Welcome dear students
I have provided video for Single degree of freedom system subjected to torsional vibration .In this video .
Aim is to determine natural frequency of free torsional vibrations of Single degree of freedom system. And find its damping coefficient.
Go through article based on Balancing of rotating masses
https://drive.google.com/file/d/1F55nRIjBVmq3BCALVRLny4d5iD3vnb00/view?usp=drive_link