Free vibration of simply supported beam
A rod 20 mm diameters and 1.2 m long is simply supported at both end and has a mass of 2kg concentrated at the middle. Ignoring the weight of the rod, calculate the frequency of transverse vibrations. Take E=200 Gpa.?
What is the value of logarithmic decrement if amplitude drops by 2 times between consecutive peaks ?
The amplitude of a damped system will not change with time.
For an under damped system
The magnification factor is the ratio of maximum amplitude and static deflection.