Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models

In recent years, interest in airships for cargo transport and stratospheric platforms has increased, necessitating accurate dynamic modeling for stability analysis, autopilot design, and mission planning, specifically through the calculation of stability derivatives, like added mass and inertia. Des...

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Authors: López Rodríguez, Deibi, Domínguez Fernández, Diego, Delgado Marcos, Adrián, García Gutiérrez, Adrián, Gonzalo de Grado, Jesús
Format: article
Status:Published version
Publication Date:2024
Country:España
Institution:Ajuntament de Barcelona
Repository:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/22948
Online Access:https://hdl.handle.net/10612/22948
Access Level:Open access
Keyword:Aeronáutica
Dynamic test
Wind tunnel
Virtual mass
Airship
Added mass
3301 Ingeniería y Tecnología Aeronáuticas
id ES_f0a9cc16d6cdfbe487e90b6a6bb2c9a7
oai_identifier_str oai:buleria.unileon.es:10612/22948
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spelling Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight ModelsLópez Rodríguez, DeibiDomínguez Fernández, DiegoDelgado Marcos, AdriánGarcía Gutiérrez, AdriánGonzalo de Grado, JesúsAeronáuticaDynamic testWind tunnelVirtual massAirshipAdded mass3301 Ingeniería y Tecnología AeronáuticasIn recent years, interest in airships for cargo transport and stratospheric platforms has increased, necessitating accurate dynamic modeling for stability analysis, autopilot design, and mission planning, specifically through the calculation of stability derivatives, like added mass and inertia. Despite the several CFD methods and analytical solutions available to calculate added masses, experimental validation remains essential. This study introduces a novel methodology to measure these in a wind tunnel, comparing the results with prior studies that utilized towing tanks. The approach involves designing the test model and a crank-slider mechanism to generate motion within the wind tunnel, considering load cell sensitivity, precision, frequency range, and Reynolds numbers. A revolution ellipsoid model, made from extruded polystyrene, was used to validate analytical solutions. The test model, measuring 1 m in length with an aspect ratio of 6, weighing 482 g, was moved along rails by the crank-slider system. By increasing the motion frequency, structural vibrations affecting load cell measurements were minimized. Proper signal processing, including high-pass filtering and second-order Fourier series fitting, enabled successful virtual mass calculation, showing only a 2.1% deviation from theoretical values, significantly improving on previous studies with higher relative errors.SIThis work has been supported by the Spanish project PID2020-120496RB-I00 financed by MCIU/AEI/10.13039/501100011033.Agencia Estatal de InvestigaciónMinisterio de Economía y CompetitividadMDPIIngenieria AeroespacialEscuela de Ingenierias Industrial, Informática y Aeroespacial2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://hdl.handle.net/10612/22948reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Ajuntament de BarcelonaEspañoleu-repo/grantAgreement/AEI/Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/PID2020-120496RB-I00/ES/DESARROLLO Y VALIDACION DE UN MODELO DINAMICO DE UN PSEUDOSATELITE ESTRATOSFERICO MAS LIGERO QUE EL AIREhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/229482026-06-24T12:43:27Z
dc.title.none.fl_str_mv Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
title Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
spellingShingle Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
López Rodríguez, Deibi
Aeronáutica
Dynamic test
Wind tunnel
Virtual mass
Airship
Added mass
3301 Ingeniería y Tecnología Aeronáuticas
title_short Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
title_full Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
title_fullStr Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
title_full_unstemmed Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
title_sort Experimental Calculation of Added Masses for the Accurate Construction of Airship Flight Models
dc.creator.none.fl_str_mv López Rodríguez, Deibi
Domínguez Fernández, Diego
Delgado Marcos, Adrián
García Gutiérrez, Adrián
Gonzalo de Grado, Jesús
author López Rodríguez, Deibi
author_facet López Rodríguez, Deibi
Domínguez Fernández, Diego
Delgado Marcos, Adrián
García Gutiérrez, Adrián
Gonzalo de Grado, Jesús
author_role author
author2 Domínguez Fernández, Diego
Delgado Marcos, Adrián
García Gutiérrez, Adrián
Gonzalo de Grado, Jesús
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingenieria Aeroespacial
Escuela de Ingenierias Industrial, Informática y Aeroespacial
dc.subject.none.fl_str_mv Aeronáutica
Dynamic test
Wind tunnel
Virtual mass
Airship
Added mass
3301 Ingeniería y Tecnología Aeronáuticas
topic Aeronáutica
Dynamic test
Wind tunnel
Virtual mass
Airship
Added mass
3301 Ingeniería y Tecnología Aeronáuticas
description In recent years, interest in airships for cargo transport and stratospheric platforms has increased, necessitating accurate dynamic modeling for stability analysis, autopilot design, and mission planning, specifically through the calculation of stability derivatives, like added mass and inertia. Despite the several CFD methods and analytical solutions available to calculate added masses, experimental validation remains essential. This study introduces a novel methodology to measure these in a wind tunnel, comparing the results with prior studies that utilized towing tanks. The approach involves designing the test model and a crank-slider mechanism to generate motion within the wind tunnel, considering load cell sensitivity, precision, frequency range, and Reynolds numbers. A revolution ellipsoid model, made from extruded polystyrene, was used to validate analytical solutions. The test model, measuring 1 m in length with an aspect ratio of 6, weighing 482 g, was moved along rails by the crank-slider system. By increasing the motion frequency, structural vibrations affecting load cell measurements were minimized. Proper signal processing, including high-pass filtering and second-order Fourier series fitting, enabled successful virtual mass calculation, showing only a 2.1% deviation from theoretical values, significantly improving on previous studies with higher relative errors.
publishDate 2024
dc.date.none.fl_str_mv 2024
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/10612/22948
url https://hdl.handle.net/10612/22948
dc.language.none.fl_str_mv Español
language_invalid_str_mv Español
dc.relation.none.fl_str_mv eu-repo/grantAgreement/AEI/Programa Estatal de I+D+I Orientada a los Retos de la Sociedad/PID2020-120496RB-I00/ES/DESARROLLO Y VALIDACION DE UN MODELO DINAMICO DE UN PSEUDOSATELITE ESTRATOSFERICO MAS LIGERO QUE EL AIRE
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Ajuntament de Barcelona
instname_str Ajuntament de Barcelona
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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