Nonlinear equations of motion of ship having three degrees of freedom of heave, pitch and roll are investigated; it is shown that unstable motion may occur in any one degree through excitation by one of other two; instabilities occur when natural frequency in unstable motion is nearly one half of that of exciting motion, or when these natural frequencies are nearly equal.
On unstable ship motions resulting from nonlinear coupling
J Ship Research
Journal of Ship Research ; 3 , n 1
1959
11 pages
Aufsatz (Zeitschrift)
Englisch
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