电活性聚合物微型发电机

通过实验分析了电活性聚合物在静电场中将机械能转换为电能的内部机理,研究了电活性聚合物发电原理,定量分析了电活性聚合物产生的电能。运用非线性连续介质力学理论,分析了Yeoh模型、Mooney-Rivlin模型和Ogden模型的不同应变能函数,建立了电活性聚合物变形特性的数学模型。讨论了电活性聚合物在不同状态下的力学特性,构建了能量收集方程及运动学方程。最后,基于电活性聚合物发电原理,采用丹佛斯生产的电活性聚合物材料建立了风力发电机实验装置平台。实验结果表明:电活性聚合物在10%应变状态下,充电电压为1200V时,一次循环收集的电能为13.7mJ。这些实验为电活性聚合物致动器、传感器和微型发电机的研究奠定了理论基础。

Micro-power generator on dielectric electro active polymer

According to the experimental analysis on the energy transformation of Dielectric Electro Active Polymers (DEAPs) from mechanical energies to electric powers in a static-electric field, its mechanism of electric power generation was studied. The electric energies generated from DEAP were quantitatively researched, then a mathematical model on the DEAP's deformation property was established by using the strain energy function theory from the Yeoh model, Mooney-Rivlin model and Ogden model. Furthermore, the mechanical characteristics of DEAPs were discussed in different deformations, and the scavenged energy equation and motion equation were deduced. Finally, on the basis of the power generation mechanism of DEAPs, the prototype of a micro-wind-powered generator adopting the DEAP materials from Danfoss was developed. Experimental results show that the scavenging energy is 13.7 mJ in one cycle when the DEAP is in a strain of 10% and an applying voltage of 1 200 V. These experiments lay the theoretic foundation for actuators, sensors and micro-generators of DEAPs.