Modelling and simulation of a tethered UAS

Battery lifetime is one of the most challenging problems for Unmanned Aircraft System (UAS) applications. Multi-rotor platforms usually suffer limited payload capabilities and flight time. To overcome this problem, tethered vehicle solutions have been developed. In this paper, we propose a mathemati...

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Bibliographic Details
Published in2020 International Conference on Unmanned Aircraft Systems (ICUAS) pp. 1801 - 1808
Main Authors Dicembrini, Emilio, Scanavino, M., Dabbene, F., Guglieri, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2020
Subjects
Aerodynamics
Atmospheric modeling
Finite element analysis
Mathematical model
Radio frequency
Underwater cables
Vehicle dynamics
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Summary:Battery lifetime is one of the most challenging problems for Unmanned Aircraft System (UAS) applications. Multi-rotor platforms usually suffer limited payload capabilities and flight time. To overcome this problem, tethered vehicle solutions have been developed. In this paper, we propose a mathematical model able to describe the dynamic behaviour of a tethered UAS. The approach is based on the Finite Element Method and Lagrange's Equation of motion. The cable is divided into segments linked to each other by spherical joints. An additional virtual element is used to represent the vehicle dynamics. Compared to other works, a variable cable length is implemented as well as wind effects on overall system are included. Simulation results corroborate that the proposed approach is able to simulate how the cable and UAS work in different operating conditions, such as take-off and hovering in both still air and wind scenario.
ISSN:2575-7296
DOI:10.1109/ICUAS48674.2020.9214006