Accession Number : ADD016468

Title :   Submarine Hull Structures Providing Acoustically Isolated Hull Openings.

Descriptive Note : Patent Application, Filed 30 Jun 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Moody, Paul E

Report Date : 30 Jun 1994

Pagination or Media Count : 13

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.

Descriptors :   *PATENT APPLICATIONS, *ACOUSTIC MATERIALS, *SUBMARINE HULLS, *ACOUSTIC COUNTERMEASURES, ACOUSTICS, ISOLATION, OPENINGS, RINGS, ACOUSTIC INSULATION, TORPEDO TUBES, COAXIAL CONFIGURATIONS, ACOUSTIC DETECTION, SUBMARINE DETECTION

Subject Categories : Acoustic Countermeasures
      Acoustics
      Submarine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE