Mechanical Engineering - Theory of machines - Discussion
Discussion Forum : Theory of machines - Section 5 (Q.No. 32)
32.
A slender shaft supported on two bearings at its ends carries a disc with an eccentricity e from the axis of rotation. The critical speed of the shaft is Nc. If the disc is replaced by a second one of same mass but mounted with an eccentricily 2 e, then the critical speed of the shaft in the second case is
Discussion:
12 comments Page 2 of 2.
Anurag said:
9 years ago
But deflection directly proportional to eccentricity i.e. Y = e/(wn/w) - 1. And hence the answer is correct.
Gate topper said:
10 years ago
It I think critical speed does not depend on eccentricity.
Because is equal to sqrt(K/m) or sqrt(g/deflection).
Because is equal to sqrt(K/m) or sqrt(g/deflection).
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