WOLFRAM SYSTEMMODELER

EddyCurrentForce

Simple model of a translational eddy current brake

Wolfram Language

In[1]:=
SystemModel["Modelica.Mechanics.Translational.Sources.EddyCurrentForce"]
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Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

This is a simple model of a translational eddy current brake. The force versus speed characteristic is defined by Kloss' equation.

Thermal behaviour:
The resistance of the braking fin is influenced by the actual temperature Theatport, which in turn shifts the speed v_nominal at which the (unchanged) maximum torque occurs.
If the heatPort is not used (useHeatPort = false), the operational temperature remains at the given temperature T.
However, the speed v_nominal at which the maximum torque occurs is adapted from reference temperature TRef to the operational temperature.

Parameters (7)

useSupport

Value: false

Type: Boolean

Description: = true, if support flange enabled, otherwise implicitly grounded

useHeatPort

Value: false

Type: Boolean

Description: =true, if heatPort is enabled

T

Value: 293.15

Type: Temperature (K)

Description: Fixed device temperature if useHeatPort = false

f_nominal

Value:

Type: Force (N)

Description: Maximum force (always braking)

v_nominal

Value:

Type: Velocity (m/s)

Description: Nominal speed (leads to maximum force) at reference temperature

TRef

Value:

Type: Temperature (K)

Description: Reference temperature

alpha20

Value:

Type: LinearTemperatureCoefficient20 (ยน/K)

Description: Temperature coefficient of material

Connectors (3)

flange

Type: Flange_b

Description: Flange of component

support

Type: Support

Description: Support/housing of component

heatPort

Type: HeatPort_a

Description: Optional port to which dissipated losses are transported in form of heat

Used in Examples (1)

EddyCurrentBrake

Modelica.Mechanics.Translational.Examples

Demonstrate the usage of the translational eddy current brake