Dielectric elastomer actuators (DEAs) exhibit interesting muscle-like attributes including large voltage-induced deformation and high energy density, thus can function as artificial muscles for soft robots/devices. This paper focuses on soft planar DEAs, which have extensive applications such as artificial muscles for jaw movement, stretchers for cell mechanotransduction, and vibration shakers for tactile feedback, etc. Specifically, we develop a soft planar DEA, in which compression springs are employed to make the entire structure freestanding. This soft freestanding actuator can achieve both linear actuation and turning without increasing the size, weight, or structural complexity, which makes the actuator suitable for driving a soft crawling robot. Furthermore, its simple structure and homogeneous deformation allow for analytic modeling, which can be used to interpret the large voltage-induced deformation and interesting mechanics phenomenon (i.e., wrinkling and electromechanical instability). A preliminary demonstration showcases that this soft planar actuator can be employed as an artificial muscle to drive a soft crawling robot.
Soft Freestanding Planar Artificial Muscle Based on Dielectric Elastomer Actuator
Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received December 8, 2017; final manuscript received February 3, 2018; published online March 2, 2018. Assoc. Editor: Junlan Wang.
- Views Icon Views
- Share Icon Share
- Cite Icon Cite
- Search Site
Qin, L., Cao, J., Tang, Y., and Zhu, J. (March 2, 2018). "Soft Freestanding Planar Artificial Muscle Based on Dielectric Elastomer Actuator." ASME. J. Appl. Mech. May 2018; 85(5): 051001. https://doi.org/10.1115/1.4039289
Download citation file:
- Ris (Zotero)
- Reference Manager