EFFECT OF CONTACT AREA ON MECHANICAL IMPEDANCE MEASUREMENTS,

Abstract

The weighted average normal mechanical impedance of a circular area on an elastic half space does not depend markedly on the assumed pressure distribution. Its absolute value is almost independent of frequency at least until the wavelength is equal to the circumference of the circular contact area, but the loss tangent varies almost linearly with frequency up to a value of about one at this cut-off. These conclusions are only valid for structures large compared with a wavelength. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 10, 1963
Accession Number
AD0423295

Entities

People

  • R. Plunkett

Organizations

  • University of Minnesota

Tags

DTIC Thesaurus Topics

  • Impedance
  • Measurement
  • Mechanical Impedance
  • Pressure Distribution

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Microwave Engineering.

Technology Areas

  • Space