eprintid: 10189606
rev_number: 7
eprint_status: archive
userid: 699
dir: disk0/10/18/96/06
datestamp: 2024-03-25 14:58:34
lastmod: 2024-03-25 14:58:34
status_changed: 2024-03-25 14:58:34
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Lin, Jiahua
creators_name: Wang, Yangwei
creators_name: Zhang, Guanchen
creators_name: Liu, Yuanchang
creators_name: Zhang, Jun
title: Novel tuned mass dampers installed inside tower of spar offshore floating wind turbines
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F45
keywords: Offshore floating wind turbine, Tuned mass damper, Simplified dynamic model, Stroke limitation, Vibration suppression
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Compared to fixed-bottom wind turbines, offshore floating wind turbines (OFWTs) are subject to more prominent forced vibrations that require control measures. Considering the limited space within the nacelle, this paper proposed a novel methodology for designing a tuned mass dampers (TMD) installed inside the tower. To achieve an optimal design, a 4-degree-of-freedom simplify dynamic model is established to predict the vibration characteristics of spar OFWTs quickly and accurately. A new TMD configuration installed inside the tower is proposed to reduce the effect of space limitation and to determine the stroke limitation Based on the proposed methodology, the stiffness and damping of the TMD are designed and optimized, and then the detailed structural parameters are calculated. The comparison results show that, the proposed TMD achieves a maximum peak suppression rate of 90.67% in tower top fore-aft deformation power spectral density, which is 19.92% higher than that of the TMD designed by the formula method. The proposed TMD can effectively address the problem caused by the space limitation within nacelle, and provide superior vibration suppression for spar OFWTs.
date: 2024-03-20
date_type: published
publisher: Elsevier
official_url: http://dx.doi.org/10.1016/j.oceaneng.2024.117412
full_text_type: other
language: eng
verified: verified_manual
elements_id: 2261857
doi: 10.1016/j.oceaneng.2024.117412
lyricists_name: Liu, Yuanchang
lyricists_id: YLIUA09
actors_name: Liu, Yuanchang
actors_id: YLIUA09
actors_role: owner
full_text_status: restricted
publication: Ocean Engineering
volume: 301
article_number: 117412
citation:        Lin, Jiahua;    Wang, Yangwei;    Zhang, Guanchen;    Liu, Yuanchang;    Zhang, Jun;      (2024)    Novel tuned mass dampers installed inside tower of spar offshore floating wind turbines.                   Ocean Engineering , 301     , Article 117412.  10.1016/j.oceaneng.2024.117412 <https://doi.org/10.1016/j.oceaneng.2024.117412>.      
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10189606/1/Accepted%20version.pdf