PFI-TT: Cost-Effective Anchor for Offshore, Floating, Energy-harvesting Wind Towers

PFI-TT：用于海上、浮动、能量收集风塔的经济高效的锚

• 批准号: 2214009
• 负责人: Charles Aubeny
• 金额: $ 25万
• 依托单位: Texas A&M Engineering Experiment Station
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2214009&HistoricalAwards=false
• 关键词: PFI; TT; Cost; Effective; Anchor

The broader impact/commercial potential of this Partnerships for Innovation - Technology Translation (PFI-TT) project is the reduction of capital costs for floating, offshore, wind power development. An estimated 60% of offshore wind occurs in deep waters requiring floating units. The proposed technology is adaptable to any type of mooring system for floating structures. This adaptability provides a high degree of flexibility in system design to accommodate environmental constraints and competing ocean uses such as commercial fisheries. The high efficiency and compact design is intended to minimize material requirements (and therefore supply chain issues) and reduce the required number and size of transport and installation vessels, which are critical constraints affecting offshore wind power development. The technology is designed to be installed into the seabed using methods which minimize impacts (e.g. noise) on marine life. This research will also provide training to a postdoctoral student on innovation, intellectual property protection, and commercialization of research products. The proposed project will focus on the commercialization of a new anchor design for floating offshore wind turbines. A key feature of the anchor is its high efficiency, which permits a compact size that is still capable of resisting the load demand from 15 MW or larger wind turbines. The anchor is installable in virtually any soil profile and can provide a high vertical load demand, overcoming major limitations of most existing anchors. As the load capacity does not depend on transient suction, the anchor capacity does not diminish under sustained loading. The circular symmetry permits use in a shared anchor system when site conditions permit. The anchor can be deployed in catenary, taut, and tension-leg systems, maximizing the flexibility of mooring system designers to accommodate environmental constraints. A key task in this research will be reduced scale model tests simulating the insertion and pullout of the anchor, so installation disturbance effects can be assessed. This project also seeks to refine the structural design of the anchor and the installation follower system with a view toward minimizing fatigue damage. This research may produce an anchor and follower system design fully ready for field-scale pilot tests.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这种创新合作伙伴关系的更广泛的影响/商业潜力 - 技术翻译（PFI -TT）项目是降低浮动，海上，风能开发的资本成本。估计有60％的海上风发生在需要浮动单元的深水中。 所提出的技术适用于任何类型的系泊系统，用于浮动结构。 这种适应性为系统设计提供了高度的灵活性，以适应环境限制和竞争海洋用途，例如商业渔业。高效率和紧凑的设计旨在最大程度地减少材料要求（以及供应链问题），并减少运输和安装船的要求数量和大小，这是影响海上风能开发的关键限制。该技术旨在使用最小化对海洋生物的影响（例如噪声）的方法将其安装到海床中。这项研究还将为博士后生提供有关创新，知识产权保护和研究产品商业化的培训。拟议的项目将着重于用于浮动海上风力涡轮机的新锚设计的商业化。锚点的一个关键特征是其高效率，它允许紧凑的尺寸仍然能够抵抗15 MW或更大的风力涡轮机的负载需求。该锚几乎可以在任何土壤轮廓中安装，并且可以提供高垂直负载需求，从而克服了大多数现有锚的主要限制。由于负载能力不取决于瞬态吸力，因此在持续负载下不会减小锚固能力。现场条件允许时，圆形对称性允许在共享锚系统中使用。锚可以部署在链式，拉紧和张力 - 腿系统中，最大程度地提高系泊系统设计师以适应环境限制的灵活性。这项研究中的关键任务将减少模型测试，以模拟锚定的插入和拔出，因此可以评估安装干扰效果。该项目还旨在完善锚点和安装跟随系统的结构设计，以最大程度地减少疲劳损害。这项研究可能会产生锚定和追随者系统的设计，以准备进行现场规模的试点测试。该奖项反映了NSF的法定任务，并被认为是使用基金会的知识分子优点和更广泛的影响评估标准的评估值得支持的。