EAP换能单元发电量的影响因素分析  

Analysis of Influencing Factors of Power Generation of EAP Transducing Unit

作　　者：赵丰刚 陈洁[1] 郑国华[2] 曾浩然 符悦 ZHAO Fenggang;CHEN Jie;ZHENG Guohua;ZENG Haoran;FU Yue(College of Electric Engineering,Xinjiang University,Urumqi 830047,China;College of Chemistry and Chemical Engineering,Xinjiang University,Urumqi 830047,China)

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830047 [2]新疆大学化学化工学院,新疆乌鲁木齐830047

出　　处：《压电与声光》2019年第2期295-300,共6页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51467020);新疆维吾尔自治区高校科研基金资助项目(XJEDU20181005)

摘　　要：电活性聚合物(EAP)作为一种新型电活性软体功能材料,具有多种优点,用于能量收集具有巨大的应用潜力。该文从宏观和微观两个层面阐述了介电材料用于能量收集的机电转化原理,以EAP换能单元为例,说明了EAP换能单元怎样将机械能转化为电能,并阐述了介电弹性体发电机理,为后面EAP换能单元的发电提供理论依据。以其他学者研究得到影响EAP换能单元发电量的因素为基础,通过正交试验得到EAP换能单元发电特性和最佳工作条件,并对试验的可靠性进行了分析。实验结果表明,各因素对EAP材料发电的影响大小顺序为:EAP膜面积>拉伸位移>预加电压>预拉伸率>EAP膜厚度。换能单元最佳工作条件为预加电压1 000 V,预拉伸率400%,拉伸位移4 cm,膜面积62.41 cm^2,EAP膜厚度1 mm。As a new type of electroactive soft functional material,the electroactive polymer(EAP)has many advantages and has great application potential for energy harvesting.This paper describes the principle of electromechanical conversion of dielectric materials for energy harvesting from both macroscopic and microscopic perspectives.Taking EAP transducing units as an example,this paper explains how EAP transducing units convert mechanical energy into electrical energy.The mechanism of dielectric elastomer generator is described,which provides theoretical basis for power generation of EAP energy conversion unit in the future.On the basis of other scholars'research,the factors affecting the generation capacity of EAP energy conversion unit are obtained.Through orthogonal test,the generation characteristics and optimal working conditions of EAP energy conversion unit are obtained,and the reliability of the test is analyzed.The experimental results show that the order of the factors affecting the power generation of EAP materials is as follows:EAP film area>tensile displacement>pre-applied voltage> pre-stretch rate>EAP film thickness.The best working conditions of the transducer unit are as follows:pre-applied voltage of 1 000 V,pre-stretch rate of 400%,tensile displacement of 4 cm,film area of 62.41 cm^2,EAP film thickness of 1 mm.

关 键 词：电活性聚合物 材料发电 EAP换能单元 正交试验 能量转化 

分 类 号：TM215.1[一般工业技术—材料科学与工程] TB34[电气工程—电工理论与新技术]