Active vibration isolation of a diesel generator in a small marine vessel: An experimental study
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/app10093025 http://hdl.handle.net/11449/198903 |
Resumo: | An active vibration isolation system is retrofitted to a diesel generator set in a tugboat to determine the effectiveness of such a system in a realistic practical environment. The system consists of six bespoke inertial actuators chosen to make minimal modifications to the machinery arrangement, and a DSP-based controller. Six accelerometers are collocated with the actuators on the top of six isolators to act as error sensors, and six accelerometers are placed below the isolators to give a measure of the global vibration of the ships structure below the generator set. A hydrophone is also placed in the water to give an indication of the underwater noise due to the generator. The control strategy employed is six-input and six-output decentralized adaptive feedforward control with the reference signal being derived from the signal from an optical tachometer on shaft between the engine and the generator. To suppress the vibration at all the dominant forcing frequencies, an electrical circuit generated the half engine orders required from the measured reference signal. The experimental results show that the combination of the active control system and the passive isolators is effective in reducing the global vibration and the acoustic pressure at the hydrophone position. |
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Repositório Institucional da UNESP |
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Active vibration isolation of a diesel generator in a small marine vessel: An experimental studyActive vibration isolationDiesel generatorExperimental investigationTugboatUnderwater noise radiationAn active vibration isolation system is retrofitted to a diesel generator set in a tugboat to determine the effectiveness of such a system in a realistic practical environment. The system consists of six bespoke inertial actuators chosen to make minimal modifications to the machinery arrangement, and a DSP-based controller. Six accelerometers are collocated with the actuators on the top of six isolators to act as error sensors, and six accelerometers are placed below the isolators to give a measure of the global vibration of the ships structure below the generator set. A hydrophone is also placed in the water to give an indication of the underwater noise due to the generator. The control strategy employed is six-input and six-output decentralized adaptive feedforward control with the reference signal being derived from the signal from an optical tachometer on shaft between the engine and the generator. To suppress the vibration at all the dominant forcing frequencies, an electrical circuit generated the half engine orders required from the measured reference signal. The experimental results show that the combination of the active control system and the passive isolators is effective in reducing the global vibration and the acoustic pressure at the hydrophone position.Institute of Vibration and Noise Control Harbin Engineering UniversityDepartamento de Engenharia Mecânica Universidade Estadual Paulista (UNESP)Departamento de Engenharia Mecânica Universidade Estadual Paulista (UNESP)Harbin Engineering UniversityUniversidade Estadual Paulista (Unesp)Yang, TiejunWu, LeiLi, XinhuiZhu, MinggangBrennan, Michael J. [UNESP]Liu, Zhigang2020-12-12T01:25:02Z2020-12-12T01:25:02Z2020-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/app10093025Applied Sciences (Switzerland), v. 10, n. 9, 2020.2076-3417http://hdl.handle.net/11449/19890310.3390/app100930252-s2.0-85085572724Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Sciences (Switzerland)info:eu-repo/semantics/openAccess2021-10-22T20:56:21Zoai:repositorio.unesp.br:11449/198903Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T14:54:38.124186Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
title |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
spellingShingle |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study Yang, Tiejun Active vibration isolation Diesel generator Experimental investigation Tugboat Underwater noise radiation |
title_short |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
title_full |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
title_fullStr |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
title_full_unstemmed |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
title_sort |
Active vibration isolation of a diesel generator in a small marine vessel: An experimental study |
author |
Yang, Tiejun |
author_facet |
Yang, Tiejun Wu, Lei Li, Xinhui Zhu, Minggang Brennan, Michael J. [UNESP] Liu, Zhigang |
author_role |
author |
author2 |
Wu, Lei Li, Xinhui Zhu, Minggang Brennan, Michael J. [UNESP] Liu, Zhigang |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Harbin Engineering University Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Yang, Tiejun Wu, Lei Li, Xinhui Zhu, Minggang Brennan, Michael J. [UNESP] Liu, Zhigang |
dc.subject.por.fl_str_mv |
Active vibration isolation Diesel generator Experimental investigation Tugboat Underwater noise radiation |
topic |
Active vibration isolation Diesel generator Experimental investigation Tugboat Underwater noise radiation |
description |
An active vibration isolation system is retrofitted to a diesel generator set in a tugboat to determine the effectiveness of such a system in a realistic practical environment. The system consists of six bespoke inertial actuators chosen to make minimal modifications to the machinery arrangement, and a DSP-based controller. Six accelerometers are collocated with the actuators on the top of six isolators to act as error sensors, and six accelerometers are placed below the isolators to give a measure of the global vibration of the ships structure below the generator set. A hydrophone is also placed in the water to give an indication of the underwater noise due to the generator. The control strategy employed is six-input and six-output decentralized adaptive feedforward control with the reference signal being derived from the signal from an optical tachometer on shaft between the engine and the generator. To suppress the vibration at all the dominant forcing frequencies, an electrical circuit generated the half engine orders required from the measured reference signal. The experimental results show that the combination of the active control system and the passive isolators is effective in reducing the global vibration and the acoustic pressure at the hydrophone position. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T01:25:02Z 2020-12-12T01:25:02Z 2020-05-01 |
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/10.3390/app10093025 Applied Sciences (Switzerland), v. 10, n. 9, 2020. 2076-3417 http://hdl.handle.net/11449/198903 10.3390/app10093025 2-s2.0-85085572724 |
url |
http://dx.doi.org/10.3390/app10093025 http://hdl.handle.net/11449/198903 |
identifier_str_mv |
Applied Sciences (Switzerland), v. 10, n. 9, 2020. 2076-3417 10.3390/app10093025 2-s2.0-85085572724 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Applied Sciences (Switzerland) |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1808128434702909440 |