APPLICATION OF FLUIDICS TO AUTOMATIC FLIGHT CONTROL
BOWLES ENGINEERING CORP SILVER SPRING MD
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The report evaluates the feasibility and desirability of a fluidic Automatic Flight Control System. The study is carried out in four parts 1 a description of the basic flight control system and fluidic components 2 the definition and requirements for an automatic flight control 3 a proposed fluidic system and 4 an evaluation of the proposed system with a comparison with an existing Automatic Flight Control System. The Automatic Flight Control System AFCS to be implemented consists of open loop damping OLD systems, stability augmentation systems SAS and an autopilot. Each mode of control - pitch, yaw, roll, and translation - is similar in function. The portion of the complete AFCS chosen for implementation is the pitch axis of a fly-by-wire system. For the Fluidic system under consideration in this report, a fluid signal transmission system is the equivalent of the conventional fly-by-wire system. The proposed fluidic control has hydraulic OLD and SAS, and a pneumatic autopilot. These fluids were chosen primarily for compatibility with the power drive and response, respectively. The reliability comparison, which for the fluidic components was based on estimated failure rates, shows better performance for the fluidic system.
- Fluidics and Fluerics