products:
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.