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http://dx.doi.org/10.5302/J.ICROS.2006.12.7.621

A Study on the Flight Control Law and the Dynamic Characteristic about Variation of Feedback Gains of T-50 Lateral-Directional Axis  

Kim Chong-Sup (한국항공우주산업(주))
Hwang Byung-Moon (한국항공우주산업(주))
Kang Young-Shin (한국항공우주연구원)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.12, no.7, 2006 , pp. 621-630 More about this Journal
Abstract
The T-50 advanced trainer aircraft combines advanced aerodynamic features and a fly-by-wire flight control system in order to produce a stability and highly maneuverability. The flight control system both longitudinal and lateral-directional axes to achieve performance enhancements and improve stability. The T-50 employs the RSS concept in order to improve the aerodynamic performance in longitudinal axis and the longitudinal control laws employ the dynamic inversion with proportional-plus-integral control method. And, lateral-directional control laws employ the blended roll system both beta-betadot feedback and simple roll rate feedback with proportional control method in order to guarantee aircraft stability. This paper details the design process of developing lateral-directional control laws, utilizing the requirement of MIL-F-8785C and MIL-F-9490D. And, this paper propose the analysis of aircraft characteristics such as dutch-roll mode, roll mode, spiral mode, gain and phase margin about gains for lateral-directional inner loop feedback.
Keywords
RSS (Relaxed Static Stability); FLCS (Flight Control System); FBW (Flight-By-Wire);
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Times Cited By KSCI : 1  (Citation Analysis)
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