Mechanical set: definition (structure)
Mechanical set: definition
A mechanical set is defined by:
- a name (and a comment)
- a type of mechanical set
and for the mechanical sets of rotation around one axis and translation along one axis :
- an axis of rotation or translation
- a type of kinematics (= computation mode)
- kinematic characteristics:
- general characteristics
- internal characteristics
- external characteristics
- mechanical stops
Types of mechanical set
Different types of mechanical sets are presented in the table below.
| Type | enables the regrouping of the regions corresponding to … |
|---|---|
| fixed | the motionless parts |
| compressible |
the zone of air in which the moving part is in motion |
| rotation around one axis |
the moving parts in rotation around an axis |
| translation along one axis |
the moving parts in translation along an axis |
| free movement | The free motion is designed to take into account complex motions (excluding translation and rotation movement). This motion is described by a list of positions for the mobile part |
| six degrees of freedom | In space, using an orthonormal coordinate system (O,x,y,z), the 6
degrees of freedom are defined as follows:
|
Types of kinematics
Different types of kinematics (= computation mode) are presented in the table below.
| Kinematics (= computation mode) … | |
|---|---|
| of type … | enables the realization of a computation … |
| Multi static |
of multi-position type in Magneto Static application ( |
| Imposed speed | at imposed speed in Transient Magnetic application |
| Imposed position | at imposed position in Transient Magnetic application |
| Coupled load |
with magneto-mechanical coupling in Transient Magnetic application |
| Multiphysics | to be able to coupling the motion with another software (like Activate) |
parametrized study in Magneto Static application)General characteristics
General characteristics gather following information:
- initial conditions (initial speed and initial position)
Internal characteristics
Internal characteristics gather following information:
- kinematic characteristics relating to the moving part (proper characteristics) (see table below)
| Motion | Characteristics relating to the moving part | |
|---|---|---|
| rotating | moment of inertia |
resistant torque (formula or 3 coefficients) |
| translating | mass |
resistant torque (formula or 3 coefficients) |
External characteristics
External characteristics gather following information:
-
kinematic characteristics relating to the coupled load (external device)
(see table below)
| Motion | Characteristics relating to the coupled load | |
|---|---|---|
| rotating | moment of inertia |
resistant torque (formula or 3 coefficients) |
| translating | mass |
resistant force (formula or 3 coefficients) |
Mechanical stops
The various mechanical stops are following:
- minimal stop
- maximal stop