Power Modeling and Experiment Study of Large Flapping-Wing Flying Robot during Forward Flight
Applied Sciences, 2022 A power estimation approach for calculating the power of a flapping-wing air vehicle (FWAV) in forward flight is proposed in this paper. One of the challenges and essential points of FWAVs is endurance.
Siping Zhong, Wenfu Xu
doaj +3 more sources
Wake Propagation and Characteristics of a Multi-Rotor Unmanned Vehicle in Forward Flight
Drones, 2022 In this study, experimental investigations are used to explore the wake propagation and characteristics of a multi-rotor unmanned air vehicle (UAV) in a forward flight mission.
Glen Throneberry +4 more
doaj +3 more sources
Experimental Investigations on Flow Control of the Rotor via the Synthetic Jets in Forward Flight
Aerospace, 2023 To study the effects of synthetic jet control on the aerodynamic performance of a rotor in forward flight, we conducted a series of experiments with varying rotor rotation speeds and free stream velocities.
Xi Chen +3 more
doaj +3 more sources
Three-dimensional simulation for fast forward flight of a calliope hummingbird [PDF]
Royal Society Open Science, 2016 We present a computational study of flapping-wing aerodynamics of a calliope hummingbird (Selasphorus calliope) during fast forward flight. Three-dimensional wing kinematics were incorporated into the model by extracting time-dependent wing position from
Jialei Song +4 more
doaj +3 more sources
Wind Tunnel Investigation of the Icing of a Drone Rotor in Forward Flight
DronesThe Bell Textron APT70 is a UAV concept developed for last mile delivery and other usual applications. It performs vertical takeoff and transition into aircraft mode for forward flight. It includes four rotor each with four rotating blades.
Derek Harvey +3 more
doaj +3 more sources
Applied Sciences, 2021 To ensure the stability of flight, the butterfly needs to flap its wings and simultaneously move its main body to achieve all kinds of flying motion, such as taking off, hovering, or reverse flight.
Yixin Zhang +4 more
doaj +3 more sources
Simulation of Longitudinal Stability Of Helicopter In Forward Flight
Journal of Engineering, 2023 The present work describes the development of code for trim and longitudinal stability analysis of a helicopter in forward flight. In general, particular use of these codes can be made for parametric investigation of the effects of the external and ...
Kareem Jawad Kadhim +1 more
doaj +1 more source
Trajectory Tracking Based on Active Disturbance Rejection Control for Compound Unmanned Aircraft
Aerospace, 2022 The compound unmanned aircraft is provided with three primary flight modes, which are helicopter flight mode in low forward speed flight, airplane flight mode in high forward speed flight and transition flight mode in middle forward speed flight. For the
Bohai Deng, Jinfa Xu
doaj +1 more source
Influence of Aerodynamic Characteristics of Airfoil Forward Flight Considering Step-Type Ground
Shanghai Jiaotong Daxue xuebao, 2023 The aerodynamic influence of ground effects during forward flight is difficult to ignore, especially when there is a sudden change in the ground structure.
XU Xiaogang, ZHANG Yang, CHANG Min, CHEN Gang
doaj +1 more source
Conversion Flight Control for Tiltrotor Aircraft via Active Disturbance Rejection Control
Aerospace, 2022 The tiltrotor aircraft consists of three primary flight modes, which are helicopter flight mode in low forward speed flight, airplane flight mode in high forward speed flight and conversion flight mode. This paper presents an active disturbance rejection
Ke Lu +4 more
doaj +1 more source