Introduction (8.1). SEAKEEPING. Seaworthiness defines the operational limits of our vessels!. USCG 47’ MLB. Introduction (8.1). SEAKEEPING. The ship is a system excited by external moments and forces. Excitations (inputs) are primarily wind and waves.
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The damage included bending the foremast 20 degrees and busting windows on the bridge 40 ft abv the deck! Taken off South Carolina in 1998.
Forces that make waves:
Wind Generated Wave SystemsFactors for Wave Size (8.2)
The Simplified Wave Equation for coastal waters!
This won’t be on the exam!
The next step is understanding the ship motions...
w=input freq. (Vs=0)
(if Vs>0) then w= we
What happens if B is increased?
T stays about the same! Huh?