Description and Analysis of a Rocket-Vehicle Experiment on Flutter Involving Wing Deformation and Body Motions

Abstract

Flight tests and a mathematical analysis were made to demonstrate and confirm a type of subsonic flutter involving rigid-body motions and wing deformations. For the configuration considered, the period of the oscillation was approximately 100 chords per cycle which is well within the range of period found in dynamic-stability work on rigid aircraft with free controls. A mathematical analysis based on two-dimensional incompressible flow provided a conservative prediction of the airspeed at which the low-frequency flutter occurred. It was found that wing bending stiffness is the important parameter for preventing such flutter.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1955
Accession Number
ADA377431

Entities

People

  • H. J. Cunningham
  • R. R. Lundstrom

Organizations

  • National Aeronautics and Space Administration

Tags

DTIC Thesaurus Topics

  • Aircrafts
  • Airfoils
  • Aspect Ratio
  • Center Of Gravity
  • Equations
  • Flight Speeds
  • Flow
  • Frequency
  • Horizontal Stabilizers
  • Incompressible Flow
  • Launching
  • Leading Edges
  • Mach Number
  • Mathematical Analysis
  • Resonant Frequency
  • Two Dimensional
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Aviation Science / Aeronautics.
  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.