电活性聚合物机电耦合及能量转换的发电机理与实验研究

项目名称： 电活性聚合物机电耦合及能量转换的发电机理与实验研究

项目编号： No.51207133

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电气科学与工程学科

项目作者： 林桂娟

作者单位： 厦门理工学院

项目金额： 27万元

中文摘要： 电活性聚合物是柔性机械的智能制造材料，在智能驱动和清洁能源发电领域具有较大的应用前景。项目拟建立电活性聚合物发电机数学模型，揭示电活性聚合物电致大变形过程中的机电耦合模式及能量转换机理：1)应用连续介质力学与分子理论，研究电活性聚合物在大变形过程中电势感应、应力应变、力电失稳、失效模式及许用状态域之间函数关系，探索实现电活性聚合物电致大变形的方法；2)利用有限元方法进行电活性聚合物转换器仿真研究，研究稳态电场中转换器的能量收集模型，分析其转换效率的影响因素，研究提高能量转换效率的优化方法；3)通过电活性聚合物发电实验，在掌握输入-输出的电特性的基础上，尝试混合储能系统及实现方法，研制电活性聚合物发电的低功耗自启动电路；4)以硅树脂电活性聚合物材料搭建发电实验平台，研究硅树脂电活性聚合物材料的应力应变、机械能频率、激励电压等因素对能量转换效率的影响，提出电活性聚合物海洋能发电的应用研究方案。

中文关键词： 电活性聚合物；机电耦合；能量转换；恒电荷；混合储能

英文摘要： Dielectric electro Active polymer(DEAP) is a smart material for soft machines. They have shown broad application as actuator. Meanwhile their advantages in converting mechanical to electrical energy in a generator mode have shown considerable promise. The project developed the mathematical model of DEAP generator based on theory of dielectric elastomers, revealed electromechanical coupling law and energy conversion mechanism during the giant voltage-induced deformation. 1)With the continuum mechanics and molecular pictures, the relationship are studied among electric potential,stress-strain,electromechanical instability,failure Modes,Allowable States Region during the giant deformation. Then the mean is explored to achieve the giant voltage-induced deformation. 2) DEAP transducers of realistic configurations are simulated by the finite element method,then the different models for energy harvesting are achieved with the constant field. The factors are analyzed how to affect energy conversion efficiency. Optimization methods are developed to improve the efficiency of electromechanical energy. 3)Through the experiment on the DEAP generator and distinguishing the input-output power characteristics, those are designed a new type of hybrid energy storage system and a low-power self-priming circuit.4)The prototype has

英文关键词： dielectric electro active polymer；electromechanical coupling；energy conversion；constant charg；hybrid energy storage