Acoustic Fatigue of Aircraft Structural Component Assemblies

Abstract

Analytical results for estimating natural frequencies and stress response for conventional stiffened flat panels, two-sided box structure, wedge structure, and unstiffened cylindrical panels are presented. Acoustic fatigue tests of twelve stiffened flat panel and six box structure designs, two specimens for each design, were used to develop design equations for estimating acoustic fatigue resistance of skin, stringer, and rib structure. Computer programs are presented for estimating frequencies of stiffened flat panels, box structure, and wedge structure. Nomographs are presented for skin design and curved panel stress response.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0893427

Entities

People

  • Fred F. Rudder Jr.

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Aspect Ratio
  • Bending Moments
  • Computer Programs
  • Coordinate Systems
  • Dynamic Response
  • Experimental Data
  • Fatigue Tests (Mechanics)
  • Geometry
  • Kinetic Energy
  • Modulus Of Elasticity
  • Pressure Distribution
  • Resonant Frequency
  • Stiffness
  • Structural Components
  • Test And Evaluation
  • Test Fixtures

Fields of Study

  • Physics

Readers

  • Structural Dynamics.