+1 vote
in Machine Dynamics by (34.3k points)
Maximum couple during pitching is given by : (ω: angular velocity of rotor & ωpmax: Maximum angular velocity of precession).

(a) Cmax = I.(ωpmax)^2

(b) Cmax = I.(ω)^2

(c) Cmax = I. ω. ωpmax

(d) Cmax = I^2. ω. ωpmax

The question was posed to me by my school principal while I was bunking the class.

This key question is from Effect of Gyroscopic Couple on a Navalship during Pitching & Rolling in division Gyroscopic Couple and Precessional Motion of Machine Dynamics

1 Answer

0 votes
by (38.6k points)
Right option is (c) Cmax = I. ω. ωpmax

Explanation: Maximum couple depends on both angular velocity of rotor and angular velocity of precession, therefore it is maximum when ωp is maximum.

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