Bench Performance Test Research of Gear Oil of 80W-140 Type Unmanned Helicopter Main Gearbox
Jixie chuandong, 2022 In order to realize the localization of unmanned helicopter gear oil，the influence of different performance gear oil on gearbox performance is clarified，so as to improve the reliability and service life of gearbox scientifically.
Hongtao Huang +5 more
doaj
Autonomous Cargo Transport System for an Unmanned Aerial Vehicle, using Visual Servoing [PDF]
Journal of Systemics, Cybernetics and Informatics, 2009 This paper presents the design and testing of a system for autonomous tracking, pickup, and delivery of cargo via an unmanned helicopter. The tracking system uses a visual servoing algorithm and is tested using open loop velocity control of a six degree ...
Noah Kuntz, Paul Oh
doaj
Conversion of a Coaxial Rotorcraft to a UAV—Lessons Learned
AerospaceA coaxial helicopter with a maximum take-off weight of 600 kg was converted to an unmanned aerial vehicle. A minimally invasive robotic actuator system was developed, which can be retrofitted onto the copilot seat of the rotorcraft in a short period of ...
Barzin Hosseini +4 more
doaj +1 more source
Influence of blade aerodynamic model on prediction of helicopter rotor aeroacoustic signatures [PDF]
, 2011 Brown’s vorticity transport model has been used to investigate how the local blade aerodynamic model influences the quality of the prediction of the high-frequency airloads associated with blade–vortex interactions, and thus the accuracy with which the ...
Kelly, Mary E., Brown, Richard
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Parameter Updating of Helicopter Airframe Finite Element Model Based on Response Surface Method
Nanjing Hangkong Hangtian Daxue XuebaoIn order to reduce the deviation between the finite element model of helicopter airframe and the actual model， a helicopter airframe model updating method based on the response surface method is adopted， which uses a hypersurface function to ...
ZHU Yin, HAN Dong
doaj +1 more source
Study on dynamic characteristics of the helicopter main transmission system
Jixie chuandongObjectiveTo identify the main excitation frequencies that cause the vibration of the helicopter main transmission system and reveal the influence of system speed, rotor torque, and rotor lift on the dynamic characteristics of the helicopter main ...
XU Huachao +5 more
doaj
High-Fidelity Optimization Framework for Helicopter Rotors [PDF]
, 2009 An optimization framework for helicopter rotors based on high-fidelity coupled CFD/CSM analyses is presented. For this purpose the optimization software DAKOTA has been linked to a parametric geometry unit, a mesh generation unit and a fluid-structure ...
Imiela, Manfred
core
DYNAMIC MODEL OF THE TEST BENCH FOR HELICOPTER VANES LONGERONS
Advanced Engineering Research, 2007 The dynamic model of the test bench for helicopter vanes longerons are described and studied in the paper. Model was developed to determining a vibration level, which pass to ambient space.
I.V. BOGDANOVA +2 more
doaj
DYNAMIC MODEL OF THE TEST BENCH FOR HELICOPTER VANES LONGERONS
Вестник Донского государственного технического университета, 2018 The dynamic model of the test bench for helicopter vanes longerons are described and studied in the paper. Model was developed to determining a vibration level, which pass to ambient space.
I.V. BOGDANOVA +2 more
doaj
A Study on the Aptitude Test of Helicopter Pilots
Journal of the Korean Society for Aviation and
Aeronautics, 2020 Jong-Pil Kim +2 more
openaire +2 more sources