Unified Pilot-Induced Oscillation Theory, Volume 3. PIO Analysis Using Multivariable Methods.

Abstract

This work was conducted as part of a USAF initiative to develop a comprehensive theory to predict pilot-induced oscillation (PIO) tendencies due to the combined effect of all influencing elements. A PIO is a very complicated phenomenon stemming from a dynamic interaction between the pilot and the aircraft. When tight control is required of the pilot, an undesired oscillation can result. However, the adaptive nature of the human pilot makes such oscillations difficult to predict. This report describes an analysis method capable of predicting PIO tendencies due to several simultaneous dynamic factors. A unified approach involving pilot modeling, stability robustness analysis, and multivariable describing function analysis is applied to the problem of identifying aircraft with PIO tendencies. The approach is shown to have ties to existing PIO criteria and is successfully applied to the prediction of PIO tendencies of the M2-F2 lifting body.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1995
Accession Number
ADA307476

Entities

People

  • Anthony B. Page
  • Mark R. Anderson

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Airframes
  • Algorithms
  • Closed Loop Systems
  • Computational Science
  • Computer Simulations
  • Control Surfaces
  • Control Systems
  • Databases
  • Frequency Domain
  • Frequency Response
  • Governments
  • Lifting Bodies
  • Linear Systems
  • Nonlinear Systems
  • Vehicles

Fields of Study

  • Engineering

Readers

  • Aerodynamics/Aeronautics.
  • Regression Analysis.
  • Theoretical Analysis.