Papers by Author: Jian Bo Cao

Abstract: Dielectric elastomer functional materials are new polymer with excellent performance, particularly suitable for power generation of low frequency and large deformation energy source. Based on the dielectric elastomer film material structure, the power generation principle of dielectric elastomer material was discussed, and the influence on the electrical conversion efficiency from elastomer material elongation and area was analyzed by the experiments. The results show that output charge voltage was directly proportional to the size and elongation of the material. This provides the basis for dielectric elastomer material application in the electricity generation.

Abstract: Under the dual pressures of the energy crisis and environmental protection, electric cars have been actively developed. Aiming at the classical attractions of China, an antique-style electric sightseeing cars was designed through studying the body shape design principles and understanding the basic structure of the electric sightseeing cars. Its 3D modeling was designed by UG software. The electric sightseeing cars have the art features of the Qin Terracotta Warriors and copper vehicle and could adapt to the corresponding attraction, and have a high practical value.

Abstract: Traditional coating shell marking process is complex, has long production period, high labor intensity, and endangers health. In order to solve these problems, this paper studied and designed a kind of automatic production line of precision molding in coating shell making process. The production line was controlled by a single-chip microcomputer to automatically achieve the process of dipping, sanding, hardening and drying. It not only improved work efficiency and saved labor, but also reduced the body harm of workers.

Abstract: E-ACE material membrane drive is studied. Firstly, the three existed strain energy function model are analysised by theroy under uniaxial tension and biaxial tension，then building model and simulation study for it with ANSYS software to compare to experimental results. The result indicate that their curve are almost same.

Abstract: By researching on the main factors affecting the active zone area strain of electroactive dielectric elastomers, the suitable conditions of area strain for the material in the application as artificial muscles actuator was determined. In the experiments, the strain characteristics of the material was investigated under uniaxial pre-stretching, uniform biaxial pre-stretching and non-uniform biaxial pre-stretching respectively. In addition, the strain rates of the materials active zone under different ratio of the active zone to the window radius of the materials were investigated. The experimental results show that the area strain of active zone would have inflexion under any pre-stretching condition, and the area strain increased with applied voltage increasing, decreased with the ratio of the active zone to the window radius increasing. It could be found that the strain conditions have an important influence on the area strain of the active zone.

Abstract: Prestrain affects the performance of dielectric elastomer actuators so much that rare actuators is used before pre-stretching. In this article, the author made a series of circular actuators with acrylic VHB4910 and graphite mixture electrodes, and performed contrast experiments, under non-prestrain, uniaxial prestrain and equibiaxial prestrain, respectively, to figure out the changing of area strain against prestrain. Result of experiment indicates that the film actuator obtains the highest output strain while applying equibiaxial prestrain. An optimum prestrain ratio of actuators, in this research, occurs between 150%~200% under equibiaxial prestrain condition. This result has practical value in the future design and use of dielectric elastomer actuators.