Accession Number : AD0763368

Title :   Vibration Generator Tests on USNS HAYES (T-AGOR-16),

Corporate Author : NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD SHIP ACOUSTICS DEPT

Personal Author(s) : Antonides,Gary P.

Report Date : JUN 1973

Pagination or Media Count : 28

Abstract : As part of a research program to study the vibratory characteristics of catamaran structures, vibration generator tests were conducted on the USNS HAYES in December 1972, mostly while the ship was at anchor in deep water. There were three easily excited hull modes: one hull pitching against the other at about 4.4 Hz, vertical bending of both hulls together at about 5.2 Hz, and athwartships bending of both hulls together at about 6.3 Hz. (Modified author abstract)

Descriptors :   (*SHIP HULLS, VIBRATION), (*OCEANOGRAPHIC SHIPS, *CATAMARANS), NAVAL VESSELS, BENDING, RESONANT FREQUENCY, MARINE SURFACE PROPULSION, EXCITATION

Subject Categories : Marine Engineering
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE