A best practices method for aircraft flight control law design.

This work develops a systematic design procedure for flight control laws design which allows: the use of best practices; compatibility with current fly-by-wire implementation; and integration with aircraft and systems design. Such procedure is based on a two-degree-of-freedom control structure, the...

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Bibliographic Details
Main Author: Lucas Rubiano de Souza Cruz
Other Authors: Karl Heinz Kienitz
Format: Others
Language:English
Published: Instituto Tecnológico de Aeronáutica 2008
Subjects:
Online Access:http://www.bd.bibl.ita.br/tde_busca/arquivo.php?codArquivo=705
Description
Summary:This work develops a systematic design procedure for flight control laws design which allows: the use of best practices; compatibility with current fly-by-wire implementation; and integration with aircraft and systems design. Such procedure is based on a two-degree-of-freedom control structure, the first degree of freedom defining input to output characteristics and the second coping with disturbance rejection, noise rejection and robustness. The procedure uses a frequency domain based uncertainty description for treating robustness. A case study comprising a primary longitudinal flight control law design for a business aircraft is defined to evaluate the procedure. Results show the adequacy of the procedure: to coalesce many different requirements into simpler ones; evidence compromises between different requirements; design robust control laws given a set of reasonable requirements.