Download or read book Dynamic Structural Aeroelastic Stability Testing of the XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1982 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the past 20 years, a significant effort has been made to understand and predict the structural aeroelastic stability characteristics of the tilt rotor concept. Beginning with the rotor-pylon oscillation of the XV-3 aircraft, and the problem was identified and then subjected to a series of theoretical studies, plus model and full-scale wind tunnel tests. From this data base, methods were developed to predict the structural aeroelastic stability characteristics of the XV-15 Tilt Rotor Research Aircraft. This paper examines the predicted aeroelastic characteristics in light of the major parameters effecting rotor-pylon-wing stability; describes flight test techniques used to obtain XV-15 aeroelastic stability; presents a summary of flight test results; compares the flight test results to the predicted values; and presents a limited comparison of wind tunnel results, flight test results, and their correlation with predicted values.
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by Martin D. Maisel and published by . This book was released on 2000 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The History of the XV 15 Tilt Rotor Research Aircraft written by Martin D. Maisel and published by . This book was released on 2000 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Capability to Calculate Tilting Prop rotor Aircraft Performance Loads and Stability written by Wayne Johnson and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of the Capability to Calculate Tilting Prop rotor Aircraft Performance Loads and Stability written by and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Historical Overview of Aeroelasticity Branch and Transonic Dynamics Tunnel Contributions to Rotorcraft Technology and Development written by and published by DIANE Publishing. This book was released on 2001 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Identification of XV 15 Aeroelastic Modes Using Frequency Domain Methods written by and published by DIANE Publishing. This book was released on 1989 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Paper written by and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulation of the XV 15 Tilt Rotor Research Aircraft written by and published by . This book was released on 1982 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Flight Test Techniques and Correlation written by ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT NEUILLY-SUR-SEINE (France) and published by . This book was released on 1983 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: Conclusions of the FMP Symposium in Valloire (1975) and Progress on Ground/Fight Correlation; Progress in Wind Tunnel Test Techniques and in the Corrections and Analysis of the Results; Ground/Flight Correlation on the Space Shuttle Orbiter from Re-Entry to Landing; Ground/Flight Correlation on the Alpha-Jet Experimental Aircraft with a Transonic Wing; Flight and Wind-Tunnel Correlation of Boundary-Layer Transition on the AEDC Transition Cone; Experimental Investigations of Transport Aircraft Low Speed Engine Interference Effects and Flight Test Correlation; Comparison of Prediction, Wind Tunnel and Flight Test Data for the Canadair Challenger Turbofan Aircraft; Lessons from Tornado Afterbody Development; The Use of Free-Flight Models for the Prediction of Departure Control; Comparison of Flight and Wind Tunnel Buffeting Measurements on the SAAB 105 Aircraft; Some Measurements of Buffeting on a Flutter Model of a Typical Strike Aircraft; Correlation Aspects of Analytical Wind Tunnel and Flight Test Results for a Hingeless Rotor Helicopter; Dynamic Structural Aeroelastic Stability Testing of the XV-15 Tilt Rotor Research Aircraft; Structural Aspects of Ground/Flight Correlation on the Variable Sweep Wing Aircraft Tornado; Real-Time Flutter Analysis of an Active Flutter-Suppression System on a Remotely Piloted Research Aircraft; Flight Flutter Testing with Emphasis on the Tip Vane Method.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling XV 15 Tilt rotor Aircraft Dynamics by Frequency and Time domain Identification Techniques written by and published by . This book was released on 1986 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Models of the open-loop hover dynamics of the XV-15 Tilt-Rotor Aircraft are extracted from flight data using two approaches: frequency-domain and time-domain identification. Both approaches are reviewed and the identification results are presented and compared in detail. The extracted models compare favorably, with the differences associated mostly with the inherent weighting of each technique. Step responses are used to show that the predictive capability of the models from both techniques is excellent. Based on the results of this study, the relative strengths and weaknesses of the frequency and time-domain techniques are summarized, and a proposal for a coordinated parameter identification approach is presented. (Author).
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1992 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Aerodynamics Program Annual Report 1989 written by and published by . This book was released on 1990 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Whirl Flutter of Turboprop Aircraft Structures written by Jiří Čečrdle and published by Elsevier. This book was released on 2023-01-13 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whirl Flutter of Turboprop Aircraft Structures, Second Edition explores the whirl flutter phenomenon, including theoretical, practical, analytical and experimental aspects of the matter. Sections provide a general overview regarding aeroelasticity, discussions on the physical principle and the occurrence of whirl flutter in aerospace practice, and experimental research conducted, especially from the 60s. Other chapters delve into analytical methods such as basic and advanced linear models, non-linear and CFD based methods, certification issues including regulation requirements, a description of possible certification approaches, and several examples of aircraft certification from aerospace. Finally, a database of relevant books, reports and papers is provided. This updated and expanded second edition covers new chapters including both analytical and experimental aspects of the subject matter. - Provides complex information on turboprop aircraft whirl flutter phenomenon - Presents both theoretical and practical (certification related) issues - Includes experimental research as well as analytical models (basic and advanced) of matter - Includes both early-performed works and recent developments - Contains a listing of relevant books and reports
Download or read book The Influence of Pitch lag Coupling on the Predicted Aeroelastic Stability of the XV 15 Tilting Proprotor Aircraft written by and published by . This book was released on 1977 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Symposium Proceedings written by Society of Experimental Test Pilots. Symposium and published by . This book was released on 1985 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
