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Parameter Analysis of Active Flap Control for Rotor Aerodynamic Control and Design
Active rotor control of helicopters is the future development direction, and active flap control (AFC) is one of the most promising technologies. However, the numerical simulation of an AFC rotor is challenging.
Runze Xia +3 more
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The wear problems are vital to the planetary roller screw mechanism (PRSM) as they have a great influence on transmission accuracy, working efficiency, and service life.
Junjie Meng +5 more
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Misalignments are unavoidable in most applications of the planetary roller screw mechanism (PRSM) due to many potential causes. However, the effect of screw misalignments on the contact characteristics for the PRSM have not been thoroughly investigated ...
Junjie Meng +5 more
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Research progress of helicopter noise suppression technology based on materials/structures
Helicopter has achieved rapid development and wide application in various fields, due to its unique flight mode. However, the noise is also a particular feature of the helicopter, which people cannot bear without protection.
LI Wenzhi, CAO Yaoqin, HE Zhiping
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Examining the stability derivatives of a compound helicopter [PDF]
Some helicopter manufacturers are exploring the compound helicopter design as it could potentially satisfy the new emerging requirements placed on the next generation of rotorcraft.
Ferguson, Kevin, Thomson, Douglas
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Maneuverability assessment of a compound helicopter configuration [PDF]
The compound helicopter design could potentially satisfy the new emerging requirements placed on the next generation of rotorcraft. The main benefit of the compound helicopter is its ability to reach speeds that significantly surpass those of the ...
Ferguson, Kevin, Thomson, Douglas
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Supervised Control of a Flying Performing Robot using its Intrinsic Sound [PDF]
We present the current results of our ongoing research in achieving efficient control of a flying robot for a wide variety of possible applications. A lightweight small indoor helicopter has been equipped with an embedded system and relatively simple ...
Gongora, Mario A. +3 more
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A Novel Active Vibration Control Method for Helicopter Fuselages Based on Diffusion Cooperation
Against the background of low-frequency vibration control for a helicopter fuselage in flight, active control of structural response (ACSR) has been employed for vibration control design.
Jingliang Li, Yang Lu
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Modelling the helicopter rotor aerodynamics at forward flight with free wake model and URANS method
The presented work is dedicated to the numerical study of the aerodynamic characteristics of the helicopter rotor. Two approaches to modeling of the rotor are applied: the free wake model developed by the Authors with using steady airfoil characteristics
Yuri Ignatkin +3 more
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Dendrite Refinement and Improved Mechanical Properties of SiC/TiC/Al Hybrid Nanocomposites
Hybrid nano-(SiCp + TiCp)/Al composites were fabricated by liquid ultrasonic assisted semisolid stirring processing. The eutectic silicon of Al matrix changes from acicular to fine granular with addition of nanoparticles and the dendrite size of primary ...
Hui Xie, Jinze Lv
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