Accession Number : ADD017500

Title :   Submarine Hull Structures Providing Acoustically Isolated Hull Openings.

Descriptive Note : Patent, Filed 30 Jun 94, Patented 14 Feb 95,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Moody, Paul E

Report Date : 14 Feb 1995

Pagination or Media Count : 6

Abstract : An acoustic isolation structure providing an acoustically isolated opening and comprising coaxial inner and outer annular structural members defining an irregular annulus between them. Acoustical isolation material is provided within this annulus to acoustically uncouple the two members. Radially overlapping structural rings extending from the members into the annulus limit lateral movement of the inner member and preserve the generally coaxial relation of the members. (MM)

Descriptors :   *SUBMARINE HULLS, *PATENTS, *TORPEDO LAUNCHERS, *ACOUSTIC MATERIALS, *TORPEDO TUBES, ISOLATION, STRUCTURAL RESPONSE, ACOUSTIC ATTENUATION, ACOUSTIC PROPERTIES, PRESSURE HULLS

Subject Categories : Submarine Engineering
      Torpedoes
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE