STUDY OF THE EFFECTIVENESS OF INFLIGHT-THRUST REVERSERS FOR AN AIRCRAFT PERFORMING A 180-DEGREE TURNING MANEUVER.

Abstract

Modern control theory is used to find a control scheme to minimize certain flight parameters of an aircraft in a 180-degree turning maneuver. The specific technique is that of the conjugate gradient method. The aircraft is described by a set of nonlinear differential equations. Two problems, constant and near constant altitude, are considered. For each problem, the comparison is made of the flight parameters between aircraft with and without inflight-thrust reversing capabilities showing the inflight-thrust reverser will reduce the radius of turn. A method of simultaneously adjusting the weighting coefficients of the cost functional is shown to be of significant value during the most difficult period of coefficient selection; viz, the initial trial solutions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1968
Accession Number
AD0838878

Entities

People

  • Donald W. Powell

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Altitude
  • Coefficients
  • Control Theory
  • Differential Equations
  • Equations
  • Flight
  • Inflight
  • Linear Differential Equations
  • Maneuvers
  • Mathematical Analysis
  • Nonlinear Differential Equations

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Calculus or Mathematical Analysis
  • Control Systems Engineering.