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Yu Tian, Luofeng Wang, Zhongliang Zhou and Renliang Chen
In order to reveal the mechanism of Category II rotor-body-slung-load coupled oscillation (RBSLCO) with the frequency range of 2.5~8 Hz, a novel nonlinear rigid-elastic coupled model is presented for the helicopter and slung load system (HSLS) with expli...
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Denis Kotarski, Petar Piljek, Marko Pranjic and Josip Kasac
This paper presents a novel concept of a modular multirotor aerial robotic platform that can be used for specific profiles of heavy payload missions. A comprehensive mathematical model of the multirotor unmanned aerial vehicle (UAV) is presented, which i...
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Hyeok-Min Kwon and Dong-Kyu Lee
In case of a fire at a high-rise building which is densely populated, an extension ladder is used to rescue people who have yet to evacuate to a safe place away from the fire, whereas those who are stranded at a height that is unreachable with the ladder...
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Federica Farisco, Luisa Castellanos, Jakob Woisetschläger and Wolfgang Sanz
Lean premixed combustion technology became state of the art in recent heavy-duty gas turbines and aeroengines. In combustion chambers operating under fuel-lean conditions, unsteady heat release can augment pressure amplitudes, resulting in component engi...
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Oleksandr Solovey,Andrii Ben,Sergiy Dudchenko,Pavlo Nosov
Pág. 48 - 56
The aim of the work is to develop a method for optimal control of handling operations with heavy lift cargo on sea vessels. Based on the review of scientific research in the field of loading heavy lift cargo, priority directions for improving the automat...
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Natig Seyidahmadov
Pág. 17 - 21
To increase the efficiency of gas-lift oil and gas production, it is necessary to improve the operation of compressor stations, namely, to increase the reliability of the gas-motor piston compressor units installed in them. It is found that one of the vu...
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Julian Kullick and Christoph M. Hackl
Deep geothermal energy systems employ electric submersible pumps (ESPs) in order to lift geothermal fluid from the production well to the surface. However, rough downhole conditions and high flow rates impose heavy strain on the components, leading to fr...
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Ge Fei,Zaheer Ahmad Babar,Guo Sheng-li,Chen Yun,Zhi Xie-fei,Tang Wei-wei
Pág. 231 - 241
South Asian monsoon occurs in most parts of the Indian subcontinent including Pakistan, India and Bangladesh during the period June to September of every year. These winds rich in moisture are forced to lift by the Himalayas causing extreme precipitation...
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Sutthiphong Srigrarom and Woei-Leong Chan
In this paper, an ornithopter prototype that mimics the flapping motion of bird flight is developed, and the lift and thrust generation characteristics of different wing designs are evaluated. This project focused on the spar arrangement and material use...
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Ryan M. Robinson, Curt S. Kothera and Norman M. Wereley
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