CAREER: Offshore Wind Turbines Subjected to Hurricanes: Simulation of Wind-Wave-Structure Interaction and Aerodynamic Load Reduction

职业：遭受飓风影响的海上风力发电机：风-波-结构相互作用的模拟和气动载荷减少

• 批准号: 1252736
• 负责人: Sungmoon Jung
• 金额: $ 40万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1252736&HistoricalAwards=false
• 关键词: CAREER; Offshore; Wind; Turbines; Subjected

The research objectives of this Faculty Early Career Development (CAREER) project are to investigate the behavior of offshore wind turbines subjected to hurricane loads and to develop novel approaches that can reduce the damage. Specific research activities include: (1) to establish a time-domain analysis procedure that considers interactions of wave, wind, soil, and structure; (2) to study the behavior of wind turbine using the loading consistent with the field observations of hurricanes; (3) to devise a piezoelectric surface actuation mechanism to aerodynamically reduce the wind forces; and (4) to explore the reconfiguration of the structure to reduce the drag forces. The new time-domain formulation of the wind turbine tower will be integrated with the turbine analysis program FAST developed and maintained by the National Renewable Energy Laboratory. Recent field observations of hurricane characteristics will be utilized to define the loading. Wind tunnel testing of scaled models will also be conducted to obtain necessary parameters for numerical simulation, and to quantify the effects of the piezoelectric surface actuation in reducing the drag forces.Offshore wind farms have enormous energy potential, yet one of the major concerns is vulnerability of wind turbines in hurricanes. The results of this project can reduce risk to wind turbine structures in hurricanes and can contribute to wider adoption of the offshore wind energy. The Principal Investigator will collaborate with the National Renewable Energy Laboratory so that the research outcome is accessible to a wider audience. The research project is integrated with education through involvement of undergraduate and graduate students as well as involvement of underrepresented students through the college's partnership with a minority-serving institution. In order to increase the number of engineers who can work in renewable energy field, college-wide collaboration in renewable energy and the Florida State University (FSU) Office of Distance Learning will be utilized. The outreach of this project will involve high school students in research through the FSU Young Scholars Program. Annual workshops for K-12 teachers will be offered with the help of KidWind. Through these workshops, the teachers will develop teaching modules on wind energy to enhance their science curricula.

该教师早期职业发展（CAREER）项目的研究目标是调查海上风力涡轮机在飓风载荷下的行为，并开发可以减少损害的新方法。具体的研究活动包括：（1）建立一个考虑波浪、风、土壤和结构相互作用的时域分析程序;（2）使用与飓风现场观测一致的载荷来研究风力涡轮机的行为;（3）设计一种压电表面驱动机制来空气动力地减小风力;（4）探索结构的重构以减小阻力。风力涡轮机塔架的新时域公式将与国家可再生能源实验室开发和维护的涡轮机分析程序FAST集成。将利用最近对飓风特性的实地观察来确定载荷。此外，还将对比例模型进行风洞测试，以获得数值模拟所需的参数，并量化压电表面驱动在减少阻力方面的效果。海上风力发电场具有巨大的能源潜力，但其中一个主要问题是风力涡轮机在飓风中的脆弱性。该项目的结果可以降低飓风中风力涡轮机结构的风险，并有助于更广泛地采用海上风能。首席研究员将与国家可再生能源实验室合作，以便更广泛的受众能够获得研究成果。该研究项目通过本科生和研究生的参与以及代表性不足的学生通过学院与少数民族服务机构的伙伴关系的参与与教育相结合。为了增加谁可以在可再生能源领域工作的工程师的数量，在可再生能源和佛罗里达州立大学（FSU）远程学习办公室的大学范围内的合作将被利用。该项目的推广将通过FSU青年学者计划让高中生参与研究。在KidWind的帮助下，将为K-12教师举办年度研讨会。通过这些工作坊，教师将开发风能教学模块，以加强他们的科学课程。