Ground effect on rotorcraft unmanned aerial vehicles: a review

This article aims at collecting and discussing the results reached by the research community regarding the study of the ground effect on small rotorcraft unmanned aerial vehicles, especially from the modeling and control point of view. Rotorcraft performance is affected by the presence of the ground...

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Bibliographic Details
Published in:Intelligent service robotics 2021-03, Vol.14 (1), p.99-118
Main Authors: Matus-Vargas, Antonio, Rodriguez-Gomez, Gustavo, Martinez-Carranza, Jose
Format: Article
Language:English
Subjects:
Artificial Intelligence
Control
Crashes
Dynamical Systems
Energy consumption
Engineering
Ground effect (aerodynamics)
Helicopters
Mechatronics
Modelling
Property damage
Review Article
Robotics
Robotics and Automation
Rotary wing aircraft
Safety
Trends
Unmanned aerial vehicles
Unmanned helicopters
User Interfaces and Human Computer Interaction
Velocity
Vibration
Vortices
Wall effects
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Summary:This article aims at collecting and discussing the results reached by the research community regarding the study of the ground effect on small rotorcraft unmanned aerial vehicles, especially from the modeling and control point of view. Rotorcraft performance is affected by the presence of the ground or any other boundary that alters the flow into the rotors. Specifically, the ground effect can induce perturbations in the flight stability, when operating near the ground. For a rotorcraft, an accident is likely to happen when the vehicle leaves or enters the ground effect region, which may cause crashes and property damages. Today, the use of unmanned aerial vehicles has grown widespread, which raises safety concerns when they are flying at very low altitudes and near the ground. Consequently, studying the influence of the ground over rotorcrafts is of paramount importance for general safety. Also, these investigations can be used to design systems of guidance, navigation, and control. In this review, we break down the most relevant works to date. We discuss aspects related to modeling, control, and application of the ground effect for small-scale multirotors, as well as other aerodynamic proximity effects, such as the ceiling and wall effects. We conclude by mentioning potential avenues of research when studying the ground effect from the point of view of the robotics and artificial intelligence fields.
ISSN:1861-2776
1861-2784
DOI:10.1007/s11370-020-00344-5