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http://dx.doi.org/10.5302/J.ICROS.2008.14.7.711

A Study on the Design and Validation of Switching Mechanism in Hot Bench System-Switch Mechanism Computer Environment  

Kim, Chong-Sup (한국항공우주산업)
Cho, In-Je (한국항공우주산업)
Ahn, Jong-Min (국방과학연구소)
Lee, Dong-Kyu (한국항공우주산업)
Park, Sang-Seon (한국항공우주산업)
Park, Sung-Han (한국항공우주산업)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.14, no.7, 2008 , pp. 711-719 More about this Journal
Abstract
Although non-real time simulation and pilot based evaluations are available for the development of flight control computer prior to real flight tests, there are still many risky factors. The control law designed for prototype aircraft often leads to degraded performance from the initial design objectives, therefore, the proper evaluation methods should be applied such that flight control law designed can be verified in real flight environment. The one proposed in this paper is IFS(In-Flight Simulator). Currently, this system has been implemented into the F-18 HARV(High Angle of Attack Research Vehicle), SU-27 and F-16 VISTA(Variable stability. In flight Simulation Test Aircraft) programs. This paper addresses the concept of switching mechanism for FLCC(Flight Control Computer)-SWMC(Switching Mechanism Computer) using 1553B communication based on flight control law of advanced supersonic trainer. And, the fader logic of TFS(Transient Free Switch) and stand-by mode of reset '0' type are designed to reduce abrupt transient and minimize the integrator effect in pitch axis control law. It hans been turned out from the pilot evaluation in real time that the aircraft is controllable during the inter-conversion process through the flight control computer, and level 1 handling qualities are guaranteed. In addition, flight safety is maintained with an acceptable transient response during aggressive maneuver performed in severe flight conditions.
Keywords
SWM(Switching Mechanism); RFCS(Research Flight Control System); PFCS(primary Flight Control System); TFS(Transient Free Switch); STB Mode(Stand-By Mode);
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 1
연도 인용수 순위
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