A small eccentric motor vibrates on a floor supported by a single rod. Changing the voltage applied to motor the rpm frequency changes. Still why the frequency of whole system remains constant even if system is considered steady state response? I conducted an experiment and found the frequency remains constant for whatever voltage I choose for the motor. Shouldn't the forced frequency be equal to the frequency of oscillation of system. I also changed the rod dimensions but the frequency of system changed but remained constant for whatever voltage I used.

Similar questions and discussions