Zobrazeno 1 - 10
of 102
pro vyhledávání: '"Roberto Celi"'
Publikováno v:
Journal of Aircraft. :1-12
Structural modes for large aircraft occur at low frequencies and must be accounted for in the flight dynamics modeling and control system design process. An analysis is performed on various linear representations of flexible aircraft with an applicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72a8d1f23d84e19611965447c8546968
https://doi.org/10.2514/1.c037085
https://doi.org/10.2514/1.c037085
Publikováno v:
Journal of the American Helicopter Society. 67:1-16
A high-order tiltrotor mathematical model is developed and validated against flight-test data for the XV-15 and simulations of a large civil tiltrotor (LCTR) concept. Rigid body and inflow states, as well as flexible wing and blade states are used in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa8158e87e4241b596c88e351b9f0642
https://doi.org/10.4050/jahs.67.022003
https://doi.org/10.4050/jahs.67.022003
Publikováno v:
Finisterra - Revista Portuguesa de Geografia, Vol 59, Iss 125(AOP) (2024)
O termo “raciocínio geográfico”, no Brasil, ganhou amplitude e centralidade no debate do ensino de Geografia após a homologação da Base Nacional Comum Curricular (BNCC), em 2017. Este termo, desde então, tem sido utilizado frequentemente na
Externí odkaz:
https://doaj.org/article/c28ca5d3f0ea4b2f9eb4217fd6fd4105
Publikováno v:
Journal of Aircraft. 54:1498-1507
This paper presents the results of a rotorcraft preliminary design problem, solved as a multiobjective design optimization problem. A lift- and thrust-augmented coaxial compound configuration is us...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ff8e397497f45537a489336656d24f9
https://doi.org/10.2514/1.c033999
https://doi.org/10.2514/1.c033999
Publikováno v:
Journal of the American Helicopter Society. 62:1-15
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::930478254f4993da499d71750e7a6a75
https://doi.org/10.4050/jahs.62.032012
https://doi.org/10.4050/jahs.62.032012
Publikováno v:
Journal of Guidance, Control, and Dynamics. 37:1524-1538
A methodology is presented for the selection of approach-to-landing maneuvers that may result in improved brownout characteristics. The methodology is based upon a brownout metric that assesses the relative brownout cloud volume densities in critical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45c755d39784f768a168d09f64ecf3b5
https://doi.org/10.2514/1.g000330
https://doi.org/10.2514/1.g000330
Comparison of Three Coaxial Aerodynamic Prediction Methods Including Validation with Model Test Data
Autor:
Gene C. Ruzicka, Ondrej Juhasz, Roger C. Strawn, Vladimir Khromov, Monica Syal, Roberto Celi, Omri Rand
Publikováno v:
Journal of the American Helicopter Society. 59:1-14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7bd84104ca7fce10e07054dba79ddba2
https://doi.org/10.4050/jahs.59.032006
https://doi.org/10.4050/jahs.59.032006
Autor:
Roberto Celi, John Tritschler
Publikováno v:
Journal of the American Helicopter Society. 58:1-13
The paper describes how to extract the modulation transfer function (MTF) of a brownout cloud from video recordings of specific optical patterns. The MTF is a measure of the loss of contrast and resolution caused by the cloud and can be used as the b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa144986b39e1243e4759d6e7fa426a
https://doi.org/10.4050/jahs.58.012001
https://doi.org/10.4050/jahs.58.012001
Autor:
Roberto Celi
Publikováno v:
Journal of the American Helicopter Society. 55:32004-3200410
The paper presents a methodology for the dispatching of helicopters in a large scale emergency, based on an iterative application of simulation and solution of linear assignment problems. Two examples of different complexity are shown, including sens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e06054434ea64bc70f0604b7fb31df4
https://doi.org/10.4050/jahs.55.032004
https://doi.org/10.4050/jahs.55.032004
Autor:
Dario Fusato, Roberto Celi
Publikováno v:
Journal of Aircraft. 43:241-252
A design optimization study is presented in which rotor dynamics and flight dynamics are simultaneously taken into account to maximize the damping of a rotor lag mode. The design variables include rotor, airframe, and flight control system parameters
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::984b9261c304621c9cca744b69db17bb
https://doi.org/10.2514/1.7943
https://doi.org/10.2514/1.7943