Soft- Bodied, Towable Active Acoustic Module

Abstract

A soft-bodied, towable, active acoustic module includes a specially formed suspension fixture and a flexible faired body enclosing an active acoustic array. The suspension fixture is a Y-shaped tube having a single forward end and two trailing ends, one for attachment of a trailing tow cable and the other for attachment of the flexible, faired body. The flexible, faired body is an elongated hydrofoil having sections which allow lateral bending. The combination of the suspension feature and lateral bending feature allows the module to be deployed and recovered through shipboard undersurface deployment tubes. A weight attached to the faired body near the lower rear end balances the body to maintain a substantially vertical position during towing. Flow steps on the lower portion of the faired body reduce lateral oscillations.

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Document Details

Document Type
Technical Report
Publication Date
May 21, 1999
Accession Number
ADD019430

Entities

People

  • Anthony A. Ruffa
  • Frederick J. Frodyma
  • Norman Toplosky
  • Peter E. Seaman
  • Thomas R. Stottlemyer

Organizations

  • United States Department of the Navy

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Acoustic Arrays
  • Active Sonar
  • Arrays
  • Attachment
  • Center Of Gravity
  • Deployment
  • Flow
  • Hydrofoils
  • Inventions
  • Materials
  • Orientation (Direction)
  • Oscillation
  • Radar Signatures
  • Sonar
  • Sonar Arrays
  • Sonar Transducers
  • Vertical Orientation

Readers

  • Aerodynamics/Aeronautics.
  • Electrical Engineering