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Hao Qi, Shi-Jie Cao, Jia-Yue Wu, Yi-Ming Peng, Hong Nie and Xiao-Hui Wei
The tail-sitter VTOL UAV boasts not only high-speed cruising and air hovering capabilities, but also its unique tail-sitting vertical takeoff and landing and hovering attitude enable aerial operations with an exceptionally small cross-sectional area. Thi...
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Marek Ce?kovic, Martin Schrötter, Róbert Hunady, Pavol Kurdel and Natália Gecejová
A helicopter in flight can be considered an unstable dynamic system with many unwanted vibrations originating from multiple sources, such as the operation of the engines and individual components. These vibrations cause the degradation of the structural ...
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Saba Al-Rubaye, Antonios Tsourdos and Kamesh Namuduri
Advanced air mobility (AAM) is an emerging sector in aviation aiming to offer secure, efficient, and eco-friendly transportation utilizing electric vertical takeoff and landing (eVTOL) aircraft. These vehicles are designed for short-haul flights, transpo...
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Judith Rosenow, Gong Chen, Hartmut Fricke and Yanjun Wang
Increasing complexity due to a constantly growing number of target functions turns air traffic trajectory optimization into a multidimensional and nonlinear task that in turn necessitates a focus on the case-sensitive most important criteria. The criteri...
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Tong Shen, Zhan Tu, Daochun Li, Zi Kan and Jinwu Xiang
This study focuses on the aerodynamics of the smallest flying insects? bristled wings. We measured and analyzed wing morphological data from 38 specimens of Mymaridae. Bristled wing flight was numerically simulated at Reynolds numbers from 1 to 80. The a...
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Yingtao Zhu, Bingjie Zhu, Xixiang Yang, Zhongxi Hou and Jianan Zong
An energy management strategy for a series hybrid electric propulsion system designed for a fixed-wing vertical take-off and landing (VTOL) aircraft is presented in this paper. The proposed method combines an ideal operating line (IOL) and fuzzy logic. F...
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Jiyu Xia and Zhou Zhou
The transition flight of tilt-propulsion UAV is a complex and time-varying process, which leads to great challenges in the design of a stable and robust controller. This work presents a unified model predictive controller, which can handle the full envel...
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Pan Zhou, Renliang Chen, Ye Yuan and Cheng Chi
The aerodynamic interference between the different components of quad-tiltrotor (QTR) aircraft were considered to analyze its influence on trim characteristics. A comprehensive method with the fixed-wake model was developed for multiple aerodynamic inter...
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Jiahao Guo and Zhou Zhou
The distributed propulsion system applied to the vertical take-off and landing aircraft must maintain the high performance in both hover and cruise flight. The gap of the power unit has an adverse effect on the distributed ducted fan system, especially i...
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Tielin Ma, Xiangsheng Wang, Nanxuan Qiao, Zilun Zhang, Jingcheng Fu and Mingmin Bao
The distributed electric propulsion (DEP) eVTOL aircraft has gained rising interest for its promising potential in high-speed cruise compared with conventional tilt-rotor configuration. The aerodynamic interference of the DEP units and wing could become ...
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