Results 171 to 180 of about 10,092 (210)
Concepts for drone based pipeline leak detection. [PDF]
Front Robot AIBretschneider L +12 more
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Multi objective optimization and experimental investigation of the stirring performance of a novel micro actuator. [PDF]
Sci RepHe Z, Lei J, Yang J, Zhu H.
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Sandwich hybrid structural component for tilt rotor aircraft
2023Sandwich structures have been increasingly used due to their high strength-to-weight ratio and bending and buckling resistance. Today, it is possible to create topology-optimised structures with complex shapes using lattice structures through Additive Manufacturing technologies, avoiding the difficulties in coresheets adhesion in sandwich structures ...
GIUSEPPE MANTEGNA +4 more
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Wind-tunnel tests of a tilt-rotor aircraft
The Aeronautical Journal, 2011AbstractA wide aerodynamic test campaign has been carried out on the tiltrotor aircraft ERICA at the Large Wind Tunnel of Politecnico di Milano by means of a modular 1:8 scale model in order to produce a dataset necessary to better understand the aerodynamic behaviour of the aircraft and to state its definitive design.The target of the tests was the ...
GIBERTINI, GIUSEPPE +5 more
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Fused-PID Control for Tilt-Rotor VTOL Aircraft
2020 28th Mediterranean Conference on Control and Automation (MED), 2020This work presents a fused-PID (FPID) control strategy for a tilt-quadrotor VTOL (vertical takeoff and landing) where the FPID generates attitude setpoints based on the pilot's velocity commands. The FPID controller consists of two separate PID controllers where one can handle fixed-wing aircraft and the other is designed for multicopters.
Bauersfeld, L., Ducard, Guillaume
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The investigation on flight quality of tilt-rotor aircraft
Aircraft Engineering and Aerospace Technology, 2021Purpose This paper aims to present an investigation on flight quality analysis and design of tilt-rotor aircraft combined with corresponding flight quality specifications. Design/methodology/approach From the perspective of modal characteristics of tilt-rotor aircraft, it focuses on the analysis of the change rules of the longitudinal short-term ...
Ke Lu +4 more
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Modeling and Simulation of a Quad-Tilt Rotor Aircraft
IFAC Proceedings Volumes, 2013Abstract Multi-rotor autonomous aerial vehicles have been proposed for several missions where the capability of controlled flight in small areas is required. Unfortunately, small-size electrically powered rotary wings UAVs have usually very short endurance, because of inherent limitation in battery energy density and constraints on maximum weight of ...
FERRARESE, GASTONE +2 more
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Modeling and control of tilt-rotor aircraft
2016 Chinese Control and Decision Conference (CCDC), 2016In this paper, a flight dynamics model of a tiltrotor aircraft is developed used basic equations of motion. This model focuses on control aspect of tiltrotor and is able to show inherent tiltrotor characteristics; then a flight control system is designed used novel L1 adaptive control theory.
Ke Lu +3 more
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XV-15 Tilt Rotor Research Aircraft - Program report
Atlantic Aeronautical Conference, 1979This paper is a status report of the NASA/Army XV-15 Project. The basic tilt-rotor concept and the XV-15 Tilt-Rotor Research Aircraft are discussed and some results of full-scale wind-tunnel tests in the Ames 40- by 80-Foot Wind Tunnel are presented. Flight-test data are included to give preliminary performance, noise, and vibration data in hover and ...
J. MAGEE, K. WERNICKE
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