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.

海上风电是一种高效的可再生能源，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。根据英国可再生能源路线图和到2030年海上风电装机容量达到50吉瓦的国家目标，未来几十年将推动更多海上风电场的部署。英国绝大多数海上风力涡轮机均采用单桩基础支撑，单桩基础是通过焊接大厚度钢板制成的。这些支撑结构在使用过程中要承受严酷的循环载荷条件；因此，它们需要针对疲劳失效进行设计，以实现所需的目标寿命（通常为 20 至 25 年）。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的工程解决方案。