The Direct Measurement of Damping Coefficients Using an Inverse Eigenvalue Method

Abstract

A direct measurement technique to identify the viscous damping coefficient of one-dimensional devices has been developed. The frequency- dependent properties of the damping coefficient are inherent in this formulation. It has been shown that the variance in the prediction of the damping coefficient is small. The experimental apparatus is extremely easy to build, and the raw data necessary to make the calculations are readily obtained with standard modal techniques.

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Document Details

Document Type
Technical Report
Publication Date
Nov 06, 1992
Accession Number
ADA258214

Entities

People

  • Andrew John Hull
  • David A. Hurdis
  • Kent D. Kasper
  • Stephen A. Austin

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Coefficients
  • Differential Equations
  • Eigenvalues
  • Equations
  • Frequency
  • Frequency Response
  • Measurement
  • Modulus Of Elasticity
  • Resonance
  • Resonant Frequency
  • Shock Absorbers
  • Standards
  • Stiffness
  • Transfer Functions
  • Undersea Warfare
  • Vibration
  • Waves

Fields of Study

  • Physics

Readers

  • Regression Analysis.
  • Structural Dynamics.