Accession Number : ADA118117

Title :   Digital Flight Control System Design Using Singular Perturbation Methods.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Smyth,Joseph S

PDF Url : ADA118117

Report Date : Dec 1981

Pagination or Media Count : 224

Abstract : In this report a single longitudinal tracker is developed for the aircraft for three different flight conditions. The method used is the singular perturbation method applied to fast-sampling, output-feedback digital control. Each flight condition has three command modes: positive pitch pointing, vertical translation and straight climb. A sensitivity study is performed to validate the design and illustrate design parameter influences on system response. A computer-aided-design program, MULTI, is developed to assist in the iterative design process. The program is fully interactive, user-oriented, and provides error protection. The program allows complete design and simulation of three types of control law designs: known-regular plants, known irregular plants, and unknown plants. The report contains a brief but complete summary of each of these control law design methods. A user's manual and a programmer's manual are provided for further development of the program. (Author)

Descriptors :   *Flight control systems, *Computer programs, *Digital systems, *Perturbations, *Computer aided design, Interactions, Methodology, Parameters, Plotting, Mach number, User manuals, Programming manuals, Requirements, Algorithms, Equations of motion, Theses

Subject Categories : Aircraft
      Theoretical Mathematics
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE