Zhang Zhengyan, Guo Yicong, Bu Fan, Wei Shijie, Cheng E
School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, P. R. China.
School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, P. R. China.
ACS Appl Mater Interfaces. 2025 Feb 5;17(5):8036-8046. doi: 10.1021/acsami.4c21369. Epub 2025 Jan 26.
Wirelessly driven flexible actuators are crucial to the development of flexible robotic crawling. However, great challenges still remain for the crawling of flexible actuators in complex environments. Herein, we reported a wireless flexible actuator synergistically driven by wireless power transmission (WPT) technology and near-infrared (NIR) light, which consists of a poly(dimethylsiloxane)-graphene oxide (PDMS-GO) composite layer, eutectic gallium-indium alloy (EGaIn), a PDMS layer, and a polyimide (PI) layer. By optimizing the parameters of EGaIn and the concentration of the PDMS-GO composite film, the actuator has excellent bending ability and blocking force under different conditions driven by photoelectronic synergy. In addition, we fabricated a flexible crawling robot with high environmental adaptability by adding crawling structures at both ends of the actuator, which causes a discrepancy in friction between the front and rear feet. The flexible crawling robot has high stability, large deformation, and excellent crawling ability for wirelessly crawling on a plane, slope, and plane with different roughnesses. This work provides an idea for the application of wireless robots in complex environments.
无线驱动的柔性致动器对于柔性机器人爬行的发展至关重要。然而，柔性致动器在复杂环境中的爬行仍面临巨大挑战。在此，我们报道了一种由无线电力传输（WPT）技术和近红外（NIR）光协同驱动的无线柔性致动器，它由聚二甲基硅氧烷-氧化石墨烯（PDMS-GO）复合层、共晶镓铟合金（EGaIn）、PDMS层和聚酰亚胺（PI）层组成。通过优化EGaIn的参数和PDMS-GO复合膜的浓度，该致动器在光电协同驱动的不同条件下具有出色的弯曲能力和阻挡力。此外，我们通过在致动器两端添加爬行结构制造了一种具有高环境适应性的柔性爬行机器人，这导致前后脚之间的摩擦力存在差异。该柔性爬行机器人具有高稳定性、大变形能力，并且在平面、斜坡以及不同粗糙度的平面上进行无线爬行时具有出色的爬行能力。这项工作为无线机器人在复杂环境中的应用提供了思路。
