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Bio-inspired untethered fully soft robots in liquid actuated by induced energy gradients

National Science Review 2019年第5期6卷 970-981页

作者： Liang Xiong Lyu Fen Li Kang Wu Pan Deng Seung Hee Jeong Zhigang Wu Han Ding State Key Laboratory of Digital Manufacturing Equipment and Technology Huazhong University of Science and Technology

soft robotics with new designs, fabrication technologies and control strategies inspired by nature have been totally changing our view on *** fully exploit their potential in practical applications, untethered designs are preferred in ***, hindered by the limited thermal/mechanical performance of soft materials, it has been always challenging for researchers to implement untethered solutions, which generally involve rigid forms of high energy-density power sources or high energy-density processes.A number of insects in nature, such as rove beetles, can gain a burst of kinetic energy from the induced surface-energy gradient on water to return to their familiar habitats, which is generally known as Marangoni *** by such a behavior, we report the agile untethered mobility of a fully soft robot in liquid based on induced energy gradients and also develop corresponding fabrication and maneuvering *** robot can reach a speed of 5.5 body lengths per second, which is 7-fold more than the best reported, 0.69(body length per second), in the previous work on untethered soft robots in liquid by *** controlling the robots, we demonstrate a soft-robot swarm that can approach a target simultaneously to assure a hit with high *** employing any high energy-density power sources or processes, our robot exhibits many attractive merits, such as quietness, no mechanical wear, no thermal fatigue, invisibility and ease of robot fabrication, which may potentially impact many fields in the future.

关键词： fully soft robot untethered induced energy gradients Marangoni propulsion robot swarm

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