WOLFRAM SYSTEMMODELER
QuadraticSpeedDependantForceExternal force and torque acting at frame_b, defined by 3 input signals and resolved in world frame |
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Diagram
Wolfram Language
In[1]:=
SystemModel["PlanarMechanics.Sources.QuadraticSpeedDependantForce"]
Out[1]:=
Information
Model of a force quadratic dependant on the velocity of the flange. The force can be resolved in a world frame, or a relative speed can be used by selecting resolve_frame to use the extra frame_resolve.
This model is e.g. suitable to simulate aerodynamic drag forces.
Public Parameters (9)
| resolveInFrame |
Value: Modelica.Mechanics.MultiBody.Types.ResolveInFrameA.world Type: ResolveInFrameA Description: Frame in which output vector r_rel shall be resolved (1: world, 2: frame_a, 3: frame_resolve) |
|---|---|
| F_nominal |
Value: Type: Force (N) Description: Nominal torque (if negative, torque is acting as load) |
| v_nominal |
Value: Type: Velocity (m/s) Description: Nominal speed |
| tau_nominal |
Value: Type: Torque (N·m) Description: Nominal torque (if negative, torque is acting as load) |
| w_nominal |
Value: Type: AngularVelocity (rad/s) Description: Nominal speed |
| animation |
Value: true Type: Boolean Description: = true, if animation shall be enabled |
| N_to_m |
Value: planarWorld.defaultN_to_m Type: Real (N/m) Description: Force arrow scaling (length = force/N_to_m) |
| Nm_to_m |
Value: planarWorld.defaultNm_to_m Type: Real (N·m/m) Description: Torque arrow scaling (length = torque/Nm_to_m) |
| zPosition |
Value: planarWorld.defaultZPosition Type: Length (m) Description: z position of cylinder representing the fixed translation |
Inputs (3)
| diameter |
Default Value: planarWorld.defaultArrowDiameter Type: Diameter (m) Description: Diameter of force arrow |
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| color |
Default Value: PlanarMechanics.Types.Defaults.ForceColor Type: Color Description: Color of arrow |
| specularCoefficient |
Default Value: planarWorld.defaultSpecularCoefficient Type: SpecularCoefficient Description: Reflection of ambient light (= 0: light is completely absorbed) |
Connectors (2)
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frame_b |
Type: Frame_b Description: Coordinate system fixed to the component with one cut-force and cut-torque |
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frame_resolve |
Type: Frame_resolve Description: Coordinate system in which vector is optionally resolved, if useExtraFrame is true |
Components (6)
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planarWorld |
Type: PlanarWorld Description: planar world model |
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absoluteVelocity |
Type: AbsoluteVelocity |
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worldForce |
Type: WorldForce |
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normalizeSpeeds |
Type: MatrixGain |
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scaleForces |
Type: MatrixGain |
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square |
Type: SquaretimesSign |