Results 41 to 50 of about 30,707 (232)
Manoeuvrability assessment of a hybrid compound helicopter configuration [PDF]
, 2014 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 the conventional ...
Ferguson, Kevin, Thomson, Douglas
core
Wind Energy, Volume 29, Issue 5, May 2026.ABSTRACT Yaw engineering models are commonly used as add‐ons to the industrial blade element momentum (BEM) framework to improve load and power predictions by accounting for the skewed wake effect. However, existing yaw engineering models show noticeable limitations in accurately predicting the induced velocity distribution across the blade span.
Haoyuan Sun, Andrea Sciacchitano, Wei Yu
wiley +1 more source
MODELING, CONTROL AND NAVIGATION OF AN AUTONOMOUS QUAD-ROTOR HELICOPTER [PDF]
Interdisciplinary Description of Complex Systems, 2016 Autonomous outdoor quad-rotor helicopters increasingly attract the attention of potential researchers. Several structures and configurations have been developed to allow 3D movements.
Damir Šoštarić
doaj +1 more source
Signal Enhancement of Helicopter Rotor Aerodynamic Noise Based on Cyclic Wiener Filtering
Applied Sciences, 2022 The research on helicopter rotor aerodynamic noise becomes imperative with the wide use of helicopters in civilian fields. In this study, a signal enhancement method based on cyclic Wiener filtering was proposed given the cyclostationarity of rotor ...
Chengfeng Wu +3 more
doaj +1 more source
Development of an unsteady aerodynamics model to improve correlation of computed blade stresses with test data [PDF]
, 1985 A reliable rotor aeroelastic analysis operational that correctly predicts the vibration levels for a helicopter is utilized to test various unsteady aerodynamics models with the objective of improving the correlation between test and theory.
Gangwani, S. T.
core +1 more source
Numerical modelling of the aerodynamic interference between helicopter and ground obstacles [PDF]
, 2017 Helicopters are frequently operating in confined areas where the complex flow fields that develop in windy conditions may result in dangerous situations.
Barakos, George N. +3 more
core +1 more source
The Trajectory and Structural Integrity of Aerially Deployed Manufactured Baits for Canid Control
Ecological Management &Restoration, Volume 27, Issue 2, May 2026.ABSTRACT In Australia, poison baits are aerially deployed in remote and inaccessible areas to mitigate invasive animal impacts. Program efficacy and compliance with mandated distance restrictions require accurate bait distribution but deployment accuracy and precision have not been evaluated for Doggone manufactured baits.
Elly Gooch +6 more
wiley +1 more source
Авіаційно-космічна техніка та технологія, 2021 Under certain conditions of a helicopter flight, the main rotor can exert a rather strong effect on the tail rotor, changing its traction and power characteristics.
Михайло Юрійович Кибальний +3 more
doaj +1 more source
Advanced Intelligent Systems, Volume 8, Issue 3, March 2026.This review systematically analyzes deformable drones, including extendable, foldable, and tilting configurations, along with nature‐inspired flapping rotorcraft. By classifying deformation principles and structural mechanisms, design trade‐offs, functional capabilities, and future development potential are highlighted.
Ju‐Hee Lee +9 more
wiley +1 more source
Active twist of model rotor blades with D-spar design [PDF]
Transport, 2007 The design methodology based on the planning of experiments and response surface technique has been developed for an optimum placement of Macro Fiber Composite (MFC) actuators in the helicopter rotor blades.
A. Kovalovs, E. Barkanov, S. Gluhihs
doaj +3 more sources