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Jian Qin, Zhenquan Zhang, Xuening Song, Shuting Huang, Yanjun Liu and Gang Xue
In order to enhance the power generation efficiency and reliability of wave energy converters (WECs), an enclosed inertial WEC with a magnetic nonlinear stiffness mechanism (nonlinear EIWEC) is proposed in this paper. A mathematical model of the nonlinea...
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Katsumi Watanabe, Takuma Shibata and Masazumi Ueba
In recent years, the use of fixed-wing Unmanned Aerial Vehicles (UAVs) has expanded, and the use of fixed-wing UAVs is expected to expand due to their usefulness for long-range operations. Different from manned aircraft, no provision is required regardin...
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Michal Welcer, Nezar Sahbon and Albert Zajdel
Modern aviation technology development heavily relies on computer simulations. SIL (Software-In-The-Loop) simulations are essential for evaluating autopilots and control algorithms for multi-rotors, including drones and other UAVs (Unmanned Aerial Vehicl...
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Vincenzo Cusati, Salvatore Corcione, Fabrizio Nicolosi and Qinyin Zhang
The need for environmentally responsible solutions in aircraft technology is now considered the priority for global challenges related to the limited supply of traditional fuel sources and the potential global hazards associated with emissions produced b...
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Alexios Alexiou, Ioannis Kolias, Nikolaos Aretakis and Konstantinos Mathioudakis
An approach for preliminary aero-engine design, incorporating a mean-line code for the design of axial-flow, multi-stage compressors, is presented. The compressor mean-line code is developed and integrated within a framework for the preliminary design an...
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Yuan Zhang, Xuanyu Chen, Peng Xu, Xizeng Zhao, Ould el Moctar and Changqing Jiang
The development and utilization of wave energy, heralded as a potential leading source of clean energy worldwide, have garnered considerable attention from the global research community. Among the diverse array of wave energy converters (WECs), the raft-...
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Zhenquan Zhang, Jian Qin, Dengshuai Wang, Shuting Huang, Yanjun Liu and Gang Xue
In this paper, a variable damper is proposed to regulate the efficiency of a two-body wave energy converter (WEC) with mechanically driven power take-off (PTO). The variable damper introduces logic constraints into the WEC system, which can be translated...
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Giuseppe Palaia, Karim Abu Salem and Alessandro A. Quarta
This paper proposes a conceptual analysis of the limitations related to the development (and integration) of hybrid?electric propulsion on regional transport aircraft, with the aim to identify a feasibility space for this innovative aircraft concept. Hyb...
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Stavros Kapsalis, Chris Bliamis, Pavlos Kaparos, Pericles Panagiotou and Kyros Yakinthos
The current work investigates the effect of canard geometric characteristics on the performance of a lightweight flying wing Unmanned Aerial Vehicle (UAV), capable of both conventional and Vertical Take-Off and Landing (VTOL) flight. The canards are size...
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Huiling Li and Kun Liu
In order to reduce the dependence on fossil fuels, the concept of distributed electric propulsion (DEP) has been introduced. At present, there are a few studies on the small electric propulsion engines of DEP vertical take-off and landing (VTOL) UAVs. Ac...
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