modelMassFriction
Constant force with linear range around zero speed
Extends from ElectroMechanicalDrives.BaseClasses.MassFriction (Partial model with mass, inclination and friction).
Information
In this model considers the inertial mass m including the following effects:
- Inclination or declination, being constant (
useConstantAngle = true) or time dependent (useConstantAngle = false) - Rolling friction
force determined by friction coefficient
mu
This model is extended by vehicle models which also consider athmospheric friction and optional electric drives.
Note
Do not change v_linear except this is required for numerical reasons
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Boolean | useSupport (from PartialElementaryTwoFlangesAndSupport2) | false | = true, if support flange enabled, otherwise implicitly grounded |
| Boolean | useConstantAngle (from ConditionalAngle) | true | If false, signal input is used |
| Modelica.Units.SI.Angle | constantAngle (from ConditionalAngle) | 0 | Constant angle of gradient |
| Modelica.Units.SI.Mass | m (from MassFriction) | Mass of the sliding mass | |
| Real | mu (from MassFriction) | 0 | Friction coefficient |
| Boolean | useHeatPort (from PartialElementaryConditionalHeatPortWithoutT) | false | = true, if heatPort is enabled |
| Tuning | |||
| Modelica.Units.SI.Velocity | v_linear (from MassFriction) | 0.01 | Speed limit of constant rolling friction (do not change unless required) |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Flange_a | flange_a (from PartialTwoFlanges) | (left) driving flange (flange axis directed into cut plane, e. g. from left to right) | |
| Flange_b | flange_b (from PartialTwoFlanges) | (right) driven flange (flange axis directed out of cut plane) | |
| Support | support (from PartialElementaryTwoFlangesAndSupport2) | Support/housing of component | |
| Modelica.Blocks.Interfaces.RealInput | variableAngle (from ConditionalAngle) | Angle of inclination of ramp | |
| HeatTransfer.Interfaces.HeatPort_a | heatPort (from PartialElementaryConditionalHeatPortWithoutT) | Optional port to which dissipated losses are transported in form of heat |