Ye Jiao, Yao Yu-Chen, Gao Jian-Ye, Chen Sen, Zhang Pan, Sheng Lei, Liu Jing
Beijing Key Lab of CryoBiomedical Engineering and Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.
School of Future Technology, University of Chinese Academy of Sciences, Beijing, China.
Soft Robot. 2022 Dec;9(6):1098-1107. doi: 10.1089/soro.2021.0055. Epub 2022 Apr 29.
Jellyfish have attracted worldwide attention owing to their fantastic moving styles, which also inspired development in soft robotics to meet the demands of underwater surveillance. In this study, a soft robotic jellyfish integrated liquid metal coil, and magnetic field is proposed for the first time to mimic the soft rowing propulsion of oblate jellyfish. The soft robotic jellyfish is actuated by the entirely soft electromagnetic actuators that enabled the gentle motion. Through conceptual experiments and computational fluid dynamics simulations, we systematically interpreted the mechanism of this robotic jellyfish and various factors to dominate its movement behaviors, which involve vortex formation and ascending modalities. Besides, underwater monitoring and bio-friendliness of robotic jellyfish were also demonstrated to illustrate its potential application scenarios and gentle motion characteristics. This study will help to broaden the vistas for liquid metal enabled bionic robotics in a wide range of underwater applications.
水母因其奇妙的移动方式而吸引了全球关注，这也激发了软机器人技术的发展，以满足水下监测的需求。在本研究中，首次提出了一种集成液态金属线圈和磁场的软机器人水母，以模仿扁圆形水母的软划水推进方式。这种软机器人水母由完全柔软的电磁致动器驱动，实现了轻柔的运动。通过概念实验和计算流体动力学模拟，我们系统地解释了这种机器人水母的机制以及主导其运动行为的各种因素，其中包括涡旋形成和上升方式。此外，还展示了机器人水母的水下监测和生物友好性，以说明其潜在的应用场景和轻柔的运动特性。这项研究将有助于拓宽液态金属驱动的仿生机器人在广泛水下应用中的视野。
