Reliability of using stereo photogrammetry to estimate modal parameters
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/978-3-319-54810-4_15 http://hdl.handle.net/11449/179393 |
Resumo: | Stereophotogrammetry is a three-dimensional full-field measurement technique that has gained more importance in the area of modal analysis in the past few years. In this technique, full-field data can be taken in a single snapshot, which can be considered a great advantage over conventional measurement techniques such as laser vibrometer and accelerometer. However, it is not clear whether the stereophotogrammetry data can provide accurate modal parameters for output-only systems identification applications. This work presents a study that integrates stereophotogrammetry with output-only systems identification aiming at evaluate the use of optical measurement data (stereophotogrammetry) to estimate the modal parameters. A comparative study of two output-only systems identification (Operational PolyMAX and Stochastic Subspace Identification) and ordinary input-output based method (PolyMAX) was carried out to verify the capability of output-only methods to work with stereophotogrammetry data. The Operational PolyMAX provided more clear stability diagram and accurate damping ratio when compared with the reference parameters, however, it missed some modes in the analysis, while SSI has been shown more robust to identify the whole modes in the analyzed frequency range. |
id |
UNSP_32bb28dc90d8afd38d26ce3a544d5934 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/179393 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Reliability of using stereo photogrammetry to estimate modal parametersDigital image correlationOperating deflection shapesOperating modal analysisStereophotogrammetryStereophotogrammetry is a three-dimensional full-field measurement technique that has gained more importance in the area of modal analysis in the past few years. In this technique, full-field data can be taken in a single snapshot, which can be considered a great advantage over conventional measurement techniques such as laser vibrometer and accelerometer. However, it is not clear whether the stereophotogrammetry data can provide accurate modal parameters for output-only systems identification applications. This work presents a study that integrates stereophotogrammetry with output-only systems identification aiming at evaluate the use of optical measurement data (stereophotogrammetry) to estimate the modal parameters. A comparative study of two output-only systems identification (Operational PolyMAX and Stochastic Subspace Identification) and ordinary input-output based method (PolyMAX) was carried out to verify the capability of output-only methods to work with stereophotogrammetry data. The Operational PolyMAX provided more clear stability diagram and accurate damping ratio when compared with the reference parameters, however, it missed some modes in the analysis, while SSI has been shown more robust to identify the whole modes in the analyzed frequency range.Department of Mechanical Engineering UNESP – Univ Estadual PaulistaStructural Dynamics and Acoustic Systems Laboratory University of Massachusetts Lowell, One University AvenueDepartment of Mechanical Engineering UNESP – Univ Estadual PaulistaUniversidade Estadual Paulista (Unesp)University of Massachusetts LowellSabino, Danilo Damasceno [UNESP]Poozesh, PeymanPereira, Joao Antonio [UNESP]Niezrecki, Christopher2018-12-11T17:35:00Z2018-12-11T17:35:00Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject147-151http://dx.doi.org/10.1007/978-3-319-54810-4_15Conference Proceedings of the Society for Experimental Mechanics Series, v. 10B, p. 147-151.2191-56522191-5644http://hdl.handle.net/11449/17939310.1007/978-3-319-54810-4_152-s2.0-85035123134Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengConference Proceedings of the Society for Experimental Mechanics Series0,232info:eu-repo/semantics/openAccess2024-07-04T20:06:36Zoai:repositorio.unesp.br:11449/179393Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:25:23.535848Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Reliability of using stereo photogrammetry to estimate modal parameters |
title |
Reliability of using stereo photogrammetry to estimate modal parameters |
spellingShingle |
Reliability of using stereo photogrammetry to estimate modal parameters Sabino, Danilo Damasceno [UNESP] Digital image correlation Operating deflection shapes Operating modal analysis Stereophotogrammetry |
title_short |
Reliability of using stereo photogrammetry to estimate modal parameters |
title_full |
Reliability of using stereo photogrammetry to estimate modal parameters |
title_fullStr |
Reliability of using stereo photogrammetry to estimate modal parameters |
title_full_unstemmed |
Reliability of using stereo photogrammetry to estimate modal parameters |
title_sort |
Reliability of using stereo photogrammetry to estimate modal parameters |
author |
Sabino, Danilo Damasceno [UNESP] |
author_facet |
Sabino, Danilo Damasceno [UNESP] Poozesh, Peyman Pereira, Joao Antonio [UNESP] Niezrecki, Christopher |
author_role |
author |
author2 |
Poozesh, Peyman Pereira, Joao Antonio [UNESP] Niezrecki, Christopher |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) University of Massachusetts Lowell |
dc.contributor.author.fl_str_mv |
Sabino, Danilo Damasceno [UNESP] Poozesh, Peyman Pereira, Joao Antonio [UNESP] Niezrecki, Christopher |
dc.subject.por.fl_str_mv |
Digital image correlation Operating deflection shapes Operating modal analysis Stereophotogrammetry |
topic |
Digital image correlation Operating deflection shapes Operating modal analysis Stereophotogrammetry |
description |
Stereophotogrammetry is a three-dimensional full-field measurement technique that has gained more importance in the area of modal analysis in the past few years. In this technique, full-field data can be taken in a single snapshot, which can be considered a great advantage over conventional measurement techniques such as laser vibrometer and accelerometer. However, it is not clear whether the stereophotogrammetry data can provide accurate modal parameters for output-only systems identification applications. This work presents a study that integrates stereophotogrammetry with output-only systems identification aiming at evaluate the use of optical measurement data (stereophotogrammetry) to estimate the modal parameters. A comparative study of two output-only systems identification (Operational PolyMAX and Stochastic Subspace Identification) and ordinary input-output based method (PolyMAX) was carried out to verify the capability of output-only methods to work with stereophotogrammetry data. The Operational PolyMAX provided more clear stability diagram and accurate damping ratio when compared with the reference parameters, however, it missed some modes in the analysis, while SSI has been shown more robust to identify the whole modes in the analyzed frequency range. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:35:00Z 2018-12-11T17:35:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/978-3-319-54810-4_15 Conference Proceedings of the Society for Experimental Mechanics Series, v. 10B, p. 147-151. 2191-5652 2191-5644 http://hdl.handle.net/11449/179393 10.1007/978-3-319-54810-4_15 2-s2.0-85035123134 |
url |
http://dx.doi.org/10.1007/978-3-319-54810-4_15 http://hdl.handle.net/11449/179393 |
identifier_str_mv |
Conference Proceedings of the Society for Experimental Mechanics Series, v. 10B, p. 147-151. 2191-5652 2191-5644 10.1007/978-3-319-54810-4_15 2-s2.0-85035123134 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Conference Proceedings of the Society for Experimental Mechanics Series 0,232 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
147-151 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128929884536832 |