鄂世举,朱喜林,曹建波,朱黎辉,惠安峰.介电弹性体材料机械能-电能转换特性[J].农业机械学报,2010,41(9):194-198.
.Electrical Energy Conversion for Dielectric Elastomer Film[J].Transactions of the Chinese Society for Agricultural Machinery,2010,41(9):194-198.
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介电弹性体材料机械能-电能转换特性   [下载全文]
Electrical Energy Conversion for Dielectric Elastomer Film   [Download Pdf][in English]
  
DOI:10.3969/j.issn.1000-1298.[year].[issue].[sequence]
中文关键词:  介电弹性体  发电  转换特性  仿真  实验
基金项目:
鄂世举  朱喜林  曹建波  朱黎辉  惠安峰
浙江师范大学
中文摘要:介电弹性体功能材料是具有优异性能的电场活化聚合物,可在驱动和发电两种模式下工作。依据介电弹性体薄膜材料的结构特征,分析了发电模式下介电弹性体材料发电的基本机理,即可变电容原理;建立了该材料的理论模型,得到麦克斯韦效应可作为压电效应处理的结果,并确定了对应压电效应的等效参数。通过仿真及实验分析了该材料的电能转换过程;分析了发电过程中电场与材料弹性回复力之间的关系,及其对发电效率的影响,确定了介电弹性体薄膜材料的发电周期过程。
Key Words:
Abstract:As a new type of electroactive polymer (EAP), dielectric elastomers can work in both actuator and generator modes. Dielectric elastomers (DE) can achieve good performance in a generator mode, such as high energy density, good impedance matching to many energy sources, low cost, etc. Based on the structure of dielectric elastomers film, the fundamentals of dielectric elastomers, namely fundamentals of alterable capacitance are discussed. The theoretical models of dielectric elastomers film were analyzed, and the conclusion that Maxwell stress effects could be treated as a piezoelectric material with an effective piezoelectric coefficient was drawn. Power energy conversion cycle was analyzed by simulation and experiments, and the experimental curves of output voltages were investigated. The relation between electric field and elastic restoring stress, and its influence on power generating efficiency, were discussed. At last, the mechanical cycle of power generation for dielectric elastomers was determined approximately.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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