An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1115/1.4044485 http://hdl.handle.net/11449/196482 |
Resumo: | Built-up structures, such as airplanes, ships, and even refrigeration systems, which have many components, can be substructured to speed up and facilitate the process of calculating the vibratory response of the complete system. In many structures, there are rubber isolators that connect component parts, and these connections can each occur over a finite distributed area. It is often convenient and intuitive to substructure the system at the isolators. However, in previous work, it has been shown that the frequency response of the complete system does not always agree with the frequency response of the system calculated from the mobilities of the subsystems. It was thought that this was due to the distributed area connection of the isolators, and this motivated the study reported in this article. An investigation into some issues that occur when sub-tructuring a system that contains soft distributed isolators is described. Using finite element models, it is shown that if a system is substructured, such that the interface between the substructures occurs at a soft rubber isolator, then there is a limited frequency range over which the frequency response function of the assembled system is accurate. It is further shown that it is far better to substructure the system, at stiff, discrete connections, if possible. The frequency range over which the frequency response of the assembled system should then be more accurate over a much wider frequency range. |
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Repositório Institucional da UNESP |
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An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolatorsvibrationsubstructuringrubber isolatormobilitiesdampingdynamicssystem identificationvibration isolationBuilt-up structures, such as airplanes, ships, and even refrigeration systems, which have many components, can be substructured to speed up and facilitate the process of calculating the vibratory response of the complete system. In many structures, there are rubber isolators that connect component parts, and these connections can each occur over a finite distributed area. It is often convenient and intuitive to substructure the system at the isolators. However, in previous work, it has been shown that the frequency response of the complete system does not always agree with the frequency response of the system calculated from the mobilities of the subsystems. It was thought that this was due to the distributed area connection of the isolators, and this motivated the study reported in this article. An investigation into some issues that occur when sub-tructuring a system that contains soft distributed isolators is described. Using finite element models, it is shown that if a system is substructured, such that the interface between the substructures occurs at a soft rubber isolator, then there is a limited frequency range over which the frequency response function of the assembled system is accurate. It is further shown that it is far better to substructure the system, at stiff, discrete connections, if possible. The frequency range over which the frequency response of the assembled system should then be more accurate over a much wider frequency range.Univ Fed Mato Grosso, Dept Mech Engn, Rodovia MT 270 Rondonopolis Guiratinga,Km 06, BR-78 73590 Rondonopolis, MT, BrazilUniv Estadual Paulista, Dept Mech Engn, Av Brasil 56, BR-15385000 Ilha Solteira, SP, BrazilUniv Estadual Paulista, Dept Mech Engn, Av Brasil 56, BR-15385000 Ilha Solteira, SP, BrazilAsmeUniversidade Federal de Mato Grosso do Sul (UFMS)Universidade Estadual Paulista (Unesp)Marques, Viviane CassolBrennan, Michael John [UNESP]2020-12-10T19:46:25Z2020-12-10T19:46:25Z2019-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7http://dx.doi.org/10.1115/1.4044485Journal Of Vibration And Acoustics-transactions Of The Asme. New York: Asme, v. 141, n. 6, 7 p., 2019.1048-9002http://hdl.handle.net/11449/19648210.1115/1.4044485WOS:0005069079000173283762683761655Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal Of Vibration And Acoustics-transactions Of The Asmeinfo:eu-repo/semantics/openAccess2024-07-04T20:06:00Zoai:repositorio.unesp.br:11449/196482Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:31:11.889597Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
title |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
spellingShingle |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators Marques, Viviane Cassol vibration substructuring rubber isolator mobilities damping dynamics system identification vibration isolation |
title_short |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
title_full |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
title_fullStr |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
title_full_unstemmed |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
title_sort |
An Alternative Approach to Substructuring in Vibratory Systems Containing Soft Rubber Isolators |
author |
Marques, Viviane Cassol |
author_facet |
Marques, Viviane Cassol Brennan, Michael John [UNESP] |
author_role |
author |
author2 |
Brennan, Michael John [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Federal de Mato Grosso do Sul (UFMS) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Marques, Viviane Cassol Brennan, Michael John [UNESP] |
dc.subject.por.fl_str_mv |
vibration substructuring rubber isolator mobilities damping dynamics system identification vibration isolation |
topic |
vibration substructuring rubber isolator mobilities damping dynamics system identification vibration isolation |
description |
Built-up structures, such as airplanes, ships, and even refrigeration systems, which have many components, can be substructured to speed up and facilitate the process of calculating the vibratory response of the complete system. In many structures, there are rubber isolators that connect component parts, and these connections can each occur over a finite distributed area. It is often convenient and intuitive to substructure the system at the isolators. However, in previous work, it has been shown that the frequency response of the complete system does not always agree with the frequency response of the system calculated from the mobilities of the subsystems. It was thought that this was due to the distributed area connection of the isolators, and this motivated the study reported in this article. An investigation into some issues that occur when sub-tructuring a system that contains soft distributed isolators is described. Using finite element models, it is shown that if a system is substructured, such that the interface between the substructures occurs at a soft rubber isolator, then there is a limited frequency range over which the frequency response function of the assembled system is accurate. It is further shown that it is far better to substructure the system, at stiff, discrete connections, if possible. The frequency range over which the frequency response of the assembled system should then be more accurate over a much wider frequency range. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-01 2020-12-10T19:46:25Z 2020-12-10T19:46:25Z |
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/10.1115/1.4044485 Journal Of Vibration And Acoustics-transactions Of The Asme. New York: Asme, v. 141, n. 6, 7 p., 2019. 1048-9002 http://hdl.handle.net/11449/196482 10.1115/1.4044485 WOS:000506907900017 3283762683761655 |
url |
http://dx.doi.org/10.1115/1.4044485 http://hdl.handle.net/11449/196482 |
identifier_str_mv |
Journal Of Vibration And Acoustics-transactions Of The Asme. New York: Asme, v. 141, n. 6, 7 p., 2019. 1048-9002 10.1115/1.4044485 WOS:000506907900017 3283762683761655 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal Of Vibration And Acoustics-transactions Of The Asme |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7 |
dc.publisher.none.fl_str_mv |
Asme |
publisher.none.fl_str_mv |
Asme |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1808128372882014208 |