Critical Speed of a Rotating Shaft - Dunkerley's method
In solid mechanics, in the field of rotordynamics, the critical speed is the theoretical angular velocity that excites the natural frequency of a rotating object, such as a shaft, propeller, leadscrew, or gear.
Dunkerley’s method is used in mechanical engineering to determine the critical speed of a shaft-rotor system.Related formulas
|critical speed(r.p.m.) (1/s)
|young's modulus (pascal)
|Second moment of area (m4)
|mass of the shaft (kg)
|length of the shaft between points (m)