Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper
Abstract The replication of jumping motions observed in small organisms poses a significant challenge due to size‐related effects. Shape memory alloys (SMAs) exhibit a superior work‐to‐weight ratio, making them suitable for jumping actuators. However, the SMAs advantages are hindered by the limitati...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202307088 |
| _version_ | 1797351459107373056 |
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| author | Yang Yang Yongquan Wang |
| author_facet | Yang Yang Yongquan Wang |
| author_sort | Yang Yang |
| collection | DOAJ |
| description | Abstract The replication of jumping motions observed in small organisms poses a significant challenge due to size‐related effects. Shape memory alloys (SMAs) exhibit a superior work‐to‐weight ratio, making them suitable for jumping actuators. However, the SMAs advantages are hindered by the limitations imposed by their single actuator configuration and slow response speed. This study proposes a novel design approach for an insect‐scale shape memory alloy jumper (net‐shell) using 4D printing technology and the bistable power amplification mechanism. The energy variations of the SMA net‐shell under different states and loads are qualitatively elucidated through a spring‐mass model. To optimize the performance of the SMA net‐shell, a non‐contact photo‐driven technique is employed to induce its shape transition. Experimental investigations explore the deformation response, energy release of the net‐shell, and the relationship between the light power density. The results demonstrate that the SMA net‐shell exhibits remarkable jumping capabilities, achieving a jump height of 60 body lengths and takeoff speeds of up to 300 body lengths per second. Furthermore, two illustrative cases highlight the potential of net‐shells for applications in unstructured terrains. This research contributes to miniaturized jumping mechanisms by providing a new design approach integrating smart materials and advanced structures. |
| first_indexed | 2024-03-08T13:00:45Z |
| format | Article |
| id | doaj.art-d789eeb3f5474c90b9b9ddc31c903909 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-08T13:00:45Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-d789eeb3f5474c90b9b9ddc31c9039092024-01-19T09:27:54ZengWileyAdvanced Science2198-38442024-01-01113n/an/a10.1002/advs.202307088Snapping for 4D‐Printed Insect‐Scale Metal‐JumperYang Yang0Yongquan Wang1School of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 P. R. ChinaSchool of Mechanical Engineering Xi'an Jiaotong University Xi'an 710049 P. R. ChinaAbstract The replication of jumping motions observed in small organisms poses a significant challenge due to size‐related effects. Shape memory alloys (SMAs) exhibit a superior work‐to‐weight ratio, making them suitable for jumping actuators. However, the SMAs advantages are hindered by the limitations imposed by their single actuator configuration and slow response speed. This study proposes a novel design approach for an insect‐scale shape memory alloy jumper (net‐shell) using 4D printing technology and the bistable power amplification mechanism. The energy variations of the SMA net‐shell under different states and loads are qualitatively elucidated through a spring‐mass model. To optimize the performance of the SMA net‐shell, a non‐contact photo‐driven technique is employed to induce its shape transition. Experimental investigations explore the deformation response, energy release of the net‐shell, and the relationship between the light power density. The results demonstrate that the SMA net‐shell exhibits remarkable jumping capabilities, achieving a jump height of 60 body lengths and takeoff speeds of up to 300 body lengths per second. Furthermore, two illustrative cases highlight the potential of net‐shells for applications in unstructured terrains. This research contributes to miniaturized jumping mechanisms by providing a new design approach integrating smart materials and advanced structures.https://doi.org/10.1002/advs.2023070884D printingbistable structurejumpingphoto‐driven techniqueshape memory alloyssnapping mechanism |
| spellingShingle | Yang Yang Yongquan Wang Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper Advanced Science 4D printing bistable structure jumping photo‐driven technique shape memory alloys snapping mechanism |
| title | Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper |
| title_full | Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper |
| title_fullStr | Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper |
| title_full_unstemmed | Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper |
| title_short | Snapping for 4D‐Printed Insect‐Scale Metal‐Jumper |
| title_sort | snapping for 4d printed insect scale metal jumper |
| topic | 4D printing bistable structure jumping photo‐driven technique shape memory alloys snapping mechanism |
| url | https://doi.org/10.1002/advs.202307088 |
| work_keys_str_mv | AT yangyang snappingfor4dprintedinsectscalemetaljumper AT yongquanwang snappingfor4dprintedinsectscalemetaljumper |