Download or read book Design Fabrication and Test of a Wind Tunnel Model for an Efficient All Movable Fin Design for Military Aircraft written by and published by . This book was released on 2002 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking University of Manchester as follows: A generic all-movable vertical tail will be developed to investigate Diverging Flexible Vertical Tail Technology (DFVT). This model will be a modified version of an existing (U. of Manchester) carbon fiber composite transonic model. This model will have its boundary conditons adjusted based upon results of a previous analytical optimization study that examined weight, performance and observable benefits. A number of different parameters including: Mach number- both sub and supersonic speeds, attachment position, and variable attachment stiffnesses will also be examined experimentally in the wind tunnel at the University of Manchester, United Kingdom.
Download or read book An Efficient All Movable Fin Design for Military Aircraft written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report results from a contract tasking University of Manchester as follows: A generic all-movable vertical tail will be designed (at the conceptual design level) with conventional and with active flexible technologies. The weight, performance and observable benefits of such designs will then be determined relative to the conventional design. The work will examine a range of different parameters including: Mach number both sub and supersonic speeds, attachment position, yaw stiffness. The optimization will be carried out using either the La Grange code, which is already available at the University of Manchester, or the ASTROS code. A Finite Element model for a generic fin is available which was used in the DASA La Grange optimization code. This model was modified previously for the USAF-ASTROS optimization code. Part of the outcome of this work will be defining the best approach to use such multidisciplinary design and optimization codes to achieve an optimal aeroelastic design. This report results from a contract tasking University of Manchester as follows: A generic all-movable vertical tail will be designed (at the conceptual design level) with conventional and with active flexible technologies. The weight. performance and observable benefits of such designs will then be determined relative to the conventional design. The work will examine a range of different parameters including: Mach number - both sub and supersonic speeds. attachment position. yaw stiffness. The optimization will be carried out using either the La Grange code. which is already available at the University of Manchester. or the ASTROS code. A Finite Element model for a generic fin is available which was used in the DASA La Grange optimization code. This model was modified previously for the USAF-ASTROS optimization code. Part of the outcome of this work will be defining the best approach to use such multidisciplinary design and optimization codes to achieve an optimal aeroelastic designc.
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
Download or read book Models for Wind Tunnel Tests Based on Additive Manufacturing Technology written by Weijun Zhu and published by Springer Nature. This book was released on 2024-01-15 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically introduces design and fabrication of physical models for wind tunnel tests based on additive manufacturing technology, including model design technology, model fabrication process, strengthening technology, etc. On this basis, it introduces in detail the specific implementation process of commonly used models, e.g., force measurement models, pressure measurement models, elastic models, and flutter models. This book mainly provides references for researchers and engineers who are engaged in aircraft design, experimental fluid mechanics, and additive manufacturing technology research.
Download or read book Wind Tunnel flight Data Correlation u written by James A. Behal and published by . This book was released on 1971 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt: A program was conducted to obtain data, both steady state and dynamic, from wind tunnel models and full scale flight tests of the RA-5C aircraft. Data were acquired on 0.228 and 0. 125 scale RA-5C inlet models and on a fully instrumented flight test RA-5C aircraft. Interim data reports presenting the data acquired during each test have been published. These data were utilized in this report to develop scaling techniques for correlating small scale model wind tunnel data with full scale flight data. Data presented include duct steady state operating characteristics and pressure distributions in the inlet and at the engine face. Dynamic data are presented in the form of engine face turbulence contour plots, radial turbulence distributions and selected spectral data functions. Data are presented for variations of angle of attack, angle of yaw, Reynolds number, ramp angle, secondary flow rates and inlet diverter width. Brief descriptions of the model and test methods are also presented.
Download or read book Design Fabrication and Testing of Longitudinal Wind Tunnel Balances for Micro Air Vehicle Applications written by Andrew T. Walter and published by . This book was released on 2004 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This research presents the design, implementation and testing of two new wind tunnel balances for capturing longitudinal aerodynamic data (lift, drag, and pitching moment) from MAV scale models"--Abstract.
Download or read book From Archangel to Senior Crown written by Peter W. Merlin and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2008 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lockheed Blackbirds hold a unique place in the development of aeronautics. In their day, the A-12, YF-12, M-21, D-21, and SR-71 variants outperformed all other jet airplanes in terms of altitude and speed. Now retired, they remain the only production aircraft capable of sustained Mach 3 cruise and operational altitudes above 80,000 feet.This is the first book to address the technical aspects of these incredible aircraft. The author describes the design evolution of the Blackbird, from the Archangel to the Senior Crown (the Air Force's SR-71.) He describes in detail the construction and materials challenges faced by Lockheed, as well as the Blackbird's performance characteristics and capabilities.A NASA historian, the author describes NASA's role in using the aircraft as a flying laboratory to collect data on materials, structures, loads, heating, aerodynamics, and performance for high-speed aircraft. The reader will benefit from the technical and programmatic lessons learned.This volume was produced in cooperation with the National Aeronautics and Space Administration.
Download or read book The Design of Wind Tunnels and Wind Tunnel Propellers written by Edward P. Warner and published by . This book was released on 1919 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Method for the Design of Porous wall Wind Tunnels written by George M. Stokes and published by . This book was released on 1956 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design and Wind Tunnel Test of a Ducted Fan Flying Model of the F9F 6 Jet Aircraft written by William K. Washburn and published by . This book was released on 1957 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Design Basis for a New Transonic Wind Tunnel written by John Burnett Willis and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The existing ARL Transonic Wind Tunnel, which is the largest such tunnel in Australia, has severely limited testing capabilities due to a low test Reynolds number and an inadequate test section size. These deficiencies are becoming more acute as military aircraft performance capabilities increase. For current fighter aircraft, the ratio of tunnel test to flight Reynolds number is about 1:100 and the extrapolation of tunnel data to flight carries a high risk of serious error and for some conditions is not possible at all. The small test section size limits the scale of the models which can be tested. The difficulty of machining small models to the required accuracy produces excessive manufacturing times. Moreover, it is not possible to incorporate remotely adjusted control surfaces. These two factors severely restrict tunnel productivity. Various new types of transonic wind tunnels have been suggested overseas and these are discussed briefly. Configurations suitable for local needs are considered, and the basic specification for an appropriate wind tunnel is provided.
Download or read book Tests of Submerged Duct Installation on a Modified Fighter Airplane in the Ames 40 by 80 foot Wind Tunnel written by Norman J. Martin and published by . This book was released on 1947 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Design Fabrication and Testing of a Wind Tunnel for the Study of the Turbulent Transport of Aerosols written by Malcolm Swope Child and published by . This book was released on 1992 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Speed Wind Tunnel Testing written by Alan Pope and published by Wiley-Interscience. This book was released on 1984 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Download or read book Wind Tunnel Model Design and Test Using Rapid Prototype Materials and Processes written by Richard R. Heisier and published by . This book was released on 2001 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether an airframe is a new design, modification of an existing design, or evaluation of a competing or foreign design, an accurate, high-confidence representation of the airframe aerodynamics is paramount to any low-risk design or evaluation effort. These aerodynamic estimates are used for vehicle and component sizing, performance estimates, and autopilot design and evaluation. The advent of new rapid prototyping manufacturing techniques and materials could provide a means to reduce the cost associated with the acquisition of a wind tunnel model (WTM), provided the data obtained with the rapid prototype model (RPM) were of sufficient fidelity to justify its use. The Johns Hopkins University Applied Physics Laboratory (JHU/APL) has developed a WTM design that consists of a steel strongback with rapid prototype plastic components attached to it to provide the overall vehicle configuration. In a test at the Lockheed Martin Missile and Fire Control%Dallas High-Speed Wind Tunnel (HSWT), this model (designated RPM-01) demonstrated acceptable data quality and test-to-test data repeatability with a geometrically similar steel and aluminum model. RPM-01 was built for approximately a quarter of the cost and a fraction of the time required of the all-metal high-fidelity model.
Download or read book The Modern Design of Experiments for Wind Tunnel Testing written by Richard DeLoach and published by Academic Press. This book was released on 2017-09-01 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Modern Design of Experiments for Wind Tunnel Testing: A Practitioner’s Guide to Formal Experiment Design for Low-Cost, High-Quality Testing in Experimental Aeronautics covers the background theory needed by those unfamiliar with Design of Experiments (DOE) methods, using detailed examples from decades of work at NASA Langley to demonstrate practical realities, applications and limitations. Pioneering NASA research scientist Richard DeLoach shares theoretical background, unrivalled practical experience and detailed examples of a new approach to aeronautical wind tunnel test design. Understanding the needs of wind tunnel practitioners faced with insufficient resources for, and disappointingly unreliable results through, traditional One Factor At a Time (OFAT) testing, DeLoach has spent decades honing his take on the established Design of Experiments (DOE) approach and applying it to aeronautical testing in a wind tunnel setting. His papers on Modern Design of Experiments (MDOE) relating to experimental aeronautics have won him numerous AIAA ‘Outstanding Paper’ and ‘Best Paper’ accolades, as well as a NASA Exceptional Technology Achievement Medal in 2005. In this ground-breaking new book, DeLoach examines the massive potential for cost savings and quality improvement through DOE methods of testing, driving great interest in the topic within the aerospace community. The book is an essential reference to this novel approach from an experienced leader in the field. Offers a true practitioner's guide to this new approach to wind tunnel experiment design from a NASA pioneer in experimental aeronautics Promises cost savings through increased efficiency Incorporates new tactics for quality assessment and assurance, designed to reduce the experimental uncertainty in wind tunnel testing Includes coverage of essential knowledge and first-principles alongside practical examples, insights, guidance and limitations to facilitate successful application in your research and testing
Download or read book Cryogenic Wind Tunnel Models Design and Fabrication written by and published by . This book was released on 1983 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
