Spherical joint moves like spring

Omniverse Isaac Sim
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4

To answer a question on accuracy of the simulated rope from here: How can i simulate rope for antisway crane simulation
You have multiple knobs you can tune here:

  1. Number of rope segments
  2. Segment weight or inertia
  3. Joint damping

It may be a matter of tuning those to get to the most realistic representation in your case.