WOLFRAM SYSTEM MODELER
    GearConstraintIdeal 3-dim. gearbox (arbitrary shaft directions)  | 
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SystemModel["Modelica.Mechanics.MultiBody.Joints.GearConstraint"]

This information is part of the Modelica Standard Library maintained by the Modelica Association.
This ideal massless joint provides a gear constraint between
frames frame_a and frame_b. The axes of rotation
of frame_a and frame_b may be arbitrary.
Reference
Schweiger, Christian ;
Otter, Martin:
Modelling
3D Mechanical Effects of 1-dim. Powertrains. In: Proceedings of the 3rd International
Modelica Conference. Linköping : The Modelica Association and Linköping University,
November 3-4, 2003, pp. 149-158
| ratio | 
         Value: Type: Real Description: Gear speed ratio  | 
    
|---|---|
| n_a | 
         Value: {1, 0, 0} Type: Axis Description: Axis of rotation of shaft a (same coordinates in frame_a, frame_b, bearing)  | 
    
| n_b | 
         Value: {1, 0, 0} Type: Axis Description: Axis of rotation of shaft b (same coordinates in frame_a, frame_b, bearing)  | 
    
| r_a | 
         Value: {0, 0, 0} Type: Position[3] (m) Description: Vector from frame bearing to frame_a resolved in bearing  | 
    
| r_b | 
         Value: {0, 0, 0} Type: Position[3] (m) Description: Vector from frame bearing to frame_b resolved in bearing  | 
    
| stateSelect | 
         Value: StateSelect.default Type: StateSelect Description: Priority to use joint coordinates (phi_a, phi_b, w_a, w_b) as states  | 
    
| checkTotalPower | 
         Value: false Type: Boolean Description: = true, if total power flowing into this component shall be determined (must be zero)  | 
    
| world | 
         Type: World Description: World coordinate system + gravity field + default animation definition  | 
    |
|---|---|---|
| actuatedRevolute_a | 
         Type: Revolute Description: Revolute joint (1 rotational degree-of-freedom, 2 potential states, optional axis flange)  | 
    |
| actuatedRevolute_b | 
         Type: Revolute Description: Revolute joint (1 rotational degree-of-freedom, 2 potential states, optional axis flange)  | 
    |
| idealGear | 
         Type: IdealGear Description: Ideal gear without inertia  | 
    |
| fixedTranslation1 | 
         Type: FixedTranslation Description: Fixed translation of frame_b with respect to frame_a  | 
    |
| fixedTranslation2 | 
         Type: FixedTranslation Description: Fixed translation of frame_b with respect to frame_a  | 
    
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         Modelica.Mechanics.MultiBody.Examples.Rotational3DEffects Demonstrate usage of GearConstraint model  |