WOLFRAM SYSTEM MODELER
    KinematicLoopAn example of a kinematic loop (manual state selection)  | 
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SystemModel["PlanarMechanics.Examples.KinematicLoop"]

In this version, the states are manually selected.
Selected continuous time states
| revolute1 | 
         Type: Revolute Description: A revolute joint  | 
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| revolute3 | 
         Type: Revolute Description: A revolute joint  | 
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| revolute2 | 
         Type: Revolute Description: A revolute joint  | 
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| revolute4 | 
         Type: Revolute Description: A revolute joint  | 
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| prismatic1 | 
         Type: Prismatic Description: A prismatic joint  | 
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| springDamper1D | 
         Type: SpringDamper Description: Linear 1D translational spring and damper in parallel  | 
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| body | 
         Type: Body Description: Body component with mass and inertia  | 
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| fixedTranslation1 | 
         Type: FixedTranslation Description: A fixed translation between two components (rigid rod)  | 
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| fixedTranslation2 | 
         Type: FixedTranslation Description: A fixed translation between two components (rigid rod)  | 
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| fixedTranslation3 | 
         Type: FixedTranslation Description: A fixed translation between two components (rigid rod)  | 
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| fixed | 
         Type: Fixed Description: Frame fixed in the planar world frame at a given position and orientation  | 
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| fixed1D | 
         Type: Fixed Description: Fixed flange  | 
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| planarWorld | 
         Type: PlanarWorld Description: Planar world coordinate system + gravity field + default animation definition  | 
    
Developed 2010 at the DLR Institute of System Dynamics and Control