Design and printing of proprioceptive three-dimensional architected robotic metamaterials
Design and printing of proprioceptive three-dimensional architected robotic metamaterials
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DOI：
10.1126/science.abn0090
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发表时间：
2022-06-17
期刊：
影响因子：
56.9
通讯作者：
Zheng, Xiaoyu (Rayne)
中科院分区：
文献类型：
--
作者：
Cui, Huachen;Yao, Desheng;Zheng, Xiaoyu (Rayne)
增材制造技术的进步使得能够创建具有设计的三维（3D）架构的刺激响应材料。与生物系统不同，生物系统中的功能，如传感，驱动和控制是紧密结合的，很少有结构材料具有可比的系统复杂性。我们报告了一种设计和制造路线，以创建一类能够多自由度运动的机器人超材料，响应于电场（反之亦然）在规定方向上放大应变，从而实现具有自感知和反馈控制的编程运动。这些机器人超材料由压电、导电和结构元素交织成设计的3D晶格网络组成。由此产生的建筑材料的功能作为本体感受微型机器人，积极的感觉和移动。
Advances in additive manufacturing techniques have enabled the creation of stimuli-responsive materials with designed three-dimensional (3D) architectures. Unlike biological systems in which functions such as sensing, actuation, and control are closely integrated, few architected materials have comparable system complexity. We report a design and manufacturing route to create a class of robotic metamaterials capable of motion with multiple degrees of freedom, amplification of strain in a prescribed direction in response to an electric field (and vice versa), and thus, programmed motions with self-sensing and feedback control. These robotic metamaterials consist of networks of piezoelectric, conductive, and structural elements interwoven into a designed 3D lattice. The resulting architected materials function as proprioceptive microrobots that actively sense and move.