SONIC FATIGUE LIFE DETERMINATION BY SIREN TESTING

Abstract

Experimental and theoretical researches were made on the problem of predicting the fatigue life of a resonant structure exposed to jet noise by testing it with intense sound from a siren. One panel design of Alclad 2024 aluminum was tested to fatigue with constant-amplitude and variable amplitude siren sounds and with jet noise. A close correlation of all three results was found. A comparison was also made of fatigue lifetimes of a resonant cantilever beam, of plain 2024 aluminum, measured with constant excitation amplitude (pure tone) and with random excitation. Random lifetimes were shorter than predictions from constant-amplitude data.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1962
Accession Number
AD0278173

Entities

People

  • Charles I. Malme
  • Preston W. Smith Jr.

Organizations

  • BBN Technologies

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aluminum Alloys
  • Band Spectra
  • Computational Science
  • Distribution Curves
  • Fatigue Life
  • Fatigue Tests (Mechanics)
  • Field Tests
  • Frequency
  • Human Factors Engineering
  • Jet Engines
  • Measurement
  • Mechanics
  • Pressure Distribution
  • Pressure Measurement
  • Test And Evaluation
  • Test Methods

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Materials Science (Mechanical Engineering).
  • Structural Dynamics.