Study on a three-dimensional variable-stiffness TMD for mitigating bi-directional vibration of monopile offshore wind turbines

Leng, D; Wang, R; Yang, Y; Li, Y; Liu, G

Study on a three-dimensional variable-stiffness TMD for mitigating bi-directional vibration of monopile offshore wind turbines

Leng, D Wang, R Yang, Y Li, Y

Liu, G

Permalink

Publisher:: PERGAMON-ELSEVIER SCIENCE LTD
Publication Type:: Journal Article
Citation:: Ocean Engineering, 2023, 281
Issue Date:: 2023-08-01

In Progress

	Filename	Description	Size
	1-s2.0-S0029801823011757-main.pdf	Published version	16.05 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Open Access

This item is being processed and is not currently available.

Full metadata record

Field	Value	Language
dc.contributor.author	Leng, D
dc.contributor.author	Wang, R
dc.contributor.author	Yang, Y
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493
dc.contributor.author	Liu, G
dc.date.accessioned	2024-05-10T12:12:08Z
dc.date.available	2024-05-10T12:12:08Z
dc.date.issued	2023-08-01
dc.identifier.citation	Ocean Engineering, 2023, 281
dc.identifier.issn	0029-8018
dc.identifier.issn	1873-5258
dc.identifier.uri	http://hdl.handle.net/10453/178820
dc.description.abstract	Bi-directional vibrations of offshore wind turbine (OWT) exist due to the misalignment of wind and wave loadings, which induces the structural fatigue failure. At present, monopile offshore wind turbine (MOWT) is widest utilized in worldwide, which is adopted as the research objective in this study. A novel semi-active three-dimensional magnetorheological elastomer (MRE) based tuned mass damper is proposed to suppress a MOWT bi-directional vibration under misaligned wind, wave, seismic loadings. The proposed MRE-based TMD is installed in the nacelle, which presents dual-directional controllable stiffness properties. Its nonlinear behavior is depicted by bi-lateral Bouc-Wen model. A semi-active control framework is developed, in which current-dependent stiffness of MRE-based TMD is tuned for tracing real-time dominant frequency of the MOWT. The numerical results reveal that MRE-based TMD can effectively attenuate the bi-directional dynamic responses of MOWT under various operation conditions. Additionally, the semi-active MRE-based TMD outperforms passive TMD in reducing the peak and RMS displacement of the tower top in both fore-aft (FA) and side-side (SS) directions, especially in operational state. MRE-based TMD also presents strong robustness under the condition of structural stiffness degradation.
dc.language	English
dc.publisher	PERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartof	Ocean Engineering
dc.relation.isbasedon	10.1016/j.oceaneng.2023.114791
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0405 Oceanography, 0905 Civil Engineering, 0911 Maritime Engineering
dc.subject.classification	Civil Engineering
dc.subject.classification	4005 Civil engineering
dc.subject.classification	4012 Fluid mechanics and thermal engineering
dc.subject.classification	4015 Maritime engineering
dc.title	Study on a three-dimensional variable-stiffness TMD for mitigating bi-directional vibration of monopile offshore wind turbines
dc.type	Journal Article
utslib.citation.volume	281
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	in_progress	*
dc.date.updated	2024-05-10T12:11:56Z
pubs.publication-status	Published
pubs.volume	281

Abstract:

Bi-directional vibrations of offshore wind turbine (OWT) exist due to the misalignment of wind and wave loadings, which induces the structural fatigue failure. At present, monopile offshore wind turbine (MOWT) is widest utilized in worldwide, which is adopted as the research objective in this study. A novel semi-active three-dimensional magnetorheological elastomer (MRE) based tuned mass damper is proposed to suppress a MOWT bi-directional vibration under misaligned wind, wave, seismic loadings. The proposed MRE-based TMD is installed in the nacelle, which presents dual-directional controllable stiffness properties. Its nonlinear behavior is depicted by bi-lateral Bouc-Wen model. A semi-active control framework is developed, in which current-dependent stiffness of MRE-based TMD is tuned for tracing real-time dominant frequency of the MOWT. The numerical results reveal that MRE-based TMD can effectively attenuate the bi-directional dynamic responses of MOWT under various operation conditions. Additionally, the semi-active MRE-based TMD outperforms passive TMD in reducing the peak and RMS displacement of the tower top in both fore-aft (FA) and side-side (SS) directions, especially in operational state. MRE-based TMD also presents strong robustness under the condition of structural stiffness degradation.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/178820