Characterisation of hydrodynamic loads on floating Wind Turbine Generator substructures

浮动风力发电机下部结构上的水动力载荷特征

• 批准号: 2434833
• 金额: --
• 依托单位: University of Edinburgh
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2434833
• 关键词: Characterisation; hydrodynamic; loads; floating; Wind

The Stiesdal TetraSub platform for offshore wind turbine generators (WTG), is a semi-submersible floating concept comprising of three pairs of ballast tasks triangularly positioned around a central column. The floating foundation is moored by taut mooring lines that can be suitable for a range of water depths.Currently, as part of the front-end engineering design (FEED) process and load assessment, extreme wave loading on floating platforms is predicted using a combination of linear wave theory and the Morison equation, followed by the application of computational fluid dynamics (CFD) and finite element analysis (FEA). This approach leads to the creation of multiple system models which can be an inefficient and ineffective approach.Furthermore, similar methods are applied when predicting wave run-up on floating structures; this is typically estimated using model scale tank testing combined with CFD results. As with predicting extreme loads, these methods have a number of shortcomings, leading to over-engineered systems, which effect the operation, survivability, and cost of the system

用于海上风力涡轮发电机 (WTG) 的 Stiesdal TetraSub 平台是一种半潜式浮动概念，由围绕中心柱呈三角形放置的三对压载任务组成。浮动基础通过拉紧的系泊线进行系泊，适用于各种水深。目前，作为前端工程设计 (FEED) 过程和载荷评估的一部分，浮动平台上的极端波浪载荷是通过组合预测的线性波理论和莫里森方程，然后是计算流体动力学（CFD）和有限元分析（FEA）的应用。这种方法会导致创建多个系统模型，这可能是一种低效且无效的方法。此外，在预测浮动结构上的波浪爬升时也应用类似的方法；这通常是使用模型规模储罐测试结合 CFD 结果来估计的。与预测极端负载一样，这些方法也有许多缺点，导致系统过度设计，从而影响系统的运行、生存能力和成本