Retrofittable monolithic box beam composite hull system

Details Retrofittable monolithic box beam composite hull system Retrofittable monolithic box beam composite hull system

1992-09-30

1995-01-10

Oberleitner, Robert J.

Ships

Building

Freighters

114342, 206592, 206594, B63B 2508

Patent

active

053797116

ABSTRACT:
A double hull structure includes a controllably crushable stand-off struce for maintaining a separation between inner and outer hulls and may be retrofit onto existing hulls either in modular and/or break-away sections or as a complete "shoe" enclosing the existing hull. This retrofittable hull is preferably of a non-metallic composite material which reduces or eliminates corrosion of the existing hull, extending the usable lifetime thereof. The controllably crushable stand-off structure is designed to provide sequential failure, preferably by sequential energy absorbing brittle fractures with little elastic deformation, to provide protection of the existing hull during collisions and/or groundings and thus enhance cargo containment. The brittle fracture is preferably provided by the use of non-metallic composite material in beams of the stand-off structure and/or the inclusion of syntactic foams.

REFERENCES:
patent: 2405590 (1946-08-01), Mason
patent: 3598275 (1971-08-01), Francois
patent: 3637051 (1972-01-01), Paine
patent: 4492291 (1985-01-01), Chometon
patent: 4548154 (1985-10-01), Murata
patent: 4674430 (1987-06-01), Murata
patent: 4744321 (1988-05-01), Pfeuffer
patent: 4901486 (1990-02-01), Kobori

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