Anyone? I'm sure the answer is simple, I just wanted to reaffirm that what I am assuming is correct. Thanks a bunch.
Fixed hinge is a correct approach for your simulation purpose. On another note, using pin connectors also gives you more options for specifying axial and rotational stiffness as well as defining mass of the pin and including it into the simulation.
Hope it helps.
You are correct in this. The Fixed Hinge stops X/Y/Z translations in the global coordinate system while allowing it to continue to freely rotate. A pin is a similar idea but it locks two cylindrical faces together so they must translate. They also can still rotate around the axis but must maintain alignment on their common axis as they move around your work space.
For a 4-bar linkage pins would be the way to go to get all the bars linked together. You don't necessarily need No Penetration contacts as the definition of the pin can keep the holes aligned as well as maintain the axial spacing of the holes. So, if you are looking for a quick analysis setup you could avoid the slowness that comes from No Penetration contacts by using the "With reaining ring" option in the pin definition.