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Modelling a mechanical rotational system with a friction element

In this example, the modelling of a mechanical rotating system with a friction element will be demonstrated. Inertia is coupled to the support by means of a spring and a damper. It is driven by a velocity source through a friction element. It, in turn, has a difference between detachment and Coulomb friction, resulting in discontinuous motion.

Schematic of the model:

mechanical_rotational_system_with_stick_slip_motion--1719332555007.png

Simulation results:

Angular displacement of the velocity source (in red) and inertia source (in blue):

newplot_16.png

The angular velocity of the source:

newplot_17.png

Blocks used in example