Mechanical sets
Moving parts and type of motion
To describe motion, first we must define:
-
the moving parts: the fixed parts, the moving parts and the “the areas in which the moving part is moving”
-
the motion type: rotation around an axis, translation along a line
Moving parts
To describe motion in the finite element domain, the regions are assigned to mechanical sets.
As volumes are assigned to regions with the same physical characteristics, regions are assigned to mechanical sets with the same displacement or kinematic characteristics.
Mechanical set: definition
A mechanical set is a set of regions and coils that have the same displacement characteristics: fixed, moving or compressible.
|
A mechanical set of … |
includes the regions corresponding to… |
|---|---|
| fixed type | fixed parts |
| moving type | moving parts |
| compressible type | the area of air in which the moving part is moving |
Note: Non-meshed coils must belong either to the fixed mechanical set or to the moving
mechanical set, but never to the compressible mechanical set.
Motion type
Flux models the following types of motion:
- translation along an axis
- X, Y or Z axis in 3D
- Y axis in 2D
- rotation around an axis
- X, Y or Z axis in 3D
- X axis in 2D