System Identification and active modal control of a flexible truss structure
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.7712/120115.3704.587 http://hdl.handle.net/11449/220457 |
Resumo: | The aim of this paper is to illustrate the active control of vibration of a flexible truss structure using a model-based digital controller. The state-space model of the system is derived using a system identification technique known as the Observer/Kalman Filter Identification (OKID) method together with Eigensystem Realization Algorithm (ERA). Based on the measured response of the structure to a chirp input, an explicit state-space model of the equivalent linear system is determined. To reduce the vibrations caused by an impulse force, two active strut members are installed along a vertical of the base bay of the truss. The active strut element consists of a piezoelectric ceramic stack actuator, a force transducer and mechanical interfaces. An integral controller is designed to suppress vibration of the truss. The controller, formulated with the root locus approach, is designed to maximize modal damping of a constructed truss structure. Experimental results illustrate that the active piezoceramic strut actuators and the integral controller can effectively reduce vibration of the truss. |
id |
UNSP_0f212d11bc91742b9fc3013e5359cfcc |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/220457 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
System Identification and active modal control of a flexible truss structureActive controlFlexible structuresSystem identificationThe aim of this paper is to illustrate the active control of vibration of a flexible truss structure using a model-based digital controller. The state-space model of the system is derived using a system identification technique known as the Observer/Kalman Filter Identification (OKID) method together with Eigensystem Realization Algorithm (ERA). Based on the measured response of the structure to a chirp input, an explicit state-space model of the equivalent linear system is determined. To reduce the vibrations caused by an impulse force, two active strut members are installed along a vertical of the base bay of the truss. The active strut element consists of a piezoelectric ceramic stack actuator, a force transducer and mechanical interfaces. An integral controller is designed to suppress vibration of the truss. The controller, formulated with the root locus approach, is designed to maximize modal damping of a constructed truss structure. Experimental results illustrate that the active piezoceramic strut actuators and the integral controller can effectively reduce vibration of the truss.Univ Estadual Paulista Department Mechanical Engineering, Av. Brasil, 56Univ Estadual Paulista Department Mechanical Engineering, Av. Brasil, 56Universidade Estadual Paulista (UNESP)Joventino, C. F. [UNESP]Abreu, G. L.C.M. [UNESP]Lopes, V. [UNESP]2022-04-28T19:01:36Z2022-04-28T19:01:36Z2015-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject4425-4438http://dx.doi.org/10.7712/120115.3704.587COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, p. 4425-4438.http://hdl.handle.net/11449/22045710.7712/120115.3704.5872-s2.0-84942279561Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCOMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineeringinfo:eu-repo/semantics/openAccess2022-04-28T19:01:36Zoai:repositorio.unesp.br:11449/220457Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T19:01:36Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
System Identification and active modal control of a flexible truss structure |
title |
System Identification and active modal control of a flexible truss structure |
spellingShingle |
System Identification and active modal control of a flexible truss structure Joventino, C. F. [UNESP] Active control Flexible structures System identification |
title_short |
System Identification and active modal control of a flexible truss structure |
title_full |
System Identification and active modal control of a flexible truss structure |
title_fullStr |
System Identification and active modal control of a flexible truss structure |
title_full_unstemmed |
System Identification and active modal control of a flexible truss structure |
title_sort |
System Identification and active modal control of a flexible truss structure |
author |
Joventino, C. F. [UNESP] |
author_facet |
Joventino, C. F. [UNESP] Abreu, G. L.C.M. [UNESP] Lopes, V. [UNESP] |
author_role |
author |
author2 |
Abreu, G. L.C.M. [UNESP] Lopes, V. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Joventino, C. F. [UNESP] Abreu, G. L.C.M. [UNESP] Lopes, V. [UNESP] |
dc.subject.por.fl_str_mv |
Active control Flexible structures System identification |
topic |
Active control Flexible structures System identification |
description |
The aim of this paper is to illustrate the active control of vibration of a flexible truss structure using a model-based digital controller. The state-space model of the system is derived using a system identification technique known as the Observer/Kalman Filter Identification (OKID) method together with Eigensystem Realization Algorithm (ERA). Based on the measured response of the structure to a chirp input, an explicit state-space model of the equivalent linear system is determined. To reduce the vibrations caused by an impulse force, two active strut members are installed along a vertical of the base bay of the truss. The active strut element consists of a piezoelectric ceramic stack actuator, a force transducer and mechanical interfaces. An integral controller is designed to suppress vibration of the truss. The controller, formulated with the root locus approach, is designed to maximize modal damping of a constructed truss structure. Experimental results illustrate that the active piezoceramic strut actuators and the integral controller can effectively reduce vibration of the truss. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01 2022-04-28T19:01:36Z 2022-04-28T19:01:36Z |
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/10.7712/120115.3704.587 COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, p. 4425-4438. http://hdl.handle.net/11449/220457 10.7712/120115.3704.587 2-s2.0-84942279561 |
url |
http://dx.doi.org/10.7712/120115.3704.587 http://hdl.handle.net/11449/220457 |
identifier_str_mv |
COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, p. 4425-4438. 10.7712/120115.3704.587 2-s2.0-84942279561 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
COMPDYN 2015 - 5th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
4425-4438 |
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_ |
1803650018473672704 |