Grid-based GA path planning with improved cost function for an over-actuated hover-capable AUV [PDF]
, 2014 For an AUV to perform a long-range mission with its maximum endurance, its energy consumption during transit must be kept to a minimum. This paper presents an improved cost function for a grid-based genetic algorithm (GA) path planning in 2D static ...
Philip A. Wilson +10 more
core +2 more sources
Computational Investigation of Blade–Vortex Interaction of Coaxial Rotors for eVTOL Vehicles
Energies, 2022 In the design of electric vertical takeoff and landing (eVTOL) vehicles, coaxial rotors have garnered significant attention due to their superior space usage and aerodynamic efficiency compared to standard rotors.
Ziyi Xu +3 more
doaj +1 more source
Research on control strategy of four rotorcraft tracking ground moving target
Dianzi Jishu Yingyong, 2018 In order to enable the four rotorcraft to track the ground moving target, the spatial position control strategy of four rotorcraft is studied. Firstly, the attitude PID control of the four rotorcraft is improved and the appropriate parameters are set ...
Huang Ruimin +4 more
doaj +1 more source
Non-linear unsteady aerodynamic model for insect-like flapping wings in the hover. Part 1: Methodology and analysis [PDF]
, 2006 The essence of this two-part paper is the analytical, aerodynamic modelling of insect-like flapping wings in the hover for microair vehicle applications.
Knowles, Kevin +2 more
core +1 more source
Model predictive control of a hybrid autonomous underwater vehicle with experimental verification [PDF]
, 2014 In this work model predictive control is used to provide transit and hover capabilities for an autonomous underwater vehicle where the description of the system dynamics used include terms measured experimentally.
Bodles, Kenneth +11 more
core +1 more source
Basic and Applied Ecology, 2023 Urban greenspaces are vital refugia for insect biodiversity, but seasonal fluctuation responses of insect taxa to urbanisation and local attributes of urban greenspaces are not well known.
Manuel E. Lequerica Tamara +4 more
doaj +1 more source
Numerical and Experimental Estimation of the Efficiency of a Quadcopter Rotor Operating at Hover
Energies, 2019 Globalization has led to an increase in the use of small copters for different activities such as geo-referencing, agricultural fields monitoring, survillance, among others.
Andres M. Pérez G. +4 more
doaj +1 more source
Multi‐UAV cooperative trajectory optimisation for a multi‐hop UAV relaying network
Electronics Letters, 2021 In this letter, an unmanned aerial vehicle (UAV) assisted data collection scenario is considered in the Internet of Things (IoT), where a multi‐hop UAV relaying network is constructed for real‐time data transmission.
Cuntao Liu, Yan Guo, Ning Li, Bin Zhou
doaj +1 more source
Design of Optimum Torsionally Flexible PropRotors for Tilt-Body MAVs [PDF]
, 2012 This paper presents a methodology to design the optimum proprotor for tilt-body microair-vehicles (TB-MAV) with efficient global propulsion system and long flight endurance in both cruise and hover modes.
Moschetta, Jean-Marc +3 more
core +1 more source
Study on the impact of Gurney flap parameters on rotor performance improvement
Hangkong gongcheng jinzhanAt present, most of the research on installing Gurney flaps is focused on two-dimensional airfoils. The three-dimensional blade model is established to investigate the influence of different Gurney flap parameters on rotor aerodynamic performance ...
LIU Shaoteng +3 more
doaj +1 more source