Path planning algorithm and its simulation validation based on vector field
Hangkong gongcheng jinzhanThe methods of waypoint setting and point curve fitting which are not complex was usually adopted in the path planning of UAV, and the expected heading angle is given in segments. The expected heading angle does not automatically modified with changes in
JIANG Nan, XU Jinfa
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NASA highlights, 1986 - 1988 [PDF]
Highlights of NASA research from 1986 to 1988 are discussed. Topics covered include Space Shuttle flights, understanding the Universe and its origins, understanding the Earth and its environment, air and space transportation, using space to make America ...
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Calculation of the Aerodynamic Behavior of the Tilt Rotor Aeroacoustic Model (TRAM) in the DNW [PDF]
, 2001 Comparisons of measured and calculated aerodynamic behavior of a tiltrotor model are presented. The test of the Tilt Rotor Aeroacoustic Model (TRAM) with a single, 1/4-scale V- 22 rotor in the German-Dutch Wind Tunnel (DNW) provides an extensive set of ...
Johnson, Wayne
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Urban Air Mobility Network and Vehicle Type - Modeling and Assessment [PDF]
This paper describes exploratory modeling of an on-demand urban air mobility (UAM) network and sizing of vehicles to operate within that network. UAM seeks to improve the movement of goods and people around a metropolitan area by utilizing the airspace ...
Kohlman, Lee W. +2 more
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Simulated Rotor Wake Interactions Resulting from Civil Tiltrotor Aircraft Operations Near Vertiport Terminals [PDF]
, 2013 A mid-fidelity computational fluid dynamics tool called RotCFD - specifically developed to aid in rotorcraft conceptual design efforts - has been applied to the study of rotor wake interactions of civil tiltrotor aircraft in the immediate vicinity of ...
Rajagopalan, Ganesh, Young, Larry A.
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Conceptual Design of Environmentally Friendly Rotorcraft - A Comparison of NASA and ONERA Approaches [PDF]
In 2011, a task was initiated under the US-French Project Agreement on rotorcraft studies to collaborate on design methodologies for environmentally friendly rotorcraft. This paper summarizes the efforts of that collaboration. The French and US aerospace
Basset, Pierre-Marie, Russell, Carl
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Optimum design of high speed prop rotors including the coupling of performance, aeroelastic stability and structures [PDF]
An optimization procedure is developed for the design of high speed prop-rotors to be used in civil tiltrotor applications. The goal is to couple aerodynamic performance, aeroelastic stability, and structural design requirements inside a closed-loop ...
Chattopadhyay, Aditi +2 more
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Large Civil Tiltrotor (LCTR2) Interior Noise Predictions due to Turbulent Boundary Layer Excitation [PDF]
The Large Civil Tiltrotor (LCTR2) is a conceptual vehicle that has a design goal to transport 90 passengers over a distance of 1800 km at a speed of 556 km/hr.
Grosveld, Ferdinand W.
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Aerodynamic Limits on Large Civil Tiltrotor Sizing and Efficiency [PDF]
The NASA Large Civil Tiltrotor (2nd generation, or LCTR2) is a useful reference design for technology impact studies. The present paper takes a broad view of technology assessment by examining the extremes of what aerodynamic improvements might hope to ...
Acree, C W.
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Nonlinear stability analysis of whirl flutter in a rotor-nacelle system. [PDF]
Nonlinear Dyn, 2018 Mair C, Rezgui D, Titurus B.
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