What is meant by critical speed of a shaft which are the factors affecting it?
In solid mechanics, in the field of rotor-dynamics, 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. The factor which affects the critical speed of a shaft is diameter of the disc, span of the shaft, and eccentricity.
How to Calculate Critical or Whirling Speed given Static Deflection?
Critical or Whirling Speed given Static Deflection calculator uses Critical or Whirling Speed = sqrt(Acceleration due to Gravity/Static Deflection of Shaft) to calculate the Critical or Whirling Speed, The Critical or Whirling Speed given Static Deflection formula is defined as the speed at which unwanted vibration happens when shaft is rotating. Critical or Whirling Speed is denoted by ωc symbol.
How to calculate Critical or Whirling Speed given Static Deflection using this online calculator? To use this online calculator for Critical or Whirling Speed given Static Deflection, enter Acceleration due to Gravity (g) & Static Deflection of Shaft (δ) and hit the calculate button. Here is how the Critical or Whirling Speed given Static Deflection calculation can be explained with given input values -> 121.8544 = sqrt(9.8/0.00066).