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A Generic Guidance and Control Structure for Six-Degree-of-Freedom Conceptual Aircraft DesignA control system framework is presented for both real-time and batch six-degree-of-freedom simulation. This framework allows stabilization and control with multiple command options, from body rate control to waypoint guidance. Also, pilot commands can be used to operate the simulation in a pilot-in-the-loop environment. This control system framework is created by using direct vehicle state feedback with nonlinear dynamic inversion. A direct control allocation scheme is used to command aircraft effectors. Online B-matrix estimation is used in the control allocation algorithm for maximum algorithm flexibility. Primary uses for this framework include conceptual design and early preliminary design of aircraft, where vehicle models change rapidly and a knowledge of vehicle six-degree-of-freedom performance is required. A simulated airbreathing hypersonic vehicle and a simulated high performance fighter are controlled to demonstrate the flexibility and utility of the control system.
Document ID
20050029394
Acquisition Source
Armstrong Flight Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Cotting, M. Christopher (NASA Dryden Flight Research Center Edwards, CA, United States)
Cox, Timothy H. (NASA Dryden Flight Research Center Edwards, CA, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2005
Subject Category
Cybernetics, Artificial Intelligence And Robotics
Report/Patent Number
AIAA Paper 2005-0032
Meeting Information
Meeting: AIAA Aerospace Sciences Meeting and Exhibit
Location: Reno, NV
Country: United States
Start Date: January 10, 2005
End Date: January 13, 2005
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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