modelCoupling
Extends from Modelica.Mechanics.Rotational.Interfaces.PartialTwoFlanges (Partial model for a component with two rotational 1-dim. shaft flanges).
Information
This is a model of an ideal stiff coupling:
One device connected to the coupling is turning clockwise (looking at the shaft end),
the other device connected to the coupling is turning counter-clockwise (looking at the shaft end).
The torque at flange_b has the same magnitude as the torque at flange_a but opposite sign.
This is achieved by using an
ideal gear with ratio = -1.
Variable w represents the angular velocity of flange_a
and tau represents the torque transferred from flange_a to flange_b.
This behaviour is essential when coupling electric machines. The usage is demonstrated in the example Modelica.Electrical.Machines.Examples.DCMachines.DCPM_Drive.
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Flange_a | flange_a (from PartialTwoFlanges) | Flange of left shaft | |
| Flange_b | flange_b (from PartialTwoFlanges) | Flange of right shaft |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.AngularVelocity | w | der(flange_a.phi) | Angular velocity of flange_a |
| Modelica.Units.SI.Torque | tau | flange_a.tau | Torque of flange_a and flange_b |
| Mechanics.Rotational.Components.IdealGear | idealGear |