Chuanfu Wang , Jiahao Chen , Shiting Wang , Shaotao Fan , Hao Ren , Donghua Liu
{"title":"减缓半潜式浮动海上风力涡轮机变桨运动的被动陀螺稳定器的灵敏度分析与优化","authors":"Chuanfu Wang , Jiahao Chen , Shiting Wang , Shaotao Fan , Hao Ren , Donghua Liu","doi":"10.1016/j.oceaneng.2025.121147","DOIUrl":null,"url":null,"abstract":"<div><div>Floating offshore wind turbines (FOWTs) subjected to combined wind and wave loads experience significant pitch motion, resulting in reduced energy production and increased structural damage. This study proposes the utilization of passive gyrostabilizers as an effective solution to mitigate these issues. Initially, a coupled dynamic model for a semi-submersible FOWT incorporating passive gyrostabilizers was developed using an in-house simulation tool. Building on this framework, the study investigated the effects of gyrostabilizer quantity and arrangement strategies, gyro-rotor speeds, and precession damping coefficients on its pitch reduction. Additionally, the performance of the gyrostabilizers under varying wind and wave conditions was analyzed to identify key influencing factors. Finally, genetic algorithm (GA)-based parameters optimization of the passive gyrostabilizers was conducted, achieving a maximum pitch-reduction rate of 93.8 %. However, when accounting for the power consumption of the gyrostabilizers, an optimized pitch-reduction rate of 80.7 % was identified. These findings contribute valuable insights into the potential of gyrostabilizers for FOWT applications and signify a significant advancement in the state of the art in this field.</div></div>","PeriodicalId":19403,"journal":{"name":"Ocean Engineering","volume":"329 ","pages":""},"PeriodicalIF":5.5000,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Sensitivity analysis and optimization of passive gyrostabilizers to mitigate pitch motion of a semi-submersible floating offshore wind turbine\",\"authors\":\"Chuanfu Wang , Jiahao Chen , Shiting Wang , Shaotao Fan , Hao Ren , Donghua Liu\",\"doi\":\"10.1016/j.oceaneng.2025.121147\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Floating offshore wind turbines (FOWTs) subjected to combined wind and wave loads experience significant pitch motion, resulting in reduced energy production and increased structural damage. This study proposes the utilization of passive gyrostabilizers as an effective solution to mitigate these issues. Initially, a coupled dynamic model for a semi-submersible FOWT incorporating passive gyrostabilizers was developed using an in-house simulation tool. Building on this framework, the study investigated the effects of gyrostabilizer quantity and arrangement strategies, gyro-rotor speeds, and precession damping coefficients on its pitch reduction. Additionally, the performance of the gyrostabilizers under varying wind and wave conditions was analyzed to identify key influencing factors. Finally, genetic algorithm (GA)-based parameters optimization of the passive gyrostabilizers was conducted, achieving a maximum pitch-reduction rate of 93.8 %. However, when accounting for the power consumption of the gyrostabilizers, an optimized pitch-reduction rate of 80.7 % was identified. These findings contribute valuable insights into the potential of gyrostabilizers for FOWT applications and signify a significant advancement in the state of the art in this field.</div></div>\",\"PeriodicalId\":19403,\"journal\":{\"name\":\"Ocean Engineering\",\"volume\":\"329 \",\"pages\":\"\"},\"PeriodicalIF\":5.5000,\"publicationDate\":\"2025-04-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ocean Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0029801825008601\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CIVIL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ocean Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0029801825008601","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}
Sensitivity analysis and optimization of passive gyrostabilizers to mitigate pitch motion of a semi-submersible floating offshore wind turbine
Floating offshore wind turbines (FOWTs) subjected to combined wind and wave loads experience significant pitch motion, resulting in reduced energy production and increased structural damage. This study proposes the utilization of passive gyrostabilizers as an effective solution to mitigate these issues. Initially, a coupled dynamic model for a semi-submersible FOWT incorporating passive gyrostabilizers was developed using an in-house simulation tool. Building on this framework, the study investigated the effects of gyrostabilizer quantity and arrangement strategies, gyro-rotor speeds, and precession damping coefficients on its pitch reduction. Additionally, the performance of the gyrostabilizers under varying wind and wave conditions was analyzed to identify key influencing factors. Finally, genetic algorithm (GA)-based parameters optimization of the passive gyrostabilizers was conducted, achieving a maximum pitch-reduction rate of 93.8 %. However, when accounting for the power consumption of the gyrostabilizers, an optimized pitch-reduction rate of 80.7 % was identified. These findings contribute valuable insights into the potential of gyrostabilizers for FOWT applications and signify a significant advancement in the state of the art in this field.
期刊介绍:
Ocean Engineering provides a medium for the publication of original research and development work in the field of ocean engineering. Ocean Engineering seeks papers in the following topics.