WOLFRAM SYSTEM MODELER
CutForceMeasure cut force vector |
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Diagram
Wolfram Language
In[1]:=
SystemModel["PlanarMechanics.Sensors.CutForce"]
Out[1]:=
Information
The cut-force acting between the two frames to which this model
is connected, is determined and provided at the output signal
connector force (= frame_a.f).
If parameter positiveSign = false, the negative
cut-force is provided (= frame_b.f).
Via parameter resolveInFrame it is defined, in which frame
the force vector is resolved.
| resolveInFrame = … | Output vector resolved in |
|---|---|
| Types.ResolveInFrameAB.world | world frame |
| Types.ResolveInFrameAB.frame_a | frame_a |
| Types.ResolveInFrameAB.frame_b | frame_b |
| Types.ResolveInFrameAB.frame_resolve | frame_resolve (must be connected) |
If resolveInFrame = Types.ResolveInFrameAB.frame_resolve,
the conditional connector frame_resolve is enabled and
output force is resolved in the frame, to which
frame_resolve is connected.
Note, if this connector is enabled, it must be connected.
In the following figure the modeling and animation of this sensor is shown.
Parameters (3)
| resolveInFrame |
Value: Modelica.Mechanics.MultiBody.Types.ResolveInFrameA.frame_a Type: ResolveInFrameA Description: Frame in which output vector(s) is/are resolved (1: world, 2: frame_a, 3: frame_resolve) |
|---|---|
| animation |
Value: true Type: Boolean Description: = true, if animation shall be enabled (show arrow) |
| positiveSign |
Value: true Type: Boolean Description: = true, if force with positive sign is returned (= frame_a.f), otherwise with negative sign (= frame_b.f) |
Inputs (4)
| N_to_m |
Default Value: planarWorld.defaultN_to_m Type: Real (N/m) Description: Force arrow scaling (length = force/N_to_m) |
|---|---|
| forceDiameter |
Default Value: planarWorld.defaultArrowDiameter Type: Diameter (m) Description: Has no longer an effect and is only kept for backwards compatibility (arrow visualization by Vector now) |
| forceColor |
Default Value: Modelica.Mechanics.MultiBody.Types.Defaults.ForceColor Type: Color Description: Color of force arrow |
| specularCoefficient |
Default Value: planarWorld.defaultSpecularCoefficient Type: SpecularCoefficient Description: Reflection of ambient light (= 0: light is completely absorbed) |
Connectors (4)
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frame_a |
Type: Frame_a Description: Coordinate system a |
|---|---|---|
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frame_b |
Type: Frame_b Description: Coordinate system b |
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frame_resolve |
Type: Frame_resolve Description: Output vectors are optionally resolved in this frame (cut-force/-torque are set to zero) |
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force |
Type: RealOutput[2] Description: Cut force resolved in frame defined by resolveInFrame |
Components (4)
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planarWorld |
Type: PlanarWorld Description: Planar world coordinate system + gravity field + default animation definition |
|---|---|---|
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arrowForce |
Type: Vector Description: Visualizing a vector quantity (force, torque, etc.) |
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cutForce |
Type: BasicCutForce Description: Measure cut force vector (frame_resolve must be connected) |
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zeroPosition |
Type: ZeroPosition Description: Set zero position vector and orientation object of frame_resolve |
Used in Examples (1)
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PlanarMechanics.Examples A swinging pendulum excited by a world force |
Revisions
Developed 2010 at the DLR Institute of System Dynamics and Control