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Mechanical Model Configuration Page

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Mechanical Model
NameSpecifies the name of the model.
DescriptionSpecifies a description for the model.
Configuration

SymbolUnitsDefaultDescription
Viscous DampingFvNewton*meter*second per radian0.00190986 Nm*s/radCombined viscous damping of the rotor and load, proportional to the angular velocity of the machine.
Static FrictionTfNewton-meter0.3665 NmStatic friction resisting initial rotation when the machine is at rest.
InertiaJKilogram-meter^20.0167309 Kg*m^2Moment of inertia of the rotor and load.

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Channel Name

Symbol

Type

Units

Default Value

Description

Mechanical Model Mode
Input

0

(Speed Controlled)

Set this channel to one of the following values:

  • 0 - Sets the mechanical model to Speed Controlled mode.  The mechanical parameters are ignored in this case.
  • 1 - Sets the mechanical model to Torque Controlled mode.

See the Mechanical Model Mode section for more information. 

User-Defined SpeedωuserInputRPM0 RPMForces the speed of the machine to the defined value.  This parameter is used in Speed Controlled mode, and ignored in Torque Controlled mode.
Load TorqueTLInputNm0 NmTorque applied to the shaft of the machine. This parameter is used in Torque Controlled mode, and ignored in Speed Controlled mode.
Mechanical AngleθmOutputDegrees0°

Mechanical rotor position.

Info

If this signal is routed to a Waveform Channel or an Analog Output Channel, its value is expressed in Turns.  The signal ranges in value from 0 to 1, with 1 representing a full rotation.


SpeedωmOutputRPM0 RPMRotation speed of the machine rotor in RPM.
Total TorqueTtotalOutputNm0 Nm

Mathinline
body--uriencoded--T_%7Btotal%7D = (T_%7Be1%7D + T_%7Be2%7D) - T_%7BL%7D - T_%7Bf%7D

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