Exam Question
Explain how the period of roll varies with
(a) The amplitude of roll (4)
(b) The radius of gyration (4)
(c) The initial metacentric height (4)
(d) The location of masses in the ship. (4)
Class 2 (2nd Engineer)
SC&S
📅 Nov 2024
Reference Answer
The period of roll Tr of a ship is determined by the formula:
$$T_{r}=\frac{2\pi K}{\sqrt{g\times GM}}$$
where,
K is the radius of gyration (mass moment of inertia)
$$T_{r}=\frac{2\pi K}{\sqrt{g\times GM}}$$
where,
K is the radius of gyration (mass moment of inertia)
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