In the PreLoad model in the Mechanics library, a sinusoidal force acts on a spool of a certain mass. In order for the spool to move in either direction, this force has to cross a certain threshold value where it overcomes friction. The model also contains a spring that ensures the return of the spool into a neutral position if the force is removed.
This custom animation shows the interaction between the spool’s position and the applied force in an interactive environment with a 3D graphical depiction of the system itself. Manipulate the "Time" handle to see how the spool’s movement is affected by the force. Use the "Opacity" control to change the transparency of the outer red cylinders.