Works matching Helicopters

Results: 5000

Fuel Weight Determination of Ultralight and Very Light Helicopters at the Preliminary Design Stage.

Published in:

Transactions on Aerospace Research, 2022, v. 22, n. 3, p. 48, doi. 10.2478/tar-2022-0016

By:

Dudnik, Vitaly;
Karabut, Victor

Publication type:

Article

Why Does the Attack Helicopter Have More Survival Ability than the Armed Utility Helicopter?

Published in:

Aeronautical Science Bulletins / Repüléstudományi Közlemények, 2022, v. 34, n. 3, p. 167, doi. 10.32560/rk.2022.3.11

By:

Szilvássy, László

Publication type:

Article

ATTENUATION AVERAGE SIGNAL POWER HELICOPTER ANTENNA SYSTEM.

Published in:

Electronics & Control Systems, 2015, v. 44, n. 2, p. 11

By:

Ivanov, A. V. A.;
Zadorozhniy, A. S.

Publication type:

Article

Crack of a helicopter main rotor actuator attachment: failure analysis and lessons learned.

Published in:

Fracture & Structural Integrity, 2013, n. 26, p. 104, doi. 10.3221/IGF-ESIS.26.11

By:

Allegrucci, L.;
De Paolis, F.;
Coletta, A.;
Bernabei, M.

Publication type:

Article

Power method for calculating the far acoustic field of the helicopter lift rotor.

Published in:

Journal of Engineering Physics & Thermophysics, 2011, v. 84, n. 3, p. 599, doi. 10.1007/s10891-011-0511-y

By:

Samokhin, V.

Publication type:

Article

Influence of Engine Dynamic Characteristics on Helicopter Handling Quality in Hover and Low-Speed Forward Flight.

Published in:

Aerospace (MDPI Publishing), 2024, v. 11, n. 1, p. 34, doi. 10.3390/aerospace11010034

By:

Wei, Yuan;
Chen, Renliang;
Yuan, Ye;
Wang, Luofeng

Publication type:

Article

Multi‐aspect micro‐Doppler signatures for attitude‐independent L/N quotient estimation and its application to helicopter classification.

Published in:

IET Radar, Sonar & Navigation (Wiley-Blackwell), 2017, v. 11, n. 4, p. 701, doi. 10.1049/iet-rsn.2016.0271

By:

Zhang, Rui;
Li, Gang;
Clemente, Carmine;
Soraghan, John J.

Publication type:

Article

Validation of a Numerical Fluid Flow Analysis for a Helicopter Tail Rotor Blade Using a Subsonic Wind Tunnel.

Published in:

Macromolecular Symposia, 2020, v. 389, n. 1, p. 1, doi. 10.1002/masy.201900099

By:

Voicu, Andrei Daniel;
Hadăr, Anton;
Vlăsceanu, Daniel

Publication type:

Article

Helicopter noise footprint prediction in unsteady maneuvers.

Published in:

International Journal of Aeroacoustics, 2017, v. 16, n. 3, p. 165, doi. 10.1177/1475472X17709927

By:

Gennaretti, Massimo;
Bernardini, Giovanni;
Serafini, Jacopo;
Anobile, Alessandro;
Hartjes, Sander

Publication type:

Article

Ultralight and Very Light Helicopter Rotor Data.

Published in:

Transactions on Aerospace Research, 2023, v. 2023, n. 2, p. 17, doi. 10.2478/tar-2023-0008

By:

Dudnik, Vitaly;
Karabut, Victor

Publication type:

Article

Vibroacoustic Helicopter Impact on Elevated Helipad.

Published in:

Transactions on Aerospace Research, 2023, v. 2023, n. 1, p. 1, doi. 10.2478/tar-2023-0001

By:

Cieślak, Sławomir;
Krzymień, Wiesław

Publication type:

Article

BALLISTIC PROTECTION SYSTEM FOR MILITARY HELICOPTERS.

Published in:

Scientific Bulletin 'Mircea cel Batran' Naval Academy, 2019, v. 22, n. 1, p. 1, doi. 10.21279/1454-864X-19-I1-038

By:

ADETU, Cătălin;
ADETU, Alina-Elena

Publication type:

Article

THE MODAL ANALYSIS OF A CARBON FIBER HELICOPTER BLADE.

Published in:

Journal of Industrial Design & Engineering Graphics, 2015, v. 10, n. 2, p. 23

By:

Zaharia, Sebastian Marian

Publication type:

Article

LIFETIME DETERMINATION OF ULTRALIGHT HELICOPTER BLADES.

Published in:

Transport Problems: an International Scientific Journal, 2024, v. 19, n. 3, p. 81, doi. 10.20858/tp.2023.19.3.07

By:

DUDNIK, Vitaly

Publication type:

Article

Multilayer hierarchical control for robotic coax-helicopter based on the H∞ robustness and mixing control scheme.

Published in:

Advances in Mechanical Engineering (Sage Publications Inc.), 2017, v. 9, n. 10, p. 1, doi. 10.1177/1687814017720088

By:

Yan-li Chen;
Jing-chun Qin;
Zhi-yan Dong;
Shun-an Liu;
Heng-liang Zheng

Publication type:

Article

MODELING, CONTROL AND NAVIGATION OF AN AUTONOMOUS QUAD-ROTOR HELICOPTER.

Published in:

Interdisciplinary Description of Complex Systems, 2016, v. 14, n. 3, p. 322, doi. 10.7906/indecs.14.3.5

By:

otarić, Damir

Publication type:

Article

Event-driven PID control of autonomous quadrotor helicopters.

Published in:

Journal of Algorithms & Computational Technology, 2018, v. 12, n. 2, p. 159, doi. 10.1177/1748301818761134

By:

Ye, Qian

Publication type:

Article

AS-350B könnyű-többcélú helikopter a Magyar Légierőben.

Published in:

Aeronautical Science Bulletins / Repüléstudományi Közlemények, 2023, v. 35, n. 3, p. 117, doi. 10.32560/rk.2023.3.8

By:

Zsolt, Lucz

Publication type:

Article

New Progress in Helicopter Rotor Wake Research.

Published in:

Transactions of Nanjing University of Aeronautics & Astronautics, 2019, v. 36, n. 1, p. 36, doi. 10.16356/j.1005-1120.2019.01.004

By:

XU Guohua;
SHI Yongjie;
ZHAO Qijun

Publication type:

Article

Manufacturing and Testing of a Variable Chord Extension for Helicopter Rotor Blades.

Published in:

Actuators, 2022, v. 11, n. 2, p. 53, doi. 10.3390/act11020053

By:

Balzarek, Christoph;
Kalow, Steffen;
Riemenschneider, Johannes;
Rivero, Andres

Publication type:

Article

IMPROVING THE EFFICIENCY OF DEVELOPMENT PROCESS OF AUTOMATED HELICOPTER FLYING.

Published in:

Electronics & Control Systems, 2014, v. 3, n. 41, p. 97, doi. 10.18372/1990-5548.41.7807

By:

Sineglazov, V. M.;
Shmelev, Ju. M.

Publication type:

Article

ESTIMATION OF HELICOPTER PILOTS TRAINING EFFICIENCY IN THE SIMULATOR.

Published in:

Electronics & Control Systems, 2013, v. 4, n. 38, p. 104, doi. 10.18372/1990-5548.38.7293

By:

Sineglazov, V. M.;
Shmelev, Ju. M.

Publication type:

Article

Optimal Sensor Suite Selection for Helicopter Enhanced Vision in All- Weather-All-Environment Operation Using Multi Criteria Decision Making Techniques.

Published in:

Nigerian Journal of Technology, 2021, v. 40, n. 5, p. 861, doi. 10.4314/njt.v40i5.12

By:

Ubadike, O. C.;
Anabi, H. K.;
Okafor, E. G.;
Bonet, M. U.;
Jemitola, P. O.;
Shinkafi, A. A.

Publication type:

Article

Effectivity of Hypergeometric Function Application in the Numerical Simulation of the Helicopter Rotor Blades Theory.

Published in:

Journal of Mechanical Engineering / Strojniški Vestnik, 2010, v. 56, n. 1, p. 18

By:

Bekrić, Dragoljub;
Mitrović, Ćaslav;
Cvetković, Dragan;
Bengin&1, Aleksandar

Publication type:

Article

Formal Verification of Helicopter Automatic Landing Control Algorithm in Theorem Prover Coq.

Published in:

International Journal of Performability Engineering, 2018, v. 14, n. 9, p. 1947, doi. 10.23940/ijpe.18.09.p2.19471957

By:

Xi Chen;
Gang Chen

Publication type:

Article

Visual servoing with deep reinforcement learning for rotor unmanned helicopter.

Published in:

International Journal of Advanced Robotic Systems, 2022, v. 19, n. 2, p. 1, doi. 10.1177/17298806221084825

By:

Hu, Chunyang;
Cao, Wenping;
Ning, Bin

Publication type:

Article

Hardware-in-the-Loop simulation algorithm for helicopter rotor time-varying echo signals.

Published in:

Systems Science & Control Engineering, 2021, v. 9, n. 1, p. 479, doi. 10.1080/21642583.2021.1940350

By:

Chen, Shihong

Publication type:

Article

Military Helicopters in Czechoslovak Aeroclubs Between 1963–1974.

Published in:

Czech-Polish Historical & Pedagogical Journal, 2022, v. 14, n. 1/2, p. 18, doi. 10.5817/cphpj-2022-002

By:

Hájek, Vojtěch

Publication type:

Article

The Aerodynamic Interaction Effects between the Rotor and Fuselage on the Drag Performance of a Civil Helicopter in Forward Flight.

Published in:

Applied Sciences (2076-3417), 2023, v. 13, n. 13, p. 7376, doi. 10.3390/app13137376

By:

Shi, Wenbo;
Zhang, Heng;
Li, Yuanxiang

Publication type:

Article

Technological Aspects of a Reparation of the Leading Edge of Helicopter Main Rotor Blades in Field Conditions.

Published in:

Applied Sciences (2076-3417), 2022, v. 12, n. 9, p. N.PAG, doi. 10.3390/app12094249

By:

Sałaciński, Michał;
Puchała, Krzysztof;
Leski, Andrzej;
Szymczyk, Elżbieta;
Hutsaylyuk, Volodymyr;
Bednarz, Arkadiusz;
Synaszko, Piotr;
Kozera, Rafał;
Olkowicz, Klaudia;
Głowacki, Dominik

Publication type:

Article

Revising of the Near Ground Helicopter Hover: The Effect of Ground Boundary Layer Development.

Published in:

Applied Sciences (2076-3417), 2021, v. 11, n. 21, p. 9935, doi. 10.3390/app11219935

By:

Andronikos, Theologos;
Papadakis, George;
Riziotis, Vasilis;
Voutsinas, Spyros

Publication type:

Article

Helicopter Safe Landing Trajectory after Main Rotor Actuator Failures.

Published in:

Applied Sciences (2076-3417), 2020, v. 10, n. 8, p. 2917, doi. 10.3390/app10082917

By:

Wang, Yunjie;
Jiang, Chen;
Zhang, Yuwen;
Wang, Haowen

Publication type:

Article

Nonlinear Modeling and Flight Validation of a Small-Scale Compound Helicopter.

Published in:

Applied Sciences (2076-3417), 2019, v. 9, n. 6, p. 1087, doi. 10.3390/app9061087

By:

Wu, Meiliwen;
Chen, Ming

Publication type:

Article

A Study on Nonlinear Model Predictive Control for Helicopter/Engine with Variable Rotor Speed Based on Linear Kalman Filter.

Published in:

International Journal of Turbo & Jet-Engines, 2022, v. 39, n. 3, p. 357, doi. 10.1515/tjj-2019-0016

By:

Wang, Yong;
Zheng, Qiangang;
Zhang, Haibo;
Gao, Yuan

Publication type:

Article

A METHODOLOGY FOR THE ANALYSES OF UNSTEADY FLOWFIELDS AROUND FORWARD FLYING HELICOPTER ROTORS.

Published in:

Journal of Aeronautics & Space Technologies / Havacilik ve Uzay Teknolojileri Dergisi, 2018, v. 11, n. 2, p. 71

By:

GEÇGEL, Murat;
NACAKLI, Yavuz

Publication type:

Article

DESIGN OF FRACTIONAL ORDER SLIDING MODE CONTROLLER FOR 2 DOF HELICOPTER SYSTEM.

Published in:

Journal of Aeronautics & Space Technologies / Havacilik ve Uzay Teknolojileri Dergisi, 2018, v. 11, n. 2, p. 35

By:

KAVURAN, Gurkan;
YEROGLU, Celaleddin

Publication type:

Article

Planetary bearing defect detection in a commercial helicopter main gearbox with vibration and acoustic emission.

Published in:

Structural Health Monitoring, 2018, v. 17, n. 5, p. 1192, doi. 10.1177/1475921717738713

By:

Elasha, Faris;
Greaves, Matthew;
Mba, David

Publication type:

Article

A Novel Condition Indicator for Bearing Fault Detection Within Helicopter Transmission.

Published in:

Journal of Vibration Engineering & Technologies, 2021, v. 9, n. 2, p. 215, doi. 10.1007/s42417-020-00220-7

By:

Elasha, Faris;
Li, Xiaochuan;
Mba, David;
Ogundare, Adebayo;
Ojolo, Sunday

Publication type:

Article

Simple Learning-Based Robust Trajectory Tracking Control of a 2-DOF Helicopter System.

Published in:

Electronics (2079-9292), 2022, v. 11, n. 13, p. N.PAG, doi. 10.3390/electronics11132075

By:

Reyhanoglu, Mahmut;
Jafari, Mohammad;
Rehan, Muhammad

Publication type:

Article

共轴双旋翼直升机卫星通信小型化终端设计与验证.

Published in:

Telecommunication Engineering, 2022, v. 62, n. 4, p. 431, doi. 10.3969/j.issn.1001-893x.2022.04.004

By:

徐远超;
李悦

Publication type:

Article

FLIGHT LIMITATIONS IMPOSED ON SINGLE ROTOR AND COAXIAL HELICOPTERS BY THE LIFT EQUATION.

Published in:

ANZIAM Journal, 2023, v. 65, n. 1/2, p. 135, doi. 10.1017/S1446181123000081

By:

MALDON, B.;
MEYLAN, MICHAEL H.

Publication type:

Article

PROTECTIVE EFFECT OF HELMET GENTEX HGO-56/P ON HEARING LOSS AMONG MILITARY HELICOPTER PILOTS.

Published in:

Sigurnost, 2022, v. 64, n. 1, p. 9

By:

Barčan, Tomislav;
Belošević, Ljiljana;
Orehovec, Biserka

Publication type:

Article

Sightseeing Accidents with Helicopters and Fixed-Wing Aircraft.

Published in:

Aerospace Medicine & Human Performance, 2022, v. 93, n. 6, p. 532, doi. 10.3357/AMHP.6000.2022

By:

de Voogt, Alexander J.;
Hummel Hohl, Caio;
Kalagher, Hilary

Publication type:

Article

Evaluation of the Helicopter Emergency Breathing Apparatus on Egress Performance.

Published in:

Aerospace Medicine & Human Performance, 2020, v. 91, n. 12, p. 962, doi. 10.3357/AMHP.5704.2020

By:

King, Michael;
Sanli, Elizabeth;
Mugford, Kaitlin;
Martina, Stefanie;
Brown, Robert;
Carnahan, Heather

Publication type:

Article

Diving Accident Evacuations by Helicopter and Immersion Pulmonary Edema.

Published in:

Aerospace Medicine & Human Performance, 2020, v. 91, n. 10, p. 806, doi. 10.3357/AMHP.5563.2020

By:

Corgie, Laëtitia;
Huiban, Nicolas;
Pontier, Jean-Michel;
Brocq, François-Xavier;
Boulard, Jean-François;
Monteil, Marc

Publication type:

Article

Calculation of Induced Velocity in Normal Operating Conditions for Vertical Climb and Hover, Autorotation Regime, Vortex Ring State, and Forward Flight Regime for the Sikorsky S-70 Black Hawk Helicopter.

Published in:

INCAS Bulletin, 2025, v. 17, n. 1, p. 33, doi. 10.13111/2066-8201.2025.17.1.3

By:

MIHAILA, Florin;
FUIOREA, Ion

Publication type:

Article

基于自适应干扰观测器的无人直升机模型参考跟踪控制.

Published in:

Journal of Nanjing University of Aeronautics & Astronautics / Nanjing Hangkong Hangtian Daxue Xuebao, 2023, v. 55, n. 6, p. 977, doi. 10.16356/j.1005‑2615.2023.06.004

By:

潘世豪;
王婷;
张浩然;
李涛

Publication type:

Article

直升机气动噪声抑制与飞行测试研究进展.

Published in:

Journal of Nanjing University of Aeronautics & Astronautics / Nanjing Hangkong Hangtian Daxue Xuebao, 2023, v. 55, n. 2, p. 169, doi. 10.16356/j.1005‑2615.2023.02.001

By:

邓景辉;
朱文庆;
张威;
曹荣富

Publication type:

Article

基于短暂丢失参考信号预测的无人直升机轨迹跟踪控制.

Published in:

Journal of Nanjing University of Aeronautics & Astronautics / Nanjing Hangkong Hangtian Daxue Xuebao, 2022, v. 54, n. 6, p. 1030, doi. 10.16356/j.1005⁃2615.2022.06.004

By:

杨静雯;
李涛;
杨欣;
费树岷

Publication type:

Article

基于Simulink 的某型无人直升机舰面悬停特性分析.

Published in:

Journal of Nanjing University of Aeronautics & Astronautics / Nanjing Hangkong Hangtian Daxue Xuebao, 2021, v. 53, n. 3, p. 408, doi. 10.16356/j.1005⁃2615.2021.03.012

By:

唐宏清;
王华明

Publication type:

Article