The Electromechanical Behavior of Dielectric Elastomer Actuator Stiffened by Fiber

Abstract:

Article Preview

Dielectric elastomer is functional material that can convert electrical energy to mechanical energy. In this paper, a cylindrical dielectric elastomer actuator was designed and fabricated by using fiber stiffening to improve its electromechanical performance. the effects of pre-straining, rate of applied voltage and fiber stiffening on the electromechanical behavior were investigated by the experiments. It was found that the best applied load for pre-straining was 524g based on the electromechanical tests at the applied voltage rate of 10V/s. The maximum actuated strain decreased with an increase in rate of applied voltage. When the fibers were embedded in the dielectric elastomer actuator, the maximum actuated strain was 27.5%, doubled the value of 14% without fiber stiffening at the applied voltage rate of 20V/s.

Info:

Periodical:

Edited by:

Serge Zhuiykov

Pages:

12-15

Citation:

L. Z. Lyu and S. J. Zhu, "The Electromechanical Behavior of Dielectric Elastomer Actuator Stiffened by Fiber", Key Engineering Materials, Vol. 765, pp. 12-15, 2018

Online since:

March 2018

Export:

Price:

$38.00

* - Corresponding Author

[1] R.E. Pelrine, R.D. Kornbluh and G. Kofod: High-Strain Actuator Materials Based on Dielectric Elastomer, Advanced Materials, Vol. 12 (2000), p.23.

DOI: https://doi.org/10.1002/1521-4095(200008)12:16<1223::aid-adma1223>3.0.co;2-2

[2] S. Shian, R.M. Diebold and D.R. Clarke: High-speed, Compact, Adaptive Lenses Using In-line Transparent Dielectric Elastomer Actuator Membranes, Proceedings of SPIE, Vol. 8687 (2013), p. 86872D-1.

DOI: https://doi.org/10.1117/12.2009848

[3] K. Gabor, L. Patrick and W. Michael: An Arm Wresting Robot Driven by Dielectric Elastomer Actuators, Smart Materials and Structures, Vol. 16 (2007), p.306.

DOI: https://doi.org/10.1088/0964-1726/16/2/s16

[4] L. Mickael, J.C. Pierre, G. Danial and L. Lauren: Electrostrictive Polymers for Mechanical Energy Harvesting, Journal of Polymer Science, Vol. 50 (2012), p.523.

[5] Y. Bar-Cohen: Electroactive Polymer Actuator as Artificial Muscles-Reality and Challenges, Proceedings of the 42nd AIAA, (2001), p.1.

[6] P. Brochu and Q.B. Pei: Advances in Dielectric Elastomers for Actuators and Artificial Muscles, Macromolecular Rapid Communications, Vol. 31 (2010), p.10.

DOI: https://doi.org/10.1002/marc.200900425

[7] J.S. Huang, T.Q. Lu, J. Zhu, D.R. Clarke and Z.G. Suo: Large, Uni-directional Actuation in Dielectric Elastomers Achieved by Fiber Stiffening, Applied Physics Letters, Vol. 100 (2012), p.126.

DOI: https://doi.org/10.1063/1.4720181

[8] H.R. Choi, K. Jung, N.H. Chuc and M.Y. Jung: Effects of Prestrain on Behavior of Dielectric Elastomer Actuator, Proceedings of SPIE, Vol. 5759 (2005), p.283.