Analysis of Acoustic Baffles for Underwater Noise Reduction

Abstract

The report is a study of underwater noise reduction techniques being conducted by the Sperry Division for the Office of Naval Research, Acoustic Programs. Included in this report is a description of the work being done on spring mass type acoustic baffles. Specifically, the effects of rigid and compliant outer plates are analyzed, theoretical results are compared with experimental data, and good agreement is obtained. It is concluded that significant gains can be achieved at the lower frequencies through the use of compliant outer plates in the baffle design.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1971
Accession Number
AD0890758

Entities

People

  • Barry Schwartz
  • Brian E. Owens
  • George Rand

Organizations

  • Sperry Corporation

Tags

Communities of Interest

  • Air Platforms
  • Sensors

DTIC Thesaurus Topics

  • Acoustic Detectors
  • Acoustic Propagation
  • Computer Programs
  • Computers
  • Equations
  • Equations Of Motion
  • Experimental Data
  • Frequency
  • Hydrophones
  • Hydrostatic Pressure
  • Insertion Loss
  • Military Research
  • Molecular Dynamics
  • Navy
  • Noise Reduction
  • Test And Evaluation
  • United States

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Combustion and Flow Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).