Vibration Measurements of CW 454 Sonar Dome.

Abstract

Vibration investigations consisting of mechanical impedance and decay rate studies were conducted on the modified USN/USL furnished CW 454 Sonar Dome at Boston Naval Shipyard prior to installation on the U.S.S. WITEK (EDD 848). The surveys included impedance and decay rate measurements on the dome 'in air' and 'in water', with and without AN/SQS-23 transducer installed as well as decay rate measurements on the installed dome in drydock and at pierside. The results of the mechanical impedance survey show the transfer impedances to be very high for a structure of this type while the decay rate tests show no simple, direct correlaton between the 'in air' to 'in water' conditions except the increased damping for a submerged dome. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1965
Accession Number
ADA067031

Entities

People

  • G. Ogle

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Accelerometers
  • Data Analysis
  • Frequency
  • Impedance
  • Instrumentation
  • Measurement
  • Measuring Instruments
  • Mechanical Impedance
  • Mechanical Waves
  • Resonance
  • Resonant Frequency
  • Shipyards
  • Sonar Domes
  • Tensile Strength
  • Transducers
  • Vibration

Readers

  • Acoustical Oceanography.
  • Naval Architecture and Marine Engineering.
  • Radar Systems Engineering.