Accession Number : ADA134858

Title :   Response Characteristics of a Systematic Series of 30,000 Ton Swath Configurations.

Descriptive Note : Final rept.,

Corporate Author : DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP PERFORMANCE DEPT

Personal Author(s) : Turner,C R ; McCreight,K K

PDF Url : ADA134858

Report Date : Jul 1983

Pagination or Media Count : 238

Abstract : The response characteristics of a systematic series of seventy-nine 30,000-ton appended SWATH configurations with lower hulls having elliptical cross sections have been investigated analytically. Three values each of waterplane area, strut length, longitudinal center of buoyancy, and longitudinal center of flotation are used to define the hullforms. For each configuration, root mean squared values of heave, pitch, relative bow motion, and absolute stern motion are presented for a unit significant wave height and a range of modal periods for head and following seas at four speeds. Performance assessments in which the highest significant wave height for which several seakeeping criteria are not exceeded are given . Trends among the performance assessments for the various configurations are noted and provide a seakeeping reference for the designer for potential 30,000-ton SWATH ships. (Author)

Descriptors :   *Ship hulls, Hydrodynamic characteristics, Seakeeping, Response, Buoyancy, Flotation, Ship motion, Heaving, Pitch(Motion), Struts, Length, Water waves, Height, Ellipses, Cross sections, Tables(Data), Graphs

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE