NUMERICAL SIMULATION OF MODEL HELICOPTER ROTOR IN HOVER by PIOTR DOERFFER, OSKAR SZULC

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Development of an Autonomous Underwater Helicopter with High Maneuverability by Zhikun Wang, Xun Liu, Haocai Huang, Ying Chen

“…In this paper, a new design for a high-maneuverability disc-shaped AUV is proposed, namely, the Autonomous Underwater Helicopter (AUH). We designed the AUH’s propulsion system through dynamic analysis based on the unique disc shape. …”
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SIMULATION AND OPTIMIZATION OF ULTRALIGHT HELICOPTER AERODYNAMIC CHARACTERISTICS by Viktor P. Zharov, Sergey P. Lisin

Subjects: “…ultralight helicopter…”
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Simulation of Flow around Isolated Helicopter Fuselage by Garipov A.O., Nikolaev E.I., Romanova E.V., Mikhailov S.A., Kusyumov A.N., Barakos G.

“…Low fuselage drag has always been a key target of helicopter manufacturers. Therefore, this paper focuses on CFD predictions of the drag of several components of a typical helicopter fuselage. …”
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STUDY ON SAFETY TECHNOLOGY SCHEME OF THE UNMANNED HELICOPTER by Z. Lin, W. Zhang, S. Chen, T. Liu, Y. Yao

“…Nowadays the unmanned helicopter is widely used for its' unique strongpoint, however, the high failure rate of unmanned helicopter seriously limits its further application and development. …”
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Research on Rapid Assembly Technology of Helicopter Transmissions by Haiwei Wang, Lulu Li, Sheng Yuan

“…Research and application of rapid assembly technology can widely improve the design efficiency of helicopter transmissions. An assembly model of helicopter transmissions is presented by introducing Geometric Constraint Graph (GCG) method. …”
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Study on the Motion Stability of the Autonomous Underwater Helicopter by Yuan Lin, Jin Guo, Haonan Li, Hai Zhu, Haocai Huang, Ying Chen

“…The hydrodynamic performance of a novel hovering autonomous underwater vehicle, the autonomous underwater helicopter (AUH), with an original disk-shaped hull (HG1) and an improved fore–aft asymmetric hull (HG3), is investigated by means of computational fluid dynamics with the adoption of overlapping mesh method. …”
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Helicopter Emergency Medical Service in the Republic of Croatia by Andrija Vidović, Sanja Steiner

Subjects: “…helicopter…”
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Analysis of Helicopter Activities in Forest Fire-Fighting by Enrico Tesi, Niccolò Brachetti Montorselli, Enrico Marchi, Francesco Neri, Fabio Fabiano

“…The aim of this study is to compare the helicopter’s forest fire-fighting activity in Tuscany (central Italy) over two periods: between 1998–2000 and 2001–2005 when five and ten helicopters were respectively assigned. …”
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Civil academic education of Helicopter Engineering in Poland by Wiesław Łucjanek

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IMPACT OF AN UNDERSLUNG LOAD ON A HELICOPTER CONTROLLABILITY by G. N. Babenko, V. V. Efimov, V. A. Ivchin

“…This article is aimed at finding the causes of controllability variations of a helicopter while transporting sling load.The maximum angular acceleration taken by the helicopter at similar controller displacement at different flight speeds was taken as a quantity characteristic of controllability efficiency to study the load impact on the helicopter cont- rollability.This article offers research results obtained with the use of the НеliСargо software. …”
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A VORTEX MODEL OF A HELICOPTER ROTOR by Valentin BUTOESCU

“…A vortex model of a helicopter rotor is presented. Each blade of the rotor has three degrees of freedom: flapping, lagging and feathering. …”
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An Analytical Method for Coaxial Helicopter Ground Resonance by Liu Xiangyi, Liu Shuyan, Wu Jing, Song Shansong, Hu Guocai

“…A time-frequency analytical method is presented to analyze physical mechanism of coaxial helicopter ground resonance. Eigenvalue calculation and numerical integration of disturbance equations of motions are used to obtain modal characters and time-domain response characters of coaxial helicopter ground resonance, and the interaction between rotors and body is revealed according to response of various DOFs. …”
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Simulation of Longitudinal Stability Of Helicopter In Forward Flight by Kareem Jawad Kadhim, Abid Noor Jameel shahid

Subjects: “…Helicopter, UH-60, forward flight, hover, longitudinal, trim, dynamic stability…”
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CFD Aided Ship Design and Helicopter Operation by Weixing Yuan, Alanna Wall, Eric Thornhill, Chris Sideroff, Mahmoud Mamou, Richard Lee

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Reduction of torque pulsation in ultralight helicopter transmission by Vitaly Dudnik

Subjects: “…ultralight helicopter…”
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Geometric constraints system formation for helicopter construction by Dergachev A.N., Klychnikova M.V.

Subjects: “…helicopter…”
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The Vibration Impact Determination of the Helicopter Structural Components by Khaksar Zeinab, Anavatti Sreenatha, Shankar Krishna, Ceruti Alessandro, Pratt Heath

“…This paper presents the determination of the vibration impact of the helicopter structural components and skin repairs in terms of frequency characteristics. …”
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Exploring Martian Magnetic Fields with a Helicopter by Anna Mittelholz, Lindsey Heagy, Catherine L. Johnson, Jonathan Bapst, Jared Espley, Abigail A. Fraeman, Benoit Langlais, Robert Lillis, William Rapin

“…The era of helicopter-based surveys on Mars has already begun, creating opportunities for future aerial science investigations with a range of instruments. …”
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Research on an Autonomous Underwater Helicopter with Less Thrusters by Zichen Liu, Jing Zhou, Zhikun Wang, Haifu Zhou, Jie Chen, Xuanshuo Hu, Ying Chen

Subjects: “…autonomous underwater helicopter…”
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