Some features of the acceleration impulse response function
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s11012-020-01265-4 http://hdl.handle.net/11449/207067 |
Resumo: | Impulse response functions (IRFs) and frequency response functions (FRFs) are fundamental quantities that describe the dynamic behaviour of a linear vibrating system in the time and frequency domains respectively. The acceleration IRF is of particular concern in this paper, because unlike the displacement and velocity IRFs it contains a Delta function as well as a decaying oscillation. The origin of this Delta function is shown to be due to the causality constraint rather than the system. To illustrate the characteristics of the IRFs and FRFs, simulations are presented for a single-degree-of-freedom system, and are supported by some laboratory experimental work. The acceleration IRF is partitioned into the impulse component (Delta function for the simulations) and the oscillatory component. They are separately transformed to the frequency domain to illustrate their effects in the accelerance FRFs for both simulated and measured data. |
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Repositório Institucional da UNESP |
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Some features of the acceleration impulse response functionElectrodynamic shakerFourier transformFrequency response functionsHeaviside functionImpulse response functionsImpulse response functions (IRFs) and frequency response functions (FRFs) are fundamental quantities that describe the dynamic behaviour of a linear vibrating system in the time and frequency domains respectively. The acceleration IRF is of particular concern in this paper, because unlike the displacement and velocity IRFs it contains a Delta function as well as a decaying oscillation. The origin of this Delta function is shown to be due to the causality constraint rather than the system. To illustrate the characteristics of the IRFs and FRFs, simulations are presented for a single-degree-of-freedom system, and are supported by some laboratory experimental work. The acceleration IRF is partitioned into the impulse component (Delta function for the simulations) and the oscillatory component. They are separately transformed to the frequency domain to illustrate their effects in the accelerance FRFs for both simulated and measured data.National Outstanding Youth Science Fund Project of National Natural Science Foundation of ChinaFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Department of Mechanical Engineering UNESP-FEISInstitute of Internal Combustion Engine Dalian University of TechnologyFaculty of Science and Engineering UNESP-FCEDepartment of Mechanical Engineering UNESP-FEBDepartment of Mechanical Engineering UNESP-FEISFaculty of Science and Engineering UNESP-FCEDepartment of Mechanical Engineering UNESP-FEBNational Outstanding Youth Science Fund Project of National Natural Science Foundation of China: 11672058FAPESP: 2013/50412-3FAPESP: 2017/14432-0FAPESP: 2017/16953-8CNPq: 88887.374001/2019-00Universidade Estadual Paulista (Unesp)Dalian University of TechnologyIwanaga, M. K. [UNESP]Brennan, M. J. [UNESP]Tang, B.Scussel, O. [UNESP]Almeida, F. C.L. [UNESP]2021-06-25T10:48:28Z2021-06-25T10:48:28Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article169-177http://dx.doi.org/10.1007/s11012-020-01265-4Meccanica, v. 56, n. 1, p. 169-177, 2021.1572-96480025-6455http://hdl.handle.net/11449/20706710.1007/s11012-020-01265-42-s2.0-85098695738Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMeccanicainfo:eu-repo/semantics/openAccess2024-07-04T20:05:59Zoai:repositorio.unesp.br:11449/207067Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:02:48.107101Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Some features of the acceleration impulse response function |
title |
Some features of the acceleration impulse response function |
spellingShingle |
Some features of the acceleration impulse response function Iwanaga, M. K. [UNESP] Electrodynamic shaker Fourier transform Frequency response functions Heaviside function Impulse response functions |
title_short |
Some features of the acceleration impulse response function |
title_full |
Some features of the acceleration impulse response function |
title_fullStr |
Some features of the acceleration impulse response function |
title_full_unstemmed |
Some features of the acceleration impulse response function |
title_sort |
Some features of the acceleration impulse response function |
author |
Iwanaga, M. K. [UNESP] |
author_facet |
Iwanaga, M. K. [UNESP] Brennan, M. J. [UNESP] Tang, B. Scussel, O. [UNESP] Almeida, F. C.L. [UNESP] |
author_role |
author |
author2 |
Brennan, M. J. [UNESP] Tang, B. Scussel, O. [UNESP] Almeida, F. C.L. [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Dalian University of Technology |
dc.contributor.author.fl_str_mv |
Iwanaga, M. K. [UNESP] Brennan, M. J. [UNESP] Tang, B. Scussel, O. [UNESP] Almeida, F. C.L. [UNESP] |
dc.subject.por.fl_str_mv |
Electrodynamic shaker Fourier transform Frequency response functions Heaviside function Impulse response functions |
topic |
Electrodynamic shaker Fourier transform Frequency response functions Heaviside function Impulse response functions |
description |
Impulse response functions (IRFs) and frequency response functions (FRFs) are fundamental quantities that describe the dynamic behaviour of a linear vibrating system in the time and frequency domains respectively. The acceleration IRF is of particular concern in this paper, because unlike the displacement and velocity IRFs it contains a Delta function as well as a decaying oscillation. The origin of this Delta function is shown to be due to the causality constraint rather than the system. To illustrate the characteristics of the IRFs and FRFs, simulations are presented for a single-degree-of-freedom system, and are supported by some laboratory experimental work. The acceleration IRF is partitioned into the impulse component (Delta function for the simulations) and the oscillatory component. They are separately transformed to the frequency domain to illustrate their effects in the accelerance FRFs for both simulated and measured data. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-25T10:48:28Z 2021-06-25T10:48:28Z 2021-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s11012-020-01265-4 Meccanica, v. 56, n. 1, p. 169-177, 2021. 1572-9648 0025-6455 http://hdl.handle.net/11449/207067 10.1007/s11012-020-01265-4 2-s2.0-85098695738 |
url |
http://dx.doi.org/10.1007/s11012-020-01265-4 http://hdl.handle.net/11449/207067 |
identifier_str_mv |
Meccanica, v. 56, n. 1, p. 169-177, 2021. 1572-9648 0025-6455 10.1007/s11012-020-01265-4 2-s2.0-85098695738 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Meccanica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
169-177 |
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_ |
1808128308217380864 |