This example demonstrates the functionality of constraint representing spherical joint. Each of two bodies is at one of its end connected by spring to the world. The other end is also connected to the world either by spherical joint or by appropriate constraint. Therefore, the body can only perform spherical movement depending on working forces.
Simulation results
After simulating the model, see the animation of the multibody
system and compare movement of body connected by joint (blue
colored) with movement of that one connected by constraint (of
green color). Additionally, the outputs from
sensorConstraintRelative
depict position deviations in
the constraining element.