Hey there.
Up front: I've not done physics calculations beyond school stuff, so pointers to what to get acquainted with in the first place are also welcome ;)
Bear in mind I may use weird terminology (also because English is not my first language)
Now the actual question:
- springs *not* used to be expanded or compressed, but rather to couple 2 axles (correct word for longish cylinders within bearings allowing them to rotate?)
- The motor also has a flywheel attached
- The 2nd axle has a disc weight on it, rather small compared to the motor's flywheel
And if we then make the system more complicated by introducing
- Also, the disc weight is now on the 4th axle, not the 2nd.
How does the 4th axle behave, pertaining to rotation angle over time? As may be obvious, the flywheel and springs are there to dampen any unevenness in rotation at the target axle. But it's probably not doing so perfectly, and I'm interested in the remaining unsteadiness.
At least in my funny mind, the springs and flywheel are sort of an equivalent to low pass filters, which dampen the pulses coming out of the motor, but then perhaps there's also some sort of ringing going on or other effects, at least not 100% of the higher frequency content removed by the "filters".