Parmec spherical joint¶
Torsion spring has now been added to PARMEC, allowing to model angular hinges with rotational limits and spherical joints. TORSION_SPRING command is used to define an angle–torque relationship for three angles of rotation about user specified local coordinate axes (x–roll, y–pitch, z–yaw). The command includes a cone constraint which allows to model spherical joints in roll-pitch, roll-yaw, and pitch-yaw planes. Example application application of this functionality is included as tests/spherical_joint.py. A ParaView animation generated by this test is included below. (…)