BILAMINAR CERAMIC FLEXURAL VIBRATORS.

Abstract

A differential equation and boundary conditions that govern the electrically forced flexural vibrations of bilaminar ceramic plates, and analogous one-dimensional equations appropriate for narrow rectangular beams, are developed from linear equations of state for a piezoelectric material. Formulas for the electrical input admittance of a bilaminar plate or beam are given. The effect of shear and rotary inertia on the resonance frequencies of freeedge disks and free-free beams is evaluated. A systematic procedure for calculating the significant elastic, piezoelectric, and dielectric properties of the ceramic transducer from impedance and admittance data is developed, and typical values of these parameters are determined. A brief description of the equivalent circuit of a bilaminar ceramic flexural vibrator is included. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1964
Accession Number
AD0606993

Entities

People

  • Harry A. Schenck

Organizations

  • Harvard University

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Circuits
  • Dielectric Properties
  • Differential Equations
  • Equations
  • Equations Of State
  • Equivalent Circuits
  • Frequency
  • Frequency Shift
  • Impedance
  • Materials
  • Mathematics
  • Piezoelectric Materials
  • Resonance
  • Transducers

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Structural Dynamics.