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A Concept For Adaptive Performance Optimization On Commercial Transport Aircraft
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722129736 Total Pages :68 pages Book Rating :4.1/5 (297 download)
Book Synopsis A Concept for Adaptive Performance Optimization on Commercial Transport Aircraft by : National Aeronautics and Space Administration (NASA)
Download or read book A Concept for Adaptive Performance Optimization on Commercial Transport Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-02 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: An adaptive control method is presented for the minimization of drag during flight for transport aircraft. The minimization of drag is achieved by taking advantage of the redundant control capability available in the pitch axis, with the horizontal tail used as the primary surface and symmetric deflection of the ailerons and cruise flaps used as additional controls. The additional control surfaces are excited with sinusoidal signals, while the altitude and velocity loops are closed with guidance and control laws. A model of the throttle response as a function of the additional control surfaces is formulated and the parameters in the model are estimated from the sensor measurements using a least squares estimation method. The estimated model is used to determine the minimum drag positions of the control surfaces. The method is presented for the optimization of one and two additional control surfaces. The adaptive control method is extended to optimize rate of climb with the throttle fixed. Simulations that include realistic disturbances are presented, as well as the results of a Monte Carlo simulation analysis that shows the effects of changing the disturbance environment and the excitation signal parameters. Jackson, Michael R. and Enns, Dale F. Unspecified Center...
Book Synopsis A Concept for Adaptive Performance Optimization on Commercial Transport Aircraft by :
Download or read book A Concept for Adaptive Performance Optimization on Commercial Transport Aircraft written by and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Test of an Adaptive Configuration Optimization System for Transport Aircraft by : Glenn B. Gilyard
Download or read book Flight Test of an Adaptive Configuration Optimization System for Transport Aircraft written by Glenn B. Gilyard and published by . This book was released on 1999 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Real-time Transport Performance Optimization Methodology by : Glenn Gilyard
Download or read book Development of a Real-time Transport Performance Optimization Methodology written by Glenn Gilyard and published by . This book was released on 1996 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1976 with total page 1194 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis In-Flight Transport Performance Optimization: An Experimental Flight Research Program and an Operational Scenario by : Glenn Gilyard
Download or read book In-Flight Transport Performance Optimization: An Experimental Flight Research Program and an Operational Scenario written by Glenn Gilyard and published by . This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 34th Aerospace Sciences Meeting & Exhibit by :
Download or read book 34th Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 1996 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Test of an Adaptive Configuration Optimization System for Transport Aircraft by : Glenn B. Gilyard
Download or read book Flight Test of an Adaptive Configuration Optimization System for Transport Aircraft written by Glenn B. Gilyard and published by . This book was released on 1999 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Drag Optimization for Transport Aircraft Mission Adaptive Wing by : Andre L. Martins
Download or read book Drag Optimization for Transport Aircraft Mission Adaptive Wing written by Andre L. Martins and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723832284 Total Pages :50 pages Book Rating :4.8/5 (322 download)
Book Synopsis Estimated Benefits of Variable-Geometry Wing Camber Control for Transport Aircraft by : National Aeronautics and Space Adm Nasa
Download or read book Estimated Benefits of Variable-Geometry Wing Camber Control for Transport Aircraft written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-19 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical benefits of variable-camber capability on subsonic transport aircraft are explored. Using aerodynamic performance models, including drag as a function of deflection angle for control surfaces of interest, optimal performance benefits of variable camber are calculated. Results demonstrate that if all wing trailing-edge surfaces are available for optimization, drag can be significantly reduced at most points within the flight envelope. The optimization approach developed and illustrated for flight uses variable camber for optimization of aerodynamic efficiency (maximizing the lift-to-drag ratio). Most transport aircraft have significant latent capability in this area. Wing camber control that can affect performance optimization for transport aircraft includes symmetric use of ailerons and flaps. In this paper, drag characteristics for aileron and flap deflections are computed based on analytical and wind-tunnel data. All calculations based on predictions for the subject aircraft and the optimal surface deflection are obtained by simple interpolation for given conditions. An algorithm is also presented for computation of optimal surface deflection for given conditions. Benefits of variable camber for a transport configuration using a simple trailing-edge control surface system can approach more than 10 percent, especially for nonstandard flight conditions. In the cruise regime, the benefit is 1-3 percent.Bolonkin, Alexander and Gilyard, Glenn B.Armstrong Flight Research CenterWING CAMBER; WIND TUNNEL TESTS; TRANSPORT AIRCRAFT; ADAPTIVE CONTROL; CAMBERED WINGS; AERODYNAMIC CHARACTERISTICS; AIRCRAFT PERFORMANCE; COMMERCIAL AIRCRAFT; LIFT DRAG RATIO; SUBSONIC SPEED; CONTROL SURFACES; TRAILING EDGES; AILERONS; ALGORITHMS; MACH NUMBER; PITCHING MOMENTS; FLIGHT OPTIMIZATION
Book Synopsis Adaptive Optimization of Aircraft Engine Performance Using Neural Networks by :
Download or read book Adaptive Optimization of Aircraft Engine Performance Using Neural Networks written by and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis FLIGHT TEST OF AN ADAPTIVE CONFIGURATION OPTIMIZATION SYSTEM FOR TRANSPORT AIRCRAFT... NASA/TM-1999-206569... MAR. 1, 1999 by : United States. National Aeronautics and Space Administration
Download or read book FLIGHT TEST OF AN ADAPTIVE CONFIGURATION OPTIMIZATION SYSTEM FOR TRANSPORT AIRCRAFT... NASA/TM-1999-206569... MAR. 1, 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research Opportunities in Advanced Aerospace Concepts by :
Download or read book Research Opportunities in Advanced Aerospace Concepts written by and published by DIANE Publishing. This book was released on 2000 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Tech Briefs written by and published by . This book was released on 1998 with total page 658 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fifty Years of Flight Research by : David F. Fisher
Download or read book Fifty Years of Flight Research written by David F. Fisher and published by . This book was released on 1999 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
