Results 51 to 60 of about 7,948 (233)
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
Earth's Future, Volume 14, Issue 5, May 2026.Abstract As global warming intensifies, Solar Radiation Modification (SRM) has drawn increasing scientific and policy interest as a potential means to temporarily offset climate impacts. This review examines past SRM (or SRM‐like) field experiments, categorized into three primary techniques: Tropospheric and Stratospheric Aerosol Injection (SAI ...
I. Hernandez‐Galindo +5 more
wiley +1 more source
Analytical modeling of rotor-structure coupling using modal decomposition for the structure and the blades. [PDF]
, 2014 This paper presents a linear semi-analytical model that is able to predict complex rotor-structure coupling phenomena and their stability. It was primarily designed so as to gain a better physical understanding of this kind of aeroelastic instabilities ...
ROUCOULES, Lionel +3 more
core
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
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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
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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
Modelling the aerodynamics of coaxial helicopters : from an isolated rotor to a complete aircraft
, 2008 This paper provides an overview of recent research on the aerodynamics of coaxial rotors at the Rotorcraft Aeromechanics Laboratory of the Glasgow University Rotorcraft Laboratories.
Brown, R.E. +5 more
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Advances in Mechanical Engineering, 2016 In recent years, unmanned aerial vehicles have gained increasing popularity. They are employed in many applications due to its features in terms of flexibility, low cost, and small size.
Jialiang Wang +5 more
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THE EFFECT OF DIFFERENT OPTIONS OF BLADES MAIN ROTOR ON THE X-SHAPED TAIL ROTOR OF THE MI-171 LL
Научный вестник МГТУ ГА, 2018 This paper describes the effect of different rotor blades on the X-shaped tail rotor of the Mi-171 LL, observed conducting flight tests. The tests were carried out on the same helicopter in the similar atmospheric conditions.The objective of the tests ...
V. A. Ivchin +2 more
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