Pully system in simulink

I am really struggling to create this system in simulink. I know it is fairly simple, but I just started using simulink this week, and I do not understand everything needed for this yet. Can anyone help out/show me how it's done?

Answer 1

[Karan Singh]

Hi @Benjamin Robbins,

From the image you have provided, here is the short list of basic Simulink blocks you need to model a simple pulley/mass/spring system in a “classical” block‐diagram approach, rather than Simscape:

• Sine wave Block to generate the external force. https://in.mathworks.com/help/simulink/slref/sinewave.html
• Sum/ Add block to sum forces/ torques. https://in.mathworks.com/help/simulink/slref/sum.html
• Gain Block to multiply by constants. https://in.mathworks.com/help/simulink/slref/gain.html
• Integrator Bock. You need two integrators in series per second‐order equation: The first integrator to go from acceleration to velocity. The second integrator to go from velocity to displacement. https://in.mathworks.com/help/simulink/slref/integrator.html
• Scope Block to visualize displacement, velocity, or any other signals you care about. https://in.mathworks.com/help/simulink/slref/scope.html

Karan

[Sam Chak]

Hi @Karan Singh

Based on what you have suggested, could you describe how to use certain Simulink blocks to model both the small pulley and the large pulley, as well as the connection between them, without knowing the differential equations (as not shown in the image)?