Neuro fuzzy logic control of magnetorheological elastomer isolation system for vibration mitigation of offshore jacket platforms

Leng, D; Zhu, Z; Liu, G; Li, Y

Neuro fuzzy logic control of magnetorheological elastomer isolation system for vibration mitigation of offshore jacket platforms

Leng, D Zhu, Z Liu, G Li, Y

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Ocean Engineering, 2022, 253
Issue Date:: 2022-04-09

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Field	Value	Language
dc.contributor.author	Leng, D
dc.contributor.author	Zhu, Z
dc.contributor.author	Liu, G
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493
dc.date.accessioned	2023-04-10T22:37:48Z
dc.date.available	2023-04-10T22:37:48Z
dc.date.issued	2022-04-09
dc.identifier.citation	Ocean Engineering, 2022, 253
dc.identifier.issn	0029-8018
dc.identifier.issn	1873-5258
dc.identifier.uri	http://hdl.handle.net/10453/169399
dc.description.abstract	Undesirable vibrations in offshore platforms due to environmental loadings reduce platform productivity and service life. This study proposes a magnetorheological elastomer (MRE) based isolation system to control the jacket platform dynamic responses under multiple loadings, namely the earthquakes and irregular waves. The dynamic model of jacket platform with MRE system is established, and a semi-active neutron-fuzzy controller is proposed for real time vibration mitigation. To evaluate the MRE-based isolation system effects on the vibration suppression of the jacket platforms under multiple loadings, a JZ20-2MUQ platform located in Bohai Sea of China is selected as a case study, and a comprehensive numerical study has been conducted. The results demonstrate that the MRE-based isolation system can effectively attenuate the dynamic responses of offshore platform. The effectiveness of the proposed MRE system is also evaluated by comparing a previous magnetorheological fluid damping system, which presents the superiority of MRE system for suppressing multiple-direction loadings.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Ocean Engineering
dc.relation.isbasedon	10.1016/j.oceaneng.2022.111293
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0405 Oceanography, 0905 Civil Engineering, 0911 Maritime Engineering
dc.subject.classification	Civil Engineering
dc.title	Neuro fuzzy logic control of magnetorheological elastomer isolation system for vibration mitigation of offshore jacket platforms
dc.type	Journal Article
utslib.citation.volume	253
utslib.for	0405 Oceanography
utslib.for	0905 Civil Engineering
utslib.for	0911 Maritime Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	closed_access	*
pubs.consider-herdc	true
dc.date.updated	2023-04-10T22:37:46Z
pubs.publication-status	Accepted
pubs.volume	253

Abstract:

Undesirable vibrations in offshore platforms due to environmental loadings reduce platform productivity and service life. This study proposes a magnetorheological elastomer (MRE) based isolation system to control the jacket platform dynamic responses under multiple loadings, namely the earthquakes and irregular waves. The dynamic model of jacket platform with MRE system is established, and a semi-active neutron-fuzzy controller is proposed for real time vibration mitigation. To evaluate the MRE-based isolation system effects on the vibration suppression of the jacket platforms under multiple loadings, a JZ20-2MUQ platform located in Bohai Sea of China is selected as a case study, and a comprehensive numerical study has been conducted. The results demonstrate that the MRE-based isolation system can effectively attenuate the dynamic responses of offshore platform. The effectiveness of the proposed MRE system is also evaluated by comparing a previous magnetorheological fluid damping system, which presents the superiority of MRE system for suppressing multiple-direction loadings.

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http://hdl.handle.net/10453/169399