On the measurement of added mass and added moment of inertia for ship motions:Part 3. Added mass for the transverse motions
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概要
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The Author describes in this paper the results of measurement of added mass for the transverse motions.<BR>The Author employed an "athwartship accerelating method" which is grounded on the fact that, when a slender body like a ship is accerelated by a force making an angle a to the center plane of he ship, the direction of accerelation does not coinside to that of the force, and let the angle of accerelation to the center plane β, there is a relation as follows ;<BR>tanα/tanβ=<I>m</I>+<I>m</I><SUB><I>y1</I></SUB>/<I>m</I>+<I>m</I><SUB><I>x1</I></SUB><BR>The results obtained by this method were satisfactory ones. It was found that <I>m</I><SUB><I>y1</I></SUB>/<I>m</I> decreases when CI, value of a ship increases, that <I>m</I><SUB><I>y1</I></SUB>/<I>m</I> increases when a ship becomes more slender.
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