Vibrational Response Spectroscopy (VRS). Extension of Acoustic Emission Techniques to Combustion Diagnostic Use.

Abstract

Vibrational response spectroscopy (VRS) is an attempt to adapt a relatively new technology to the study of the transition from deflagration to detonation (DDT) of high energy solid propellants. This technology is actually two technologies very similar in concept but differing greatly in their range and area of application. They are vibrational analysis (the response of mechanical devices and structures to imposed mechanical vibrations), and acoustic emission (AE) analysis (the recording and assessing of stress waves in solid structures). Vibrational analysis usually operates in the frequency range from DC to 10-30 kHz. In contrast AE is concerned with frequencies from hundreds of kilohertz to several megahertz. VRS was initially intended to span the range from 0-200 kHz, but a number of preliminary findings have led to a planned extension to higher frequencies.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1977
Accession Number
ADA063475

Entities

People

  • John L. Eisel

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acoustic Emissions
  • Air Force
  • Burning Rate
  • Chemical Reactions
  • Combustion
  • Frequency
  • Frequency Response
  • High Energy
  • Measurement
  • Particle Size
  • Propellants
  • Recording Systems
  • Rocket Propulsion
  • Solid Propellants
  • Spectrum Analyzers
  • Transducers
  • Vibration

Readers

  • Acoustical Oceanography.
  • Spectroscopy.
  • Systems Analysis and Design