|
|
|
|
|
Jianan Zong, Bingjie Zhu, Zhongxi Hou, Xixiang Yang and Jiaqi Zhai
Electric propulsion technology has attracted much attention in the aviation industry at present. It has the advantages of environmental protection, safety, low noise, and high design freedom. An important research branch of electric propulsion aircraft i...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yanxiong Zhao, Yun Tian and Zhiqiang Wan
The aerodynamic performances and control characteristics of vertical takeoff and landing aircraft will be significantly affected by the ground effect during takeoff and landing. The longitudinal aerodynamic characteristics and main flow features of a fix...
ver más
|
|
|
|
|
|
|
|
|
|
|
Benshan Liu, Yongsheng Gao, Liang Gao, Junming Zhang, Yanhe Zhu, Xizhe Zang and Jie Zhao
Turbojet engines have a slow response and require mechanical assistance to perform vertical take-offs and landings. In this paper, we propose a vertical take-off and landing (VTOL) aircraft that contains one-dimensional thrust vectoring nozzle modules to...
ver más
|
|
|
|
|
|
|
|
|
|
|
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...
ver más
|
|
|
|
|
|
|
|
|
|
|
Alessandro Bacchini and Enrico Cestino
In the last ten years, different concepts of electric vertical take-off and landing aircrafts (eVTOLs) have been tested. This article addresses the problem of the choice of the best configuration. VTOLs built since the fifties are presented and their adv...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yun Jiang and Bo Zhang
A new annular lift fan configuration that has very high lift efficiency is explored by using a numerical scheme. The inlet lip radius and diffuser angle are maximized by semicircle duct walls and the location of the lift fan is moved from the throat to t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yun Jiang and Bo Zhang
A new annular lift fan configuration that has very high lift efficiency is explored by using a numerical scheme. The inlet lip radius and diffuser angle are maximized by semicircle duct walls and the location of the lift fan is moved from the throat to t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yun Jiang and Bo Zhang
The present study aimed at studying the transition of annular lift fan aircraft through computational fluid dynamics (CFD) simulations. The oscillations of lift and drag, the optimization for the figure of merit, and the characteristics of drag, yawing, ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yun Jiang, Bo Zhang and Tao Huang
The present study aimed at assessing a novel annular-ducted fan lift system for VTOL aircraft through computational fluid dynamics (CFD) simulations. The power and lift efficiency of the lift fan system in hover mode, the lift and drag in transition mode...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yun Jiang, Bo Zhang and Tao Huang
-
|
|
|
|
|
|
|
|
|
|
|
Xinglu Xia, Dongli Ma, Liang Zhang, Xing?an Liu and Keran Cong
With the rapid development of vertical takeoff and landing (VTOL) aircraft, the blade design of a propeller suitable for VTOL aircraft with a wide range of operating conditions has become a challenging and popular task. This paper proposes a multi-object...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ho-Sang Jang, Se-Yun Hwang and Jang-Hyun Lee
This study examines the heat flux and convective heat transfer generated when a vertical take-off and landing (VTOL) aircraft takes off and lands on the flight deck of a naval vessel. A procedure for analyzing the convective heat transfer imposed on the ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Johnson O. Imumbhon, Mohammad D. Alam and Yiding Cao
In the design stage of an aircraft, structural analyses are commonly employed to test the integrity of the aircraft components to demonstrate the capability of the structural elements to withstand what they are designed for, as well as predict potential ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhidong Lu, Haichao Hong and Florian Holzapfel
The advancement of electric vertical take-off and landing (eVTOL) aircraft has expanded the horizon of urban air mobility. However, the challenge of generating precise vertical take-off and landing (VTOL) trajectories that comply with airworthiness requi...
ver más
|
|
|
|
|
|
|
|
|
|
|
Murray L. Ireland, Aldo Vargas and David Anderson
Multirotor is the umbrella term for the family of unmanned aircraft, which include the quadrotor, hexarotor and other vertical take-off and landing (VTOL) aircraft that employ multiple main rotors for lift and control. Development and testing of novel mu...
ver más
|
|
|
|
|
|
|
|
|
|
|
Teresa Donateo, Claudia Lucia De Pascalis and Antonio Ficarella
The interest in electric and hybrid electric power system has been increasing, in recent times, due to the benefits of this technology, such as high power-to-weight ratio, reliability, compactness, quietness, and, above all, elimination of local pollutan...
ver más
|
|
|
|
|
|
|
|
|
|
|
Tielin Ma, Xiangsheng Wang, Jingcheng Fu, Shuai Hao and Pu Xue
Vertical or short take-off and landing (V/STOL) aircraft generally have three flight modes, namely, vertical take-off and landing (VTOL), conversion, and cruise, according to the variable angle of propulsion direction to the fuselage axis. However, the t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Anna Abà, Federico Barra, Pierluigi Capone and Giorgio Guglieri
This paper introduces a novel gimballed rotor mathematical model for real-time flight simulation of tilt-rotor aircraft and other vertical take-off and landing (VTOL) concepts, which improves the previous version of a multi-purpose rotor mathematical mod...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yu-Been Lee and Jae-Sang Park
Hover performance analyses of coaxial co-rotating rotors (or stacked rotors), which can be used as lifting rotors for electric VTOL (eVTOL) aircraft, are conducted here. In this study, the rotorcraft comprehensive analysis code, CAMRAD II, is used with t...
ver más
|
|
|
|
|
|
|
|
|
|
|
Daniel Aláez, Xabier Olaz, Manuel Prieto, Pablo Porcellinis and Jesús Villadangos
With the increasing popularity of vertical take-off and landing unmanned aerial vehicles (VTOL UAVs), a new problem arises: pilot training. Most conventional pilot training simulators are designed for full-scale aircrafts, while most UAV simulators are j...
ver más
|
|
|
|
|
|