modelLoad
Mechanical load model
Extends from Modelica.Mechanics.Rotational.Interfaces.PartialOneFlangeAndSupport (Partial model for a component with one rotational 1-dim. shaft flange and a support used for graphical modeling, i.e., the model is build up by drag-and-drop from elementary components).
Information
Model of a speed dependent load torque. It is zero for time < startTime, i.e. it can be switched on at startTime producing a torque step. This physical model utilizes the block SpeedDependentTorque. Additionally the load's inertia is taken into account.
Speed dependency of torque can be choosen from:
- Unidirectional ... same direction of constant torque in both directions of rotation
- Constant ... constant torque with linear regularization around zero speed
- Linear ... linearly speed dependent torque
- Quadratic ... quadratic speed dependent torque
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | useSupport (from PartialOneFlangeAndSupport) | false | = true, if support flange enabled, otherwise implicitly grounded |
| DriveControl.Types.SpeedDependency | speedDependency | DriveControl.Types.SpeedDependency.Linear | Speed dependency of torque |
| Modelica.Units.SI.Torque | tauN | Nominal torque at nominal speed | |
| Modelica.Units.SI.AngularVelocity | wN | 1 | Nominal speed |
| Modelica.Units.SI.Time | startTime | 0 | Start time |
| Modelica.Units.SI.Inertia | JL | Moment of inertia | |
| Advanced | |||
| Modelica.Units.SI.AngularVelocity | w0 | 1e-3 | Minimum speed for regularization |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Flange_b | flange (from PartialOneFlangeAndSupport) | Flange of shaft | |
| Support | support (from PartialOneFlangeAndSupport) | Support/housing of component |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Blocks.SpeedDependentTorque | speedDependentTorque | ||
| Modelica.Mechanics.Rotational.Sources.Torque | torque | ||
| Modelica.Mechanics.Rotational.Sensors.RelSpeedSensor | relSpeedSensor | ||
| Modelica.Mechanics.Rotational.Components.Inertia | inertia |