Velocity sensor

Absolute velocity of the flange.

  • signal
  • translational
  • Modelica Standard Library
  • 2 ports
BlockVelocity sensorKindvelocitySensorLibraryTranslational

Description

Measures the absolute velocity of the flange without loading it.

Example

Mass, spring, and damper Two 1 kg masses on 100 N/m springs and 2 N·s/m dampers, pushed by 1 N, with every translational sensor.

Force step 1 NApplied forceMass 1 kgSpring-damperWallPositionVelocityAccelerationForce 1 NMass 1 kg (lower)Spring 100 N/mDamper 2 N·s/mWall (lower)Spring compressionPosition (lower)
In Gradara, select a Velocity sensor block and press F1, then choose Open example. It opens as a new model in My models, ready to run.

Also in this example:Fixed (translational)MassSpringDamperSpring-damperConstant forceForce stepPosition sensorAcceleration sensor (linear)Force sensorRelative position sensor

Ports

Outputs 1

  • vsignal · m/s

    Velocity, in m/s.

Conserving terminals 1

  • shaftflangetranslational

    Measured flange. No force is exchanged.

Equations

Modelica
v = d(flange.s)/dt
flange.f = 0

Implementation

Modelica Standard Library 4.1.0Modelica.Mechanics.Translational.Sensors.SpeedSensor
MSL documentation

Used in

These larger examples use it too. Open them from Examples in the app.

  • EV drivetrain

See also

Select a block in Gradara and press F1 to open its page offline.