PARAMETER OPTIMIZATION IN SPRING-ROLL DIELECTRIC ELASTOMER ACTUATOR DESIGN | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 7, Volume 39, No 2, March and April 2011, Page 359-376 PDF (312.53 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2011.127535 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Medhat Awadalla1; Besada A. Anees2 | ||||
| 1Electronics and Communication Dept.,Faculty of Engineering, Helwan University, Cairo,Egypt | ||||
| 2Industrial Training Council.,Cairo, Egypt | ||||
| Abstract | ||||
| The performance of a given type of actuators can be markedly enhanced by judicious choosing parameters of design. However, choosing parameters of design to optimize the actuator’s performance has been challenging due to nonlinear equations of state, multiple modes of failure, parameters of design, and measures of performance. The actuator has three dimensionless parameters of design, the pre-stretches in length and width of the plane of the elastomer membrane and the dimensionless ratio between the stiffness of the spring and that of the elastomer. These parameters of design are prescribed once the actuator is constructed. This paper aims to optimize these parameters to get the maximum actuation of Spring-Roll Dielectric Elastomer actuator. Analysis and software programs are developed to graphically represent the equations of state for any design parameter values. Also, to design the dimensions of the actuator, the applied voltage, and the stiffness of the spring when the axial length at relax and axial load are prescribed. Different loads and actuator axial lengths and their counterpart designs are also addressed. Actuation range and maximum actuation for each design are determined. Compared with the most recent work [1-6], the achieved results show that the presented work outperforms. In addition to, getting out of the region of failure modes is described. This paper also presents robust and reliable design techniques for a Spring-Roll Dielectric Elastomer Actuator, whose actuation exceeds 300 % and could be used as a promising device in various medical applications. | ||||
| Keywords | ||||
| Spring roll dielectric elastomer actuator; modes of failure; region of allowable states; actuation range; optimal design parameters | ||||
|
Statistics Article View: 76 PDF Download: 247 |
||||
