Accession Number : ADA297398

Title :   Damage Stability Issues for the Advanced Double Hull (ADH) Project.

Descriptive Note : Final rept. Nov 93-Oct 94,

Corporate Author : NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD HYDROMECHANICS DIRECT ORATE

Personal Author(s) : Kopp, Paul J.

PDF Url : ADA297398

Report Date : NOV 1994

Pagination or Media Count : 108

Abstract : The U.S. Navy is currently investigating the concept of an advanced, unidirectionally framed, double hull surface combatant ship design. This report documents the results of an investigation into the damage stability issues involved. Comparisons have made between a conventional monohull surface combatant and the vessel modified with double hull compartments. Double hull configurations internal and external to the original hull shell using three foot and six foot spacings were considered. Several watertight compartmentation geometries within the double hull spaces were also investigated. The Ship Hull Characteristics Program (SHCP), version 4.11 was used for intact and damaged stability calculations. Damage conditions evaluated were specified by Navy Design Data Sheet (DDS) 079-1 dated 1 August 1975, for the stability and buoyancy requirements for U.S. naval surface ships. The stability criteria as specified in DDS 079-1 were applied and evaluated for the double hull CG 47 computer models. Additional damage conditions and stability criteria evaluated were taken from the U.S. Coast Guard standards adopted for double hull oil tankers. It is concluded that the double hull concept does have an adverse effect on damage stability and that the existing Navy stability criteria is adequate for double hull combatants. (KAR) P. 3

Descriptors :   *STABILITY, *DAMAGE ASSESSMENT, *SHIP HULLS, REQUIREMENTS, DAMAGE, OCEAN SURFACE, NAVY, SURFACES, ADVERSE CONDITIONS, STANDARDS, NAVAL VESSELS(COMBATANT), BUOYANCY, COAST GUARD, FEET.

Subject Categories : Marine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE