Prescribed Rotation
Motion driver that converts input signals into sequential rotational motion
Description
Connections
Parameters
See Also
A prescribed rotational motion driver is identical to a Spherical joint, except that the joint rotations are prescribed by input signals, rather than being free to vary. The driver assumes that the inputs are C1 continous (i.e. continuous through to angular velocity).
Name
framea
Joint inboard frame
frameb
Joint outboard frame
PRInputA
Real, C1 continuous signal input specifying the rotation about the axis specified by the A−axis parameter
PRInputB
Real, C1 continuous signal input specifying the rotation about the axis specified by the B−axis parameter
PRInputC
Real, C1 continuous signal input specifying the rotation about the axis specified by the C−axis parameter
Symbol
Default
Units
Modelica ID
A−axis
1,0,0
Axis about which rotation A is applied, expressed in inboard frame.
RotA
B−axis
0,1,0
Axis about which rotation B is applied, expressed in frame resulting from A rotation.
RotB
C−axis
0,0,1
Axis about which rotation C is applied, expressed in frame resulting from B rotation.
RotC
Joints and Motions
Spherical
Multibody Overview
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