DEVELOPING SPRING-ROLL DIELECTRIC ELASTOMER ACTUATOR SYSTEM BASED ON NEW OPTIMAL DESIGN PARAMETERS | ||||
| JES. Journal of Engineering Sciences | ||||
| Article 12, Volume 39, No 5, September and October 2011, Page 1111-1128 PDF (265.24 K) | ||||
| Document Type: Research Paper | ||||
| DOI: 10.21608/jesaun.2011.129389 | ||||
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| Authors | ||||
| Medhat Awadalla1; Besada A. Anees2 | ||||
| 1Electronics and Communication Dept.,Faculty of Engineering, Helwan University, Cairo,Egypt | ||||
| 2Industrial Training Council, Cairo, Egypt. | ||||
| Abstract | ||||
| To develop a well designed practical spring-roll dielectric elastomer actuator system, we have to optimize the design parameters of spring-roll dielectric elastomer and develop a voltage supply that is able to pump < br />enough controlled charges and provide a wide range of controlled voltages to the actuator. In this paper, switched based multistage charge pump driven by a controlled low voltage switching power supply and a voltage driver is proposed as a wide range output voltage supply. Spring-roll dielectric elastomer optimal design parameters according to [1] areh1 p=5, h2 p=2, a=10. It is proven that h2 p has a subtle effect on both actuationl1 and dimensionless axial force p/mL2L3 however it has a great effect on the applied voltage required activating the actuator. Furthermore, when l2 p increases, the applied voltage decreases and the problems of high voltage are avoided. Therefore the optimal design parameters modified to l1 p=5, l2 p=5, a=10 instead of l1 p=5, l2 p=2, a=10. In this paper, based on the equations of state, new approaches for designing a spring-roll dielectric elastomer actuator have been developed. The key issue of the actuation range depends upon weather the actuator has a fixed load or variable multi-loads. The achieved results based on the proposed approaches show that the applied voltage has been reduced and the design of the actuator is getting simpler | ||||
| Keywords | ||||
| Spring roll dielectric elastomer actuator; modes of failure; optimal design parameters; switching power supply; charge pump | ||||
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