STTR Phase II: Fabrication and Structural Testing of a 3D Concrete Printed Anchor for Floating Offshore Wind

STTR 第二阶段：用于浮动海上风电的 3D 混凝土打印锚的制造和结构测试

• 批准号: 2333306
• 负责人: Jason Cotrell
• 金额: $ 99.95万
• 依托单位: RCAM TECHNOLOGIES
• 依托单位国家: 美国
• 项目类别: Cooperative Agreement
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-03-15 至 2026-02-28
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2333306&HistoricalAwards=false
• 关键词: STTR; Phase; II; Fabrication; Structural

The broader/commercial impact of this Small Business Technology Transfer (STTR) Phase II project is to lower the cost and accelerate deployment of clean renewable energy by advancing a 3D printed concrete anchor for floating offshore wind turbines. The anchor has potential to become the lowest cost, most scalable, and highest domestic content anchor solution, helping to maximize US jobs and economic benefits. The project advances the commercial potential of the technology by validating the structural design and mooring line connection, de-risking the anchor sufficiently to secure future investments. The project will enhance scientific and technology understanding by advancing U.S. capabilities in state-of-the-art 3D concrete printing technologies, enhancing industry and academia partnerships with the STTR university partner, and by performing research, development, and stakeholder outreach (including tours for over 2000 students, teachers, policymakers, investors, and government officials) at a port-side facility in Los Angeles, California. This Small Business Technology Transfer (STTR) Phase II project will advance the technology readiness level of an innovative, reliable, and low-cost 3D printed concrete suction anchor for mooring floating offshore wind turbines. Floating offshore wind power is poised for rapid growth in the United States, where approximately 2/3 of the offshore wind energy potential exists over waters deep enough to require the use of floating platforms. However, cost remains an obstacle to extensive deployment of floating wind. Development of low-cost anchoring presents an important opportunity for cost reduction. The key project objective is to develop a low-cost suction anchor capable of resisting extreme tension loads that arise where the mooring line connects to the anchor. The proposed research includes: 1. developing optimized detailed designs of anchors and mooring line connections manufactured using a 3D concrete printing process, 2. fabricating high-fidelity anchor prototypes, 3. validating the prototype anchor design via laboratory structural testing and finite element analysis, and 4. updating models for anchor manufacturing throughput, cost, and lifecycle emissions impacts. The anticipated technical results include an experimentally validated structural design and manufacturing approach for the anchor and corresponding models for production throughput, cost, and lifecycle impacts.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.

这一小型企业技术转移（STTR）II期项目的更广泛/商业影响是通过推进3D印刷混凝土锚来降低可再生能源的成本和加速，以浮动的海上风力涡轮机。锚有可能成为最低成本，最可扩展性和最高国内内容锚点解决方案，从而有助于最大化美国就业机会和经济利益。该项目通过验证结构设计和系泊线连接，使锚点充分危险以确保未来的投资，从而提高了技术的商业潜力。该项目将通过在最新的3D混凝土印刷技术中提高美国的能力，增强与STTR大学合作伙伴的行业和学术伙伴关系，并进行研究，发展以及利益相关者的外展（包括2000多个超过2000年的学生，教师，政治家，投资者和政府官员的巡回演出），以增强科学和技术的理解。这个小型企业技术转移（STTR）II期项目将提高创新，可靠和低成本的3D印刷混凝土吸力锚的技术准备水平，用于系泊浮动海上风力涡轮机。在美国，浮动海上风能有助于快速增长，那里的海上风能中约有2/3在水上存在足够深的水域，需要使用浮动平台。但是，成本仍然是广泛部署漂浮风的障碍。低成本锚定的开发为降低成本提供了重要的机会。关键的项目目标是开发低成本的吸力锚，能够抵抗系泊线连接到锚的极端张力载荷。拟议的研究包括：1。使用3D混凝土打印过程制造的优化的锚定线和系泊线连接，2。制造高效率锚原型，3。通过实验室结构测试和有限的有限元分析验证原型锚点设计，以及4。对锚定模型的模型，以使生产模型通过锚定覆盖跨度，成本，成本，成本，成本和生命力效果。预期的技术结果包括通过实验验证的锚定结构设计和制造方法，以及生产吞吐量，成本和生命周期影响的相应模型。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛的影响审查标准通过评估来进行评估的。