ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

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.