Transverse Vibration of Uniform and Nonuniform, Internally Damped Cantilever Beams.

Abstract

The driving-point impedances and transmissibilities of uniform cantilever beams in transverse vibration have been measured experimentally. Although the impedances were recorded with a commercial impedance head, the experimental procedures developed permitted measurements to be made through a far greater dynamic range than reported hitherto. The measured impedances of metal alloy beams compare closely with the predictions of theory. The transmissibility of an aluminum beam has been measured in three reciprocal experiments that successfully substantiated the theoretical prediction that extensive regions of attenuation occur in the transmissibility of a beam when it is driven by identical but suitably located dual forces, when it is mass loaded at a point intermediate to these dual forces, and when these forces originate from resilient mountings that support a force-excited mass. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 13, 1972
Accession Number
AD0742110

Entities

People

  • Roger L. Kerlin

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aluminum
  • Attenuation
  • Cantilever Beams
  • Dynamic Range
  • Impedance
  • Measurement
  • Metals
  • Nonuniform
  • Transverse
  • Vibration

Fields of Study

  • Physics

Readers

  • Acoustics.
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Theoretical Analysis.