Vibration control of offshore wind turbine under multiple hazards using single variable-stiffness tuned mass damper

Leng, D; Yi, Y; Xu, K; Li, Y; Liu, G; Xie, Y

Vibration control of offshore wind turbine under multiple hazards using single variable-stiffness tuned mass damper

Leng, D Yi, Y Xu, K Li, Y

Liu, G Xie, Y

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Ocean Engineering, 2021, 236
Issue Date:: 2021-07-15

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Field	Value	Language
dc.contributor.author	Leng, D
dc.contributor.author	Yi, Y
dc.contributor.author	Xu, K
dc.contributor.author	Li, Y https://orcid.org/0000-0002-6720-8493
dc.contributor.author	Liu, G
dc.contributor.author	Xie, Y
dc.date.accessioned	2022-06-16T23:59:14Z
dc.date.available	2022-06-16T23:59:14Z
dc.date.issued	2021-07-15
dc.identifier.citation	Ocean Engineering, 2021, 236
dc.identifier.issn	0029-8018
dc.identifier.issn	1873-5258
dc.identifier.uri	http://hdl.handle.net/10453/158216
dc.description.abstract	With high flexibility and low damping, offshore wind turbines (OWTs) are prone to external vibrations such as wind, wave and earthquake, either attacked individually or as combined loading cases. This study proposes a semi-active variable-stiffness tuned mass damper (VSTMD) with magnetorheological elastomer (MRE) materials to mitigate undesired dynamic responses of OWT. A jacket supported OWT with MRE-TMD installed at the top of the tower is adopted as an example to demonstrate the effectiveness of the proposed design under multiple hazards. A semi-active frequency tracing algorithm is proposed through which the current-dependent stiffness of MRE-TMD is controlled by tracking the acceleration of OWT tower. The numerical results demonstrate that the semi-active MRE-TMD can effectively attenuate the dynamic responses of OWT under multi-hazard loadings, and it outperforms the passive TMD in reducing the peak and RMS displacements of tower structure. Robustness analysis of semi-active MRE-TMD is also validated by considering OWT sudden loss of partial stiffness under multiple-loadings.
dc.language	English
dc.publisher	Elsevier
dc.relation.ispartof	Ocean Engineering
dc.relation.isbasedon	10.1016/j.oceaneng.2021.109473
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0405 Oceanography, 0905 Civil Engineering, 0911 Maritime Engineering
dc.subject.classification	Civil Engineering
dc.title	Vibration control of offshore wind turbine under multiple hazards using single variable-stiffness tuned mass damper
dc.type	Journal Article
utslib.citation.volume	236
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	2022-06-16T23:59:12Z
pubs.publication-status	Published online
pubs.volume	236

Abstract:

With high flexibility and low damping, offshore wind turbines (OWTs) are prone to external vibrations such as wind, wave and earthquake, either attacked individually or as combined loading cases. This study proposes a semi-active variable-stiffness tuned mass damper (VSTMD) with magnetorheological elastomer (MRE) materials to mitigate undesired dynamic responses of OWT. A jacket supported OWT with MRE-TMD installed at the top of the tower is adopted as an example to demonstrate the effectiveness of the proposed design under multiple hazards. A semi-active frequency tracing algorithm is proposed through which the current-dependent stiffness of MRE-TMD is controlled by tracking the acceleration of OWT tower. The numerical results demonstrate that the semi-active MRE-TMD can effectively attenuate the dynamic responses of OWT under multi-hazard loadings, and it outperforms the passive TMD in reducing the peak and RMS displacements of tower structure. Robustness analysis of semi-active MRE-TMD is also validated by considering OWT sudden loss of partial stiffness under multiple-loadings.

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http://hdl.handle.net/10453/158216