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Identification of derivatives of stability and control of aircraft via non-linear filtering and stochastic optimization: algorithms and data application from test flights

Grant number: 01/08753-0
Support type:Research Grants - Research Partnership for Technological Innovation - PITE
Duration: January 01, 2002 - December 31, 2006
Field of knowledge:Engineering - Aerospace Engineering
Principal researcher:Luiz Carlos Sandoval Góes
Grantee:Luiz Carlos Sandoval Góes
Home Institution: Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
Company: Empresa Brasileira Aeronáutica S/A (EMBRAER)
City: São José dos Campos

Abstract

This project permitted the complete dynamic modeling, that is to say, the determination of the dynamic parameters and of the aerodynamic derivatives and of the control of aircraft on the basis of test flights. Embraer currently uses static techniques for the determination of these parameters, which does not permit the identification of complete models and requires the use of theoretical data, of tunnel trials, and even exhaustive manual adjustment by trial and error. With the mastery of the modern techniques of dynamic systems identification, the company will be able to make use of more representative data from the aircraft, which will save time and allow it to reduce the cycle of development, notably with respect to control systems, such as automatic pilot, yaw damper and other systems for increasing stability. This project was aimed at the application of new numerical, algorithmic methods and experimental techniques for test flights to increase the productivity and reliability of the dynamic and aerodynamic modeling trials for fixed wing jet aircraft. (AU)

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