Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle

A new forward-flight model for bird-like ornithopters is presented. The flight dynamics model uses results from potential, unsteady aerodynamics to characterize the forces generated by the flapping wings, including the effects of the dynamic variables on the aerodynamic formulation. Numerical result...

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Authors: Sánchez-Laulhé, Ernesto, Fernández Feria, Ramón, Ollero Baturone, Aníbal
Format: article
Status:Published version
Publication Date:2022
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/143810
Online Access:https://hdl.handle.net/11441/143810
https://doi.org/10.3390/aerospace9100617
Access Level:Open access
Keyword:Unsteady aerodynamics
Flight dynamics model
Bio-inspired UAV
Perturbation method
Ornithopter
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spelling Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial VehicleSánchez-Laulhé, ErnestoFernández Feria, RamónOllero Baturone, AníbalUnsteady aerodynamicsFlight dynamics modelBio-inspired UAVPerturbation methodOrnithopterA new forward-flight model for bird-like ornithopters is presented. The flight dynamics model uses results from potential, unsteady aerodynamics to characterize the forces generated by the flapping wings, including the effects of the dynamic variables on the aerodynamic formulation. Numerical results of the model, which are validated with flapping flight experimental data of an ornithopter prototype, show that state variables such as the pitch angle and the angle of attack oscillate with the flapping frequency, while their mean values converge towards steady-state values. The theoretical analysis of the system shows a clear separation of timescales between flapping oscillations and transient convergence towards the final forward-flight state, which is used to substantially simplify both the interpretation and the solution of the dynamic equations. Particularly, the asymptotic separation into three timescales allows for dividing the problem into a much simpler set of linear equations. The theoretical approximation, which fits the numerical results, provides a direct look into the influence of the design and control parameters using fewer computational resources. Therefore, this model provides a useful tool for the design, navigation and trajectory planning and control of flapping wing UAVs.MDPIIngeniería de Sistemas y AutomáticaTEP151: Robótica, Visión y ControlEuropean Research Council (ERC) - GRIFFIN2022info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/143810https://doi.org/10.3390/aerospace9100617reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésAerospace, 9 (10), 617.Action 788247https://www.mdpi.com/2226-4310/9/10/617info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1438102026-06-17T12:51:07Z
dc.title.none.fl_str_mv Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
title Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
spellingShingle Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
Sánchez-Laulhé, Ernesto
Unsteady aerodynamics
Flight dynamics model
Bio-inspired UAV
Perturbation method
Ornithopter
title_short Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
title_full Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
title_fullStr Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
title_full_unstemmed Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
title_sort Simplified Model for Forward-Flight Transitions of a Bio-Inspired Unmanned Aerial Vehicle
dc.creator.none.fl_str_mv Sánchez-Laulhé, Ernesto
Fernández Feria, Ramón
Ollero Baturone, Aníbal
author Sánchez-Laulhé, Ernesto
author_facet Sánchez-Laulhé, Ernesto
Fernández Feria, Ramón
Ollero Baturone, Aníbal
author_role author
author2 Fernández Feria, Ramón
Ollero Baturone, Aníbal
author2_role author
author
dc.contributor.none.fl_str_mv Ingeniería de Sistemas y Automática
TEP151: Robótica, Visión y Control
European Research Council (ERC) - GRIFFIN
dc.subject.none.fl_str_mv Unsteady aerodynamics
Flight dynamics model
Bio-inspired UAV
Perturbation method
Ornithopter
topic Unsteady aerodynamics
Flight dynamics model
Bio-inspired UAV
Perturbation method
Ornithopter
description A new forward-flight model for bird-like ornithopters is presented. The flight dynamics model uses results from potential, unsteady aerodynamics to characterize the forces generated by the flapping wings, including the effects of the dynamic variables on the aerodynamic formulation. Numerical results of the model, which are validated with flapping flight experimental data of an ornithopter prototype, show that state variables such as the pitch angle and the angle of attack oscillate with the flapping frequency, while their mean values converge towards steady-state values. The theoretical analysis of the system shows a clear separation of timescales between flapping oscillations and transient convergence towards the final forward-flight state, which is used to substantially simplify both the interpretation and the solution of the dynamic equations. Particularly, the asymptotic separation into three timescales allows for dividing the problem into a much simpler set of linear equations. The theoretical approximation, which fits the numerical results, provides a direct look into the influence of the design and control parameters using fewer computational resources. Therefore, this model provides a useful tool for the design, navigation and trajectory planning and control of flapping wing UAVs.
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/143810
https://doi.org/10.3390/aerospace9100617
url https://hdl.handle.net/11441/143810
https://doi.org/10.3390/aerospace9100617
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Aerospace, 9 (10), 617.
Action 788247
https://www.mdpi.com/2226-4310/9/10/617
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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