农业机械学报2012，Vol.43Issue(9)：202-208,7.DOI:10.6041/j.issn.1000-1298.2012.09.037
介电弹性体圆柱形驱动器静态特性分析
Static Characteristic of Dielectric Elastomer Cylindrical Actuator
摘要
Abstract
Dielectric elastomer actuators are operated in static domain. Aiming at the influence of the material property of dielectric elastomer and the structure of cylindrical actuator on the static characteristic, the main influencing factors on axial force of dielectric elastomer cylindrical actuator were studied. Adopting hyperelastic Yeoh model and simulation software ABAQUS, the axial force change of cylindrical actuator was analyzed under the condition of dielectric elastomer side lateral contraction, circumferential relaxation after convolution and compression between film layers. Compared with the actual actuator dimension, it is found that the circumferential relaxation after convolution is the most influential factor with respect to the axial force of cylindrical actuator, and the error is up to 25. 9% . The two latter influence factors were taken into account and the error is less than 5% between the calculated result and the experiment. Finally, the quasi-static stiffness of cylindrical actuators was further studied, and the conclusion was gotten through the experiments that the film layer slippage can not be negligible when cylindrical actuator experiences large displacement.关键词
介电弹性体/圆柱形驱动器/静态特性/准静态刚度Key words
Dielectric elastomer/ Cylindrical actuator, Static characteristic/ Quasi-static stiffness分类
信息技术与安全科学引用本文复制引用
罗华安,王化明,游有鹏..介电弹性体圆柱形驱动器静态特性分析[J].农业机械学报,2012,43(9):202-208,7.基金项目
国家自然科学基金资助项目(50975139)、江苏省自然科学基金资助项目(BK2011735)、中国博士后科学基金资助项目(200902684)和南京航空航天大学基本科研业务费资助项目(NS2012048) （50975139）
