VIBRATION OF NONSYMMETRIC PLATES IN A GAS FLOW,

Abstract

Critical flutter and divergence parameters are obtained for trapeziform bracket plates with different swing amplitudes and various ratios of parallel sides, placed in a longitudinal gas stream. As an example, the effect is shown of an arrow-shaped rhomboid bracket plate on critical flow rate. A Lagrange equation is given for minot vibration in a thin plate caused by transverse loading, followed by formulas for stability of plate shape and relation to stream parameters, including matrixes of potential and kinetic energy, plus nonconservative loading. Critical flow parameters are tabulated for right-angle trapezoid plates, and vibration forms are illustrated for one such shape. Critical flow parameters for a rhomboid plate are plotted on graphs in relation to sagittal angle of a rear plate edge and of a forward edge. (Author)

Document Details

Document Type
Technical Report
Publication Date
Oct 03, 1969
Accession Number
AD0701019

Entities

People

  • G. A. Marchenko

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Energy
  • Equations
  • Flow
  • Flow Rate
  • Gas Flow
  • Kinetic Energy
  • Right Angles
  • Transverse
  • Vibration

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Approximation Theory.
  • Fluid Dynamics.