Free Vibration and Damping of Rotating Composite Shaft with a Constrained Layer Damping

Table 1

Comparison of critical speed (rpm) for composite shaft.

Reference [1]; (theoretical)	Reference [1]; (experimental)	Reference [2]	Reference [3]	Reference [5]	Reference [6]	Reference [8]	Present; ()
5780	5500	4942	5762	5620	5555	5435	5619.6