An Experimental Study of a Vane Controlled Jet Flap Gust Alleviation System.

Abstract

An experimental effort to demonstrate the feasibility of an active gust alleviator using a fluidically actuated jet flap control system was undertaken. The wing model had a variable deflection jet at the trailing edge and was free to move in pitch only. A vane mounted ahead of the wing served as gust sensor and provided the signal which controlled jet angle. Experimental results showed the system capable of alleviating up to 92% of the motion caused by a sinusodial gust at constant amplitude. RMS values of wing rotation angle were found to be 0.68 degrees with control off and 0.29 degrees with control on when excited by a random two-dimensional gust. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1974
Accession Number
AD0777987

Entities

People

  • Leonard Joseph Deal Jr

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Aerodynamic Control Surfaces
  • Amplitude
  • Control Surfaces
  • Control Systems
  • Deflection
  • Flaps (Control Surfaces)
  • Jet Flaps
  • Rotation
  • Trailing Edges
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Human-Computer Interaction (HCI).
  • Robotics and Automation.