PRELIMINARY FLUTTER ANALYSIS. VOLUME 3. CONTROL SURFACES

Abstract

Equations of motion and stability equations are formulated using lumped spring-mass idealization and incompressible strip theory aerodynamics; control system elasticity and inertia are taken into account. One altitude only, sea level, is investigated. Solutions of the stability equations are obtained, giving flutter frequencies and complex damping coefficients required to maintain flutter as functions of flutter velocities for various values of stiffness parameter, both with and without aerodynamic balancing (centering) of the control surface. Both a symmetric and an antisymmetric analysis of the aileron-aileron flight tab - aileron control system are made. An analysis of the rudder - rudder trim tab - rudder control system is included and a symmetric analysis of the horizontal stabilizer - elevator - elevator control system is also made.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0633021

Entities

Organizations

  • General Electric

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aerodynamic Forces
  • Aircrafts
  • Airfoils
  • Control Sticks
  • Control Surfaces
  • Control Systems
  • Equations Of Motion
  • Free Stream
  • Geometry
  • Horizontal Stabilizers
  • Lift Fans
  • Moment Of Inertia
  • Potential Energy
  • Resonant Frequency
  • Sea Level
  • Trim Tabs
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Control Systems Engineering.