Independent tank with curvature change section, and manufacturing method for independent tank

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United States of America Patent

PATENT NO 9868493
SERIAL NO

14785843

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Abstract

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Provided is an independent tank, and a manufacturing method therefor, for which local bending stress occurring on the vicinity of a boundary portion (welded portion) can be reduced without increasing plate thickness. An independent tank has at least one curvature change portion in which the curvature along the axial direction of plate members that form the tank changes along the axial direction. Both the inner peripheral surface and the outer peripheral surface of the plate member on the small curvature side are not flush with respect to the inner peripheral surface and the outer peripheral surface of the plate member on the large curvature side. The plate thickness center of the plate member on the small curvature side is offset toward the radial direction inner side or the radial direction outer side with respect to the plate thickness center of the plate on the large curvature side.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI SHIPBUILDING CO LTDJAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Miyazaki, Satoshi Tokyo, JP 155 2119
Ohtsuka, Hirotomo Tokyo, JP 1 9
Watanabe, Michihisa Tokyo, JP 3 9

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