Scheduling of control surfaces for aircraft performance optimisation

Madhuranath, Padma and Lathasree, P (1993) Scheduling of control surfaces for aircraft performance optimisation. In: Symposium on System identification, 24-25 Nov 1993, Bangalore, India.

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Abstract

Two methods for scheduling the leading edge slat and optimizing lift-to-drag ratio (LDR) are compared. One method employs wind tunnel data on pitching moment, lift force, and drag force to obtain the LDR for assumed Mach number, slat position, and AOA while using an elevator setting that is taken as the trim setting for which the pitching moment is zero. The second method uses the complete 6-DOF simulation model and associated trim algorithm to generate the LDR for a given flight condition and aircraft configuration. The comparison shows that the second method is more realistic as well as simple. It is recommended that this technique be used to arrive at control surface schedules for optimal aircraft performance.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Mathematical models;Aircraft;Scheduling;Control surfaces; Moments;Lifts;Computer simulation;Aerospace;Drag(hindrance); Flight conditions;Wind tunnels;Schedules;Identification; Elevators;Algorithms;Aircraft components;Aircraft performance;Control surfaces;Aerodynamic characteristics
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Flight Mechanics and Control Division, Flight Mechanics and Control Division
Depositing User: Mrs Manoranjitha M D
Date Deposited: 20 Dec 2006
Last Modified: 24 May 2010 09:54
URI: http://nal-ir.nal.res.in/id/eprint/3795

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