Question

The Factor which Affects the Critical Speed of a Shaft
The factor which affects the critical speed of a shaft is? 1) Diameter of the disc 2) Span of the shaft 3) Eccentricity 4) All of these

Answer 1

The option (4) All of these, is the correct answer. .......

Answer 2

The factors which affects critical speed of shaft is:

4. All of these.

• A shaft is placed on a rotor with axis that causes it to spin and maximum speed is attained when its speed overlaps with fixed  frequency of the system.
• Thus, the make of the shaft is very necessary to decide the speed and other characteristics.
• Therfore, the diameter of the shaft is very important as it helps to set the size of the disc.
• The span of the shaft is another important line of gauging.
• The eccentricity of the material and the shaft is a constant that is also responsible to affect the critical speed of the shaft.