Critical assessment of end of design life fatigue damage analysis for life-extension of offshore wind infrastructure

设计寿命结束疲劳损伤分析的关键评估，以延长海上风电基础设施的寿命

• 批准号: 2888916
• 金额: --
• 依托单位: University of Strathclyde
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2888916
• 关键词: Critical; assessment; end; design; life

An efficient source of renewable energy, which is increasingly the preferred solution for realising the UK's short- and long-term energy demand, is offshore wind. According to the UK's Renewable Energy Roadmap and the national target to reach up to 50 GW of installed offshore wind capacity by 2030, deployment of further offshore wind farms will be boosted over the coming decades. The dominant majority of the UK's offshore wind turbines are supported using monopile foundations which are fabricated by welding large thickness steel plates. These support structures are subjected to severe cyclic loading condition during service; therefore, they need to be designed against fatigue failure for a desired target life which is typically between 20 and 25 years. The aim of this PhD project is to evaluate the level of fatigue damage in the support structures at the end of initial design life and explore possible engineering solutions for life extension of the existing assets.

可再生能源的一个有效来源是海上风电，它越来越成为实现英国短期和长期能源需求的首选解决方案。根据英国的可再生能源路线图和国家目标，到2030年海上风电装机容量将达到50吉瓦，未来几十年将进一步推动海上风电场的部署。英国绝大多数的海上风力涡轮机都是使用焊接大厚度钢板制造的坚固基础来支撑的。这些支撑结构在使用期间经受严重的循环载荷条件;因此，它们需要被设计成抵抗疲劳失效，以达到通常在20年和25年之间的期望的目标寿命。该博士项目的目的是评估初始设计寿命结束时支撑结构的疲劳损伤水平，并探索延长现有资产寿命的可能工程解决方案。