Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Matthew L. Wilbur"'
Autor:
Matthew L. Wilbur, Martin K. Sekula
Publikováno v:
Journal of the American Helicopter Society. 62:1-12
A study was conducted to identify the optimum blade tip planform for a model-scale active twist rotor. The analysis identified blade tip design traits which simultaneously reduce rotor power of an unactuated rotor while leveraging aeromechanical coup
Publikováno v:
The Aeronautical Journal. 120:1468-1486
This paper presents the design and optimisation of an aerofoil with active continuous trailing-edge flap (CTEF) investigated as a potential rotorcraft active control device. Several structural cross-section models are developed: high-fidelity NASA ST
Autor:
Frederico Afonso, Alessandro Airoldi, Salvatore Ameduri, Gianluca Amendola, Gennady A. Amiryants, Francesco Amoroso, Alexandre Antunes, Alfonso Apicella, Gianvito Apuleo, Maurizio Arena, Uwe T.P. Arnold, Silvestro Barbarino, Marco Bellucci, Paolo Bettini, Robert Blackwell, Ruxandra M. Botez, Miguel Á. Castillo Acero, Vasily Chedrik, Alexander Chedrik, Alexander Chevagin, Monica Ciminello, Antonio Concilio, Alessandro De Gaspari, Federico Martín de la Escalera, Luca Angelo Di Landro, Ignazio Dimino, José Lobo do Vale, Antoine Dumont, Roman Efimov, Sergio Esposito, Yasser Essa, Rolf Evenblij, Alessandro Gilardelli, André Gratias, Teodor L. Grigorie, Generoso Iannuzzo, Fanil Ishmuratov, Vladimir Kulesh, Innokentiy Kursakov, Ksenia Kuruliuk, Svetlana Kuzmina, Fernando Lau, Thomas H. Lawrence, Leonardo Lecce, Grace Lima, Peter F. Lorber, Andreas Lühring, Alexander Lysenkov, Marco Magnifico, Vladimir Malenko, Victor Malyutin, Mihir P. Mistry, Christof Nagel, Maria Chiara Noviello, Felipe Odaguil, Antonio Pagano, Damiano Pasini, Modesto Pecora, Rosario Pecora, Fabian Peter, Mikhail Pronin, Francesco Rea, Sergio Ricci, Lorenzo Rossi, Salvatore Russo, Giuseppe Sala, Andrey Saprykin, Oliver Schorsch, Martin Schueller, Sergey Shalaev, Stefan Storm, Tobias Strobl, Eike Stumpf, Afzal Suleman, Viktor Timokhin, Maurizio Verrastro, Andrea Vigliotti, William A. Welsh, Matthew L. Wilbur, Mikhail Zichenkov
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6add9ae250cd75a4b5cef7d672002236
https://doi.org/10.1016/b978-0-08-100964-2.09991-3
https://doi.org/10.1016/b978-0-08-100964-2.09991-3
Autor:
Silvestro Barbarino, Thomas H. Lawrence, Matthew L. Wilbur, Mihir P. Mistry, Uwe T. P. Arnold, Robert H. Blackwell, Peter F. Lorber
Helicopters play significant roles in aviation for search and rescue operations and for transportation of people or goods in remote or inaccessible places. They can fulfill these roles because of their capability to take off and land vertically and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85bb48651f27f612beed202908bf7d75
https://doi.org/10.1016/b978-0-08-100964-2.00024-1
https://doi.org/10.1016/b978-0-08-100964-2.00024-1
Autor:
Matthew L. Wilbur, Martin K. Sekula
Publikováno v:
Journal of the American Helicopter Society. 57:1-12
An analytical study was conducted examining the feasibility of a swashplateless rotor controlled through two trailing-edge flaps (TEFs), where the cyclic and collective controls were provided by separate TEFs. This analysis included a parametric stud
Publikováno v:
Journal of Intelligent Material Systems and Structures. 19:1443-1456
The design and manufacturing of an active twist rotor blade for vibration reduction in helicopters are presented. The rotor blade is integrally twisted by direct strain actuation through embedded piezoelectric fiber composite actuators distributed al
Autor:
Matthew L. Wilbur, Earl R. Booth
Publikováno v:
Journal of the American Helicopter Society. 49:3-10
The use of an Active Twist Rotor system to provide both vibration reduction and performance enhancement has been explored in recent analytical and experimental studies. Effects of active-twist control on rotor noise, however, had not been determined.
Autor:
Carlos E. S. Cesnik, Matthew L. Wilbur, Chester W. Langston, Paul H. Mirick, William T. Yeager, SangJoon Shin
Publikováno v:
Journal of the American Helicopter Society. 47:123-133
Recent studies have indicated that controlled strain-induced blade twisting can be attained using piezoelectric active fiber composite technology, and that such advancement may provide a mechanism for reduced rotorcraft vibrations and increased rotor
Publikováno v:
53rd AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference20th AIAA/ASME/AHS Adaptive Structures Conference14th AIAA.
This paper presents results from the experimental bench testing of the second-generation Active-Twist Rotor blades and compares the results with predictions from modeling based on the blade geometry and cross-sectional layup. Testing was performed wi
Publikováno v:
Journal of Aircraft. 30:906-910
This article describes the development and validation of an optimization procedure to systematically place tuning masses along a rotor blade span to minimize vibratory loads. The masses and their corresponding locations are the design variables that