Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials
Abstract Mechanism‐based metamaterials, comprising rigid elements interconnected by flexible hinges, possess the potential to develop intelligent micromachines with programmable motility and morphology. However, the absence of efficient microactuators has constrained the ability to achieve multimoda...
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| Format: | Article |
| Language: | English |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202407231 |
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| author | Zi‐Yi Cao Huayang Sai Weiwei Wang Kai‐Cheng Yang Linlin Wang Pengyu Lv Huiling Duan Tian‐Yun Huang |
| author_facet | Zi‐Yi Cao Huayang Sai Weiwei Wang Kai‐Cheng Yang Linlin Wang Pengyu Lv Huiling Duan Tian‐Yun Huang |
| author_sort | Zi‐Yi Cao |
| collection | DOAJ |
| description | Abstract Mechanism‐based metamaterials, comprising rigid elements interconnected by flexible hinges, possess the potential to develop intelligent micromachines with programmable motility and morphology. However, the absence of efficient microactuators has constrained the ability to achieve multimodal locomotion and active shape‐morphing behaviors at the micro and nanoscale. In this study, inspiration from the flight mechanisms of tiny insects is drawn to develop a biomimetic microhinged actuator by integrating compliant mechanisms with soft hydrogel muscle. A Pseudo‐Rigid‐Body mechanical model is introduced to analyze structural deformation, demonstrating that this hydrogel‐based microactuator can undergo significant folding while maintaining high structural stiffness. Furthermore, multiple microhinged actuators are combined to facilitate folding in multiple degrees of freedom and arbitrary directions. Fabricated by a multi‐step four‐dimensional (4D) direct laser writing technique, the microhinged actuators are integrated into 2D and 3D metamaterials enabling programable shape morphing. Additionally, micro‐kirigami with photonic structures is demonstrated to show the pattern transforming actuated by the microhinges. This bioinspired design approach opens new avenues for the development of active mechanism‐based metamaterials capable of intricate shape‐morphing behaviors. |
| format | Article |
| id | doaj-art-fc658e3eae4d4bdc88f317d79090951e |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-fc658e3eae4d4bdc88f317d79090951e2025-01-13T15:29:43ZengWileyAdvanced Science2198-38442025-01-01122n/an/a10.1002/advs.202407231Bioinspired Microhinged Actuators for Active Mechanism‐Based MetamaterialsZi‐Yi Cao0Huayang Sai1Weiwei Wang2Kai‐Cheng Yang3Linlin Wang4Pengyu Lv5Huiling Duan6Tian‐Yun Huang7Department of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaDepartment of Advanced Manufacturing and Robotics State Key Laboratory for Turbulence and Complex Systems BIC‐ESAT College of Engineering Peking University Beijing 100871 ChinaAbstract Mechanism‐based metamaterials, comprising rigid elements interconnected by flexible hinges, possess the potential to develop intelligent micromachines with programmable motility and morphology. However, the absence of efficient microactuators has constrained the ability to achieve multimodal locomotion and active shape‐morphing behaviors at the micro and nanoscale. In this study, inspiration from the flight mechanisms of tiny insects is drawn to develop a biomimetic microhinged actuator by integrating compliant mechanisms with soft hydrogel muscle. A Pseudo‐Rigid‐Body mechanical model is introduced to analyze structural deformation, demonstrating that this hydrogel‐based microactuator can undergo significant folding while maintaining high structural stiffness. Furthermore, multiple microhinged actuators are combined to facilitate folding in multiple degrees of freedom and arbitrary directions. Fabricated by a multi‐step four‐dimensional (4D) direct laser writing technique, the microhinged actuators are integrated into 2D and 3D metamaterials enabling programable shape morphing. Additionally, micro‐kirigami with photonic structures is demonstrated to show the pattern transforming actuated by the microhinges. This bioinspired design approach opens new avenues for the development of active mechanism‐based metamaterials capable of intricate shape‐morphing behaviors.https://doi.org/10.1002/advs.202407231bioinspired microhingecompliant mechanismmechanism‐based metamaterialsshape‐morphingtwo‐photon direct laser writing |
| spellingShingle | Zi‐Yi Cao Huayang Sai Weiwei Wang Kai‐Cheng Yang Linlin Wang Pengyu Lv Huiling Duan Tian‐Yun Huang Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials Advanced Science bioinspired microhinge compliant mechanism mechanism‐based metamaterials shape‐morphing two‐photon direct laser writing |
| title | Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials |
| title_full | Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials |
| title_fullStr | Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials |
| title_full_unstemmed | Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials |
| title_short | Bioinspired Microhinged Actuators for Active Mechanism‐Based Metamaterials |
| title_sort | bioinspired microhinged actuators for active mechanism based metamaterials |
| topic | bioinspired microhinge compliant mechanism mechanism‐based metamaterials shape‐morphing two‐photon direct laser writing |
| url | https://doi.org/10.1002/advs.202407231 |
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