介电型电活性聚合物的发电特性研究  

RESEARCH ON THE ENERGY HARVESTING OF DIELECTRIC ELECTROACTIVE POLYMER TRANSDUCER

作　　者：朱银龙[1] 习爽 苏晓芳 刘英[1] 王化明[2] 

机构地区：[1]南京林业大学机械电子工程学院,南京210037 [2]南京航空航天大学机电学院,南京210016

出　　处：《机械强度》2017年第6期1353-1359,共7页Journal of Mechanical Strength

基　　金：国家自然科学基金项目(51305209);江苏省自然科学基金项目(No.BK20160934;BK20130979);江苏政府留学奖学金资助~~

摘　　要：介电型电活性聚合物(Dielectric electroactive polymer,简称DEAP)作为一种新型智能材料,可与风力、水力结合作为一种新型的电能获取形式,将机械能转换为电能。分析DEAP发电机理、发电过程,比较恒电荷、恒电压、恒电场三种工作形式,确定选择恒电荷工作形式。讨论DEAP薄膜的发电机理和工作过程,分析了DEAP换能器的能量转换关系。基于建立的换能器模型,计算出一个工作循环换能器的发电量、输入的机械功和机电能量转换效率,同时确定初始电压、拉伸位移是影响发电量、能量转换效率的主要因素。并对此进行试验研究,试验结果验证了理论分析的准确性。As a new smart material,dielectric electroactive polymer can be used to transforming mechanical energy such as wind power and water power into electrical energy. The energy harvesting mechanisms and working cycles of DEAP transducer were investigated. Three different cycles including constant charges,constant electrical voltage and constant electrical field were compared. Based on the working cycles,the energy conversion between mechanical energy inputted and electrical energy generated have been studied. With the proposed model of DEAP transducer,the force-stroke of generator in the stretching process with voltage on and the retracting process with voltage off were determined. With the force-stroke of generator,the energy generated and energy conversion efficiency were calculated. It is demonstrated that the stretch displacement and bias voltage are the main factors influencing the amount of electrical energy generated and the efficiency of energy conversion. In addition,the theoretical analysis results were validated by the experiments.

关 键 词：介电型电活性聚合物 DEAP 发电特性 能量转换 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]