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Dynamic Wind Tunnel Tests Of An Aeromechanical Gust Alleviation System Using Several Different Combinations Of Control Surfaces
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Book Synopsis Dynamic Wind-tunnel Tests of an Aeromechanical Gust-alleviation System Using Several Different Combinations of Control Surfaces by : Eric C. Stewart
Download or read book Dynamic Wind-tunnel Tests of an Aeromechanical Gust-alleviation System Using Several Different Combinations of Control Surfaces written by Eric C. Stewart and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781726009812 Total Pages :38 pages Book Rating :4.0/5 (98 download)
Book Synopsis Dynamic Wind-Tunnel Tests of an Aeromechanical Gust-Alleviation System Using Several Different Combinations of Control Surfaces by : National Aeronautics and Space Administration (NASA)
Download or read book Dynamic Wind-Tunnel Tests of an Aeromechanical Gust-Alleviation System Using Several Different Combinations of Control Surfaces written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-22 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some experimental results are presented from wind tunnel studies of a dynamic model equipped with an aeromechanical gust alleviation system for reducing the normal acceleration response of light airplanes. The gust alleviation system consists of two auxiliary aerodynamic surfaces that deflect the wing flaps through mechanical linkages when a gust is encountered to maintain nearly constant airplane lift. The gust alleviation system was implemented on a 1/6-scale, rod mounted, free flying model that is geometrically and dynamically representative of small, four place, high wing, single engine, light airplanes. The effects of flaps with different spans, two size of auxiliary aerodynamic surfaces, plain and double hinged flaps, and a flap elevator interconnection were studied. The model test results are presented in terms of predicted root mean square response of the full scale airplane to atmospheric turbulence. The results show that the gust alleviation system reduces the root mean square normal acceleration response by 30 percent in comparison with the response in the flaps locked condition. Small reductions in pitch-rate response were also obtained. It is believed that substantially larger reductions in normal acceleration can be achieved by reducing the rather high levels of mechanical friction which were extant in the alleviation system of the present model. Stewart, E. C. and Doggett, R. V., Jr. Langley Research Center NASA-TM-78638, L-11918 ...
Book Synopsis Dynamic Wind-tunnel Tests of an Aeromechanical Gust-alleviation System Using Several Different Combinations of Control Surfaces by : Eric C. Stewart
Download or read book Dynamic Wind-tunnel Tests of an Aeromechanical Gust-alleviation System Using Several Different Combinations of Control Surfaces written by Eric C. Stewart and published by . This book was released on 1978 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1979 with total page 1568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by : United States. Superintendent of Documents
Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1130 pages. Available in PDF, EPUB and Kindle. Book excerpt: February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Download or read book Aeronautical Engineering written by and published by . This book was released on 1988 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).
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 1978 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book NASA SP. written by and published by . This book was released on 1988 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis R & D Abstracts by : Technology Reports Centre (Great Britain)
Download or read book R & D Abstracts written by Technology Reports Centre (Great Britain) and published by . This book was released on 1978 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aeronautical Journal written by and published by . This book was released on 1978 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1984-02 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Shock and Vibration Digest written by and published by . This book was released on 1978 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1991 with total page 1126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wind Tunnel Study of Peview H2 and H[infinity] Control for Gust Load Alleviation of Flexible Aircraft by : Kuang-Ying Ting
Download or read book Wind Tunnel Study of Peview H2 and H[infinity] Control for Gust Load Alleviation of Flexible Aircraft written by Kuang-Ying Ting and published by . This book was released on 2021 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper describes simulation and wind tunnel test results of preview gust load alleviation (GLA) controllers based on H2 and H[infinity] approaches. Aeroservoelastic model and gust generation system capabilities at the University of Washington’s 3ft by 3ft low-speed wind tunnel allow low-cost testing and, hence, the completion of multiple GLA wind tunnel tests effectively and practically. The test article used for the work reported here is a flexible half wing-body-tail model with active control surfaces, including two ailerons and an elevator. The work reported here demonstrates the feasibility of preview-information-based-control, allowing the control system to respond to advance warning about incoming gusts that would be, in-flight, provided by light detection and ranging (LIDAR) devices. In the wind tunnel, such advance warning is provided by measurements of the motion of gust generation vanes that send gusts into the test section. Discrete output feedback is augmented with various preview lengths of information. The experimental results show that gust load is reduced, compared to feedback only, as a function of preview length and is halved with enough long enough preview information compared to open-loop control or closed-loop control without preview. Test results presented here validate simulation results and add insight.
Book Synopsis Wind Tunnel Test Techniques by : Colin Britcher
Download or read book Wind Tunnel Test Techniques written by Colin Britcher and published by Academic Press. This book was released on 2023-10-20 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind Tunnel Test Techniques: Design and Use at Low and High Speeds with Statistical Engineering Applications provides an up-to-date treatment of the topic. Beginning with a brief history of wind tunnels and its types and uses, the book goes on to cover subsonic, supersonic and hypersonic wind tunnel design and construction, calibration, boundary corrections, flow quality assessment, pressure surveys, and dynamic testing. It also focuses on wind tunnel facilities, making it useful for both the designer and operator. Engineers and graduate students in aerospace, automotive and similar programs will find this book useful in their work with experimental aerodynamics, gas dynamics, facility design and performance. Deals with a broad range of flow speeds in wind tunnels, from low speed to high speed Provides a discussion of similarity laws as well as material on statistical analysis Includes coverage on facility-to-facility and facility-to-CFD correlation Presents advanced topics such as cryogenic wind tunnels, ground simulation in automotive testing, and propulsion testing
Book Synopsis 37th AIAA Aerospace Sciences Meeting and Exhibit by :
Download or read book 37th AIAA Aerospace Sciences Meeting and Exhibit written by and published by . This book was released on 1999 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of an Apparatus for Wind Tunnel Dynamic Experiments at High-[alpha] by : Nelson Pedreiro
Download or read book Development of an Apparatus for Wind Tunnel Dynamic Experiments at High-[alpha] written by Nelson Pedreiro and published by . This book was released on 1997 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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