Package mbdyn :: Package elts :: Module joint :: Class Coincidence

Class Coincidence

A joint that makes two nodes clamped to each other. This joints does not exist in MBDyn but is based on the Python interface.

This joint combines of a SphericalHinge and Prismatic. The SphericalHinge constraints the motion of the two joints but allow rotations. The Prismatic however constraints the orientation matrix of the two nodes, both have to stay the same which suppress the rotation. Example making two nodes clamped:

   ref = ReferenceFrame()
   ref.set_position(10., 0., 0.)
   
   node1 = StructuralNode()
   node2 = StructuralNode()
   node2.set_relative_from(ref)

   joint = Coincidence()
   joint.set_relative_from(ref)
   joint.set_node1(node1)
   joint.set_node2(node2)

Both joints can be accessed by the attributes: spherical_hinge and prismatic.

Instance Methods

[hide private]

__init__(self, name=None)

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set_default(self)
Set the default for the two joints

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set_relative_from(self, ref)
Set the reference frame for the two joints

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set_node1(self, node1)
Set the node 1 for the two joints

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set_node2(self, node2)
Set the node 2 for the two joints

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