NEW METHODS FOR DETERMINING THE LOSS FACTOR OF MATERIALS AND SYSTEMS

Abstract

Two new methods, one of which uses mechanical impedance techniques, are described for measuring the loss factor of materials and systems at any arbitrary frequency in frequency range from 10 to 10,000 cps. The accuracy of these methods increases with increased damping and therefore the methods complement other methods which are most accurate for low values of damping. The apparatus and accuracies are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1963
Accession Number
AD0403934

Entities

People

  • Fred Schloss

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Composite Structures
  • Computations
  • Equations
  • Frequency
  • Impedance
  • Instrumentation
  • Materials
  • Mathematics
  • Measurement
  • Mechanical Impedance
  • Reactance
  • Resonance
  • Resonant Frequency
  • Standing Waves
  • Very Low Frequency
  • Waves

Readers

  • Acoustics.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)