Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 1 (Q.No. 9)
9.
The factor which affects the critical speed of a shaft is
Discussion:
22 comments Page 3 of 3.
Ganeshr said:
4 years ago
Given ans is correct.
Critical or whirling or whipping speed is the speed at which the shaft tends to vibrate violently in the transverse direction.
The critical speed essentially depends on;
1. The eccentricity of the C.G of the rotating masses from the axis of rotation of the shaft.
2. Diameter of the disc,
3. Span (length) of the shaft, and.
4. Type of supports connections at their ends.
Critical or whirling or whipping speed is the speed at which the shaft tends to vibrate violently in the transverse direction.
The critical speed essentially depends on;
1. The eccentricity of the C.G of the rotating masses from the axis of rotation of the shaft.
2. Diameter of the disc,
3. Span (length) of the shaft, and.
4. Type of supports connections at their ends.
(1)
Prathmesh said:
3 years ago
The answer is only mass and stiffness span and diameter of rotor not eccentricity.
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