Energy Harvesting in Flows Using Parasitic Aeroelastic Structures and Nonlinear Switching Electronics

使用寄生气动弹性结构和非线性开关电子器件在流动中收集能量

• 批准号: 1231816
• 负责人: Edwin Cowen
• 金额: $ 36万
• 依托单位: Cornell 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: 2013-10-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1231816&HistoricalAwards=false
• 关键词: Energy; Harvesting; Flows; Using; Parasitic

Research Objectives and Approach: The research objective is to develop a novel energy harvesting method for self-powered devices. If one could develop sensing circuits that required no power, then the amount of wiring which leads directly to maintenance and production costs could be greatly reduced. It is proposed to develop energy harvesters to create sensor networks that could constantly report on the health of a variety of critical structures. The proposed approach will develop methods of power harvesting from fluid flow using aeroelastic systems and smart power electronic circuits. Using piezoelectric structures, these devices will be capable of converting flow-induced vibrations into storable electrical energy. Nonlinear switching circuits will be developed to enhance the efficiency of transducer electromechanical power extraction.Intellectual Merit: This work also represents fundamental research into a heretofore untapped source of energy for self-powered systems, i.e., the movement of fluid air and water. The results of this work will give engineers the analytical tools to determine how to harvest power from fluid flows. This could aid in the development of condition-based systems of maintenance for future and existing infrastructures.Broader impact: This project will disseminate information for K-12 students by creating teaching modules in cooperation with local middle and high school teachers. These modules will be made available to schools on the web to demonstrate the idea of energy harvesting from the environment. Local teachers will be invited to a workshop at Cornell with their students to help create lessons and experiments for use in K-12 classrooms.

研究目标和方法：研究目标是为自动设备开发一种新型的能量收集方法。如果人们可以开发不需要电力的传感电路，那么直接导致维护和生产成本的接线量可以大大降低。建议开发能源收割机来创建传感器网络，以不断报告各种关键结构的健康。所提出的方法将使用气体弹性系统和智能电动电路从流体流中开发出功率收集的方法。 使用压电结构，这些设备将能够将流动诱导的振动转换为可储存的电能。将开发非线性开关电路，以提高换能器机电能力提取的效率。智能优点：这项工作还代表了对迄今无开发的自动化系统尚未开发的能源的基础研究，即流体空气和水的运动。这项工作的结果将为工程师提供分析工具，以确定如何从流体流中收获功率。这可能有助于开发基于条件的维护系统，以实现未来和现有的基础设施。BroaderImpact：该项目将通过与当地的中学和高中教师合作创建教学模块来传播K-12学生的信息。这些模块将在网络上提供给学校，以证明从环境中收获能量的概念。将邀请当地老师与学生一起参加康奈尔大学的研讨会，以帮助创建课程和实验，以便在K-12教室中使用。