Results 71 to 80 of about 3,999 (214)
Prediction of the Flight Dynamics of Maneuvering Multirotor Aircraft
International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.A simulation environment is presented that predicts the flight trajectory of a maneuvering multirotor aircraft using a purely physics‐based approach without the need for a priori flight test data. The flight dynamics model determines the motion of the aircraft based on the total loads and commanded motor speeds.
Devin Barcelos +3 more
wiley +1 more source
STUDY ON OPTIMAL CHARACTERISTICS OF TWO-BLADE ROTORS FOR COAXIAL HELICOPTER OF LIGHT TAKE-OFF WEIGHT
Advanced Engineering Research, 2012 The calculations of the rotor with various geometric and linkage parameters are resulted. The hovering coaxial rotor optimal characteristics for the agricultural version of the Byelorussian-Russian helicopter «Brat» are chosen.
Vitaly V. Dudnik, Vladimir A. Udovenko
doaj
Nonlinear Attitude and Altitude Trajectory Tracking Control of a Bicopter UAV in Geometric Framework
Journal of Robotics, Volume 2024, Issue 1, 2024.In this paper, we deal with a Bicopter drone that has two thrusters and two tilting servos. Both the position and attitude dynamics of Bicopter are globally expressed on the Special Euclidean group SE(3). A simple control allocation method is proposed to map between the control wrench and actuator inputs for the Bicopter. A geometric nonlinear attitude
Vijay Reddy Vundela +2 more
wiley +1 more source
STUDY ON OPTIMAL CHARACTERISTICS OF TWO-BLADE ROTORS FOR COAXIAL HELICOPTER OF LIGHT TAKE-OFF WEIGHT
Вестник Донского государственного технического университета, 2018 The calculations of the rotor with various geometric and linkage parameters are resulted. The hovering coaxial rotor optimal characteristics for the agricultural version of the Byelorussian-Russian helicopter «Brat» are chosen.
Vitaly V. Dudnik, Vladimir A. Udovenko
doaj
Development of a CFD model for propeller simulation. [PDF]
, 2016 The article presents a development of numerical model for a single propeller simulation and comparison of obtained results with experimental data available from a test campaign in scale 1:1.
Jóźwik, Krzysztof +3 more
core
Optimization Design and Propulsion System Sizing Methodology of Double‐Layer Staggered Octocopter
International Journal of Aerospace Engineering, Volume 2024, Issue 1, 2024.Small‐scale multirotor drones often require careful consideration of many aspects including the selection of structural parameters and the propulsion system. Double‐layer staggered octocopters (DLSOs) are a type of arrangement with advantages in structural layout and aerodynamic performance compared with other configurations, which can conserve ...
He Zhu +5 more
wiley +1 more source
Jixie chuandong, 2014 The typical structure of the Eckasha-32 helicopter transmission with a combination of the fixed axis gear train and the differential gear train with the character of the single input and double output is stuchied,it’s significant for the development of ...
徐步算 +3 more
doaj
Applying rotorcraft modelling technology to renewable energy research [PDF]
, 2009 The perceived need to reduce mankind's impact on the global climate motivates towards a future society in which a significant proportion of its energy needs will be extracted from the winds and the tides of the planet.
Brown, R.E. +5 more
core
Modelling and Simulation in Engineering, Volume 2024, Issue 1, 2024.Our research focused on investigating the influence of rotor blade tip geometry on the aerodynamic performance of helicopters during hover flight, with the goal of enhancing overall efficiency. Through computational fluid dynamics (CFD) analysis using the Bell 212 helicopter configuration, we evaluated four different blade tip geometries: rectangular ...
Soufiane Stouti +5 more
wiley +1 more source
Recent Efforts Enabling Martian Rotorcraft Missions [PDF]
The Mars Helicopter (MH), launching as a part of the Mars 2020 mission, will begin a new era of planetary exploration. Mars research has historically been conducted through landers, rovers, and satellites.
Johnson, Wayne R. +3 more
core +1 more source