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Estimated Benefits Of Variable Geometry Wing Camber Control For Transport Aircraft
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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 Estimated Benefits of Variable-Geometry Wing Camber Control for Transport Aircraft by : Alexander Bolonkin
Download or read book Estimated Benefits of Variable-Geometry Wing Camber Control for Transport Aircraft written by Alexander Bolonkin and published by . This book was released on 1999 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimated Benefits of Variable-geometry Wing Camber Vontrol for Transport Aircraft by : Alexander Bolonkin
Download or read book Estimated Benefits of Variable-geometry Wing Camber Vontrol for Transport Aircraft written by Alexander Bolonkin and published by . This book was released on 1999 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimated Benefits of Variable-geometry Wing Chamber Control for Transport Aircraft by : Alexander Bolonkin
Download or read book Estimated Benefits of Variable-geometry Wing Chamber Control for Transport Aircraft written by Alexander Bolonkin and published by . This book was released on 1999 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Variable-camber Systems Integration and Operational Performance of the AFTI/F-111 Mission Adaptive Wing by : John W. Smith
Download or read book Variable-camber Systems Integration and Operational Performance of the AFTI/F-111 Mission Adaptive Wing written by John W. Smith and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural and Mechanical Feasibility Study of a Variable Camber Wing (VCW) for a Transport Aircraft by :
Download or read book Structural and Mechanical Feasibility Study of a Variable Camber Wing (VCW) for a Transport Aircraft written by and published by . This book was released on 1908 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aerodynamic investigations have shown' that variable camber wings (VCW) for transport aircraft have considerable potential in terms of improving aircraft performance and enhancing their operational flexibility. In order to justify these benefits it is essential that the camber varying system is structurally and mechanically feasible. This research examined the feasibility of providing variable camber to two supercritical aerofoil sections of different'characteristics. The unique method of camber vaTiation was applied by rotating the forward and aft regions of the aerofoil on a circular arc and keeping the surface continuous and matching at their attachment to the main wing box. The change in camber thus increased the chord due to translational motion of the aforementioned regions. The geometries required for varying the forward camber by this method presented formidable design difficulties and no immediate solutions could be found. As a result, an alternative geometry was devised which accepts camber by simply drooping the nose region. A novel idea was developed for aft camber variation, which is considered to be universal for all supercritical aerofoil sections. The system utilises a tracking mechanism which guides a trailing edge element on a continuous arc. Surface continuity is provided by a flexible skin on the upper side and a spring loaded hinged panel on the under side. The flexible skin remains attached to the trailing edge element through a series of roller link arrangement which locate the skin in a separate guide rail. The large moment arm and therefore the increased torsional loads created due to the translational motion of the trailing edge element necessitated investigation of alternative deployment geometries. As a result two additional geometries were schemed. One had reduced radius of rotation and therefore reduced extension, while the other changed camber by drooping the aft region without any chordal extension. Since there was no aerodynamic evid.
Book Synopsis Morphing Wing Technologies by : Sergio Ricci
Download or read book Morphing Wing Technologies written by Sergio Ricci and published by Butterworth-Heinemann. This book was released on 2017-10-27 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt: Morphing Wings Technologies: Large Commercial Aircraft and Civil Helicopters offers a fresh look at current research on morphing aircraft, including industry design, real manufactured prototypes and certification. This is an invaluable reference for students in the aeronautics and aerospace fields who need an introduction to the morphing discipline, as well as senior professionals seeking exposure to morphing potentialities. Practical applications of morphing devices are presented—from the challenge of conceptual design incorporating both structural and aerodynamic studies, to the most promising and potentially flyable solutions aimed at improving the performance of commercial aircraft and UAVs. Morphing aircraft are multi-role aircraft that change their external shape substantially to adapt to a changing mission environment during flight. The book consists of eight sections as well as an appendix which contains both updates on main systems evolution (skin, structure, actuator, sensor, and control systems) and a survey on the most significant achievements of integrated systems for large commercial aircraft. - Provides current worldwide status of morphing technologies, the industrial development expectations, and what is already available in terms of flying systems - Offers new perspectives on wing structure design and a new approach to general structural design - Discusses hot topics such as multifunctional materials and auxetic materials - Presents practical applications of morphing devices
Book Synopsis Variable-camber Systems Integration and Operational Performance of the AFTI/F-111 Mission Adaptive Wing by : John W. Smith
Download or read book Variable-camber Systems Integration and Operational Performance of the AFTI/F-111 Mission Adaptive Wing written by John W. Smith and published by . This book was released on 1992 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Variable Camber Wings for Transport Aircraft by : A. J. Rao
Download or read book Variable Camber Wings for Transport Aircraft written by A. J. Rao and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018) by : Xinguo Zhang
Download or read book The Proceedings of the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018) written by Xinguo Zhang and published by Springer. This book was released on 2019-06-08 with total page 3068 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a compilation of peer-reviewed papers from the 2018 Asia-Pacific International Symposium on Aerospace Technology (APISAT 2018). The symposium is a common endeavour between the four national aerospace societies in China, Australia, Korea and Japan, namely, the Chinese Society of Aeronautics and Astronautics (CSAA), Royal Aeronautical Society Australian Division (RAeS Australian Division), the Korean Society for Aeronautical and Space Sciences (KSAS) and the Japan Society for Aeronautical and Space Sciences (JSASS). APISAT is an annual event initiated in 2009 to provide an opportunity for researchers and engineers from Asia-Pacific countries to discuss current and future advanced topics in aeronautical and space engineering.
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 28th International Symposium on Shock Waves by : Konstantinos Kontis
Download or read book 28th International Symposium on Shock Waves written by Konstantinos Kontis and published by Springer Science & Business Media. This book was released on 2012-03-22 with total page 1122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The University of Manchester hosted the 28th International Symposium on Shock Waves between 17 and 22 July 2011. The International Symposium on Shock Waves first took place in 1957 in Boston and has since become an internationally acclaimed series of meetings for the wider Shock Wave Community. The ISSW28 focused on the following areas: Blast Waves, Chemically Reacting Flows, Dense Gases and Rarefied Flows, Detonation and Combustion, Diagnostics, Facilities, Flow Visualisation, Hypersonic Flow, Ignition, Impact and Compaction, Multiphase Flow, Nozzle Flow, Numerical Methods, Propulsion, Richtmyer-Meshkov, Shockwave Boundary Layer Interaction, Shock Propagation and Reflection, Shock Vortex Interaction, Shockwave Phenomena and Applications, as well as Medical and Biological Applications. The two Volumes contain the papers presented at the symposium and serve as a reference for the participants of the ISSW 28 and individuals interested in these fields.
Book Synopsis Incorporating Sustainable Practice in Mechanics and Structures of Materials by : Sam Fragomeni
Download or read book Incorporating Sustainable Practice in Mechanics and Structures of Materials written by Sam Fragomeni and published by CRC Press. This book was released on 2010-11-18 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: Incorporating Sustainable Practice in Mechanics of Structures and Materials is a collection of peer-reviewed papers presented at the 21st Australasian Conference on the Mechanics of Structures and Materials (ACMSM21, Victoria, University, Melbourne, Australia, 7th 10th of December 2010). The contributions from academics, researchers and practisin
Book Synopsis Non-Rocket Space Launch and Flight by : Alexander Bolonkin
Download or read book Non-Rocket Space Launch and Flight written by Alexander Bolonkin and published by Elsevier. This book was released on 2010-07-07 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years scientists have investigated a series of new methods for non-rocket space launch, which promise to revolutionize space launches and flight. Particularly in the current political climate new, cheaper, and more ‘fuel efficient’ methods are being investigated. Such new methods include the gas tube method, cable accelerators, tether launch systems, space elevators, solar and magnetic sails, circle launcher space keepers and more. The author of Non-Rocket Space Launch and Flight brings a vast amount of experience to the topic, having worked as a engineer, designer, project director and researcher at key institutes including NASA and the US Air Force. Explores all the new non-rocket space launch methods, and compares them with each other and traditional rockets Investigates the unifying principles of the different systems and shows how to select the best design suited to the mission Author brings together technical and theoretical expertise from both industry and academia
Book Synopsis Innovations and New Technologies (v.2) by : Alexander Bolonkin
Download or read book Innovations and New Technologies (v.2) written by Alexander Bolonkin and published by Lulu.com. This book was released on 2014-10-23 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years of the 21st Century the author of this book and other scientists as well, have instigated and described many new ideas, researches, theories, macro-projects, USA and other countries patented concepts, speculative macro-engineering ideas, projects and other general innovations in technology and environment change. In aerospace these include air catapult transportation, hypersonic ground electric AB engine, protection of the Earth from asteroids and delivery of asteroids to the Earth, re-entry space apparatus to Earth, airborne wind turbines, electronic wind generator and propulsion, long distance shells, new self-propelled penetration bomb, inexpensive mini thermonuclear reactor, etc. In technology these include new ideas and innovation in space sciences and Earth technologies: Underground explosion nuclear energy; Electron hydro electric generator; Electron super speed hydro propulsion; Electric theory of tornado; Protection from tornado; and so on.
Book Synopsis Femtotechnologies and Innovative Projects by : Alexander Bolonkin
Download or read book Femtotechnologies and Innovative Projects written by Alexander Bolonkin and published by Lulu.com. This book was released on 2017-03-15 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: New macro-projects, concepts, ideas, methods, and innovations are explored here, but hardly developed. There remain many problems that must be researched, modeled, and tested before these summarized research ideas can be practically designed, built, and utilized-that is, fully developed and utilized. Most ideas in our book are described in the following way: 1) Description of current state in a given field of endeavor. A brief explanation of the idea researched, including its advantages and short comings; 2) Then methods, estimation and computations of the main system parameters are listed, and 3) A brief description of possible applications-candidate macro-projects, including estimations of the main physical parameters of such economic developmental undertakings. The first and third parts are in a popular form accessible to the wider reading public, the second part of this book will require some mathematical and scientific knowledge, such as may be found amongst technical school graduate students.
Book Synopsis Adaptive Compliant Wing by : Fouad Sabry
Download or read book Adaptive Compliant Wing written by Fouad Sabry and published by One Billion Knowledgeable. This book was released on 2022-10-25 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: What Is Adaptive Compliant Wing A wing known as an adaptive compliant wing is one that is pliable enough to allow for some features of its form to be altered while the aircraft is in motion. The advantages of having flexible wings are many. The operation of conventional flight control devices often involves the use of hinges, which may result in interruptions to the airflow, vortices, and even, in certain instances, separation of the airflow. These factors add to the drag that the airplane experiences, which in turn leads to decreased efficiency and increased expenses for fuel. Aerofoils that are flexible have the ability to alter aerodynamic forces while causing less disturbances to the flow of air. This results in reduced aerodynamic drag, which leads to increased fuel efficiency. How You Will Benefit (I) Insights, and validations about the following topics: Chapter 1: Adaptive compliant wing Chapter 2: Wing Chapter 3: Aeroelasticity Chapter 4: Airfoil Chapter 5: Elevon Chapter 6: Aircraft flight control system Chapter 7: Elevator (aeronautics) Chapter 8: Flap (aeronautics) Chapter 9: Wing warping Chapter 10: Flaperon Chapter 11: Spoileron Chapter 12: Variable-camber wing Chapter 13: Camber (aerodynamics) Chapter 14: Boeing X-53 Active Aeroelastic Wing Chapter 15: Parker variable wing Chapter 16: Wingsail Chapter 17: Wing configuration Chapter 18: Leading-edge slat Chapter 19: Flexible wing Chapter 20: Adaptive compliant trailing edge Chapter 21: General Dynamics-Boeing AFTI/F-111A Aardvark (II) Answering the public top questions about adaptive compliant wing. (III) Real world examples for the usage of adaptive compliant wing in many fields. (IV) 17 appendices to explain, briefly, 266 emerging technologies in each industry to have 360-degree full understanding of adaptive compliant wing' technologies. Who This Book Is For Professionals, undergraduate and graduate students, enthusiasts, hobbyists, and those who want to go beyond basic knowledge or information for any kind of adaptive compliant wing.
