Accession Number:

ADA043399

Title:

Modern Methods of Aircraft Stability and Control Analysis

Descriptive Note:

Annual technical rept. 1 Feb 1976-31 Jan 1977

Corporate Author:

ANALYTIC SCIENCES CORP READING MA

Report Date:

1977-05-27

Pagination or Media Count:

250.0

Abstract:

This report presents new methodologies and results in the study of aircraft stability and control, including detailed consideration of piloting effects on the aircrafts motion. The potential for departure i.e., loss of control in transonic and supersonic flight is addressed using linear, time- invariant dynamic models which incorporate longitudinal-lateral-directional coupling. A method for designing departure-prevention command augmentation systems DPCAS is developed and is applied to the subsonic model of the F-14A aircraft. This design technique can provide excellent flying qualities for the aircraft throughout its flight envelope. A multivariable limit cycle analysis technique MULCAT is used to predict possible self-induced nonlinear oscillations, and the results of this prediction are evaluated using a direct simulation of the nonlinear dynamic model.

Subject Categories:

  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE