Applied Naval Architecture by Robert B Zubaly

Author:Robert B Zubaly [Zubaly, Robert B]
Language: eng
Format: epub, pdf
Tags: Engineering
Publisher: Schiffer Publishing
Published: 2009-06-30T07:00:00+00:00

where subscript O means “about its own centroidal axis.”

Therefore

The trim change is

Trimming the barge about center of flotation F′, we have

and the drafts forward and aft are

Damaged Stability. The metacentric height in the damaged condition is given by

where the subscript 2 refers to the final trimmed condition after flooding.

The KB increases in two stages when flooding occurs—an increase due to parallel sinkage, illustrated in Figure 6-6, and a further increase due to the change in trim, illustrated in Figure 6-7. The first of these increases is determined by equating the vertical shifting moment of the total buoyant volume to that of the lost buoyant volume. Referring to Figure 6-6, it is clear that

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