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Soft electromagnetic actuators.
Science Advances ( IF 13.6 ) Pub Date : 2020-06-26 , DOI: 10.1126/sciadv.abc0251
Guoyong Mao 1, 2 , Michael Drack 1, 2 , Mahya Karami-Mosammam 1, 2 , Daniela Wirthl 1, 2 , Thomas Stockinger 1, 2 , Reinhard Schwödiauer 1, 2 , Martin Kaltenbrunner 1, 2
Affiliation  

Rigid electromagnetic actuators serve our society in a myriad of ways for more than 200 years. However, their bulky nature restricts close collaboration with humans. Here, we introduce soft electromagnetic actuators (SEMAs) by replacing solid metal coils with liquid-metal channels embedded in elastomeric shells. We demonstrate human-friendly, simple, stretchable, fast, durable, and programmable centimeter-scale SEMAs that drive a soft shark, interact with everyday objects, or rapidly mix a dye with water. A multicoil flower SEMA with individually controlled petals blooms or closes within tens of milliseconds, and a cubic SEMA performs programmed, arbitrary motion sequences. We develop a numerical model supporting design and opening potential routes toward miniaturization, reduction of power consumption, and increase in mechanical efficiency. SEMAs are electrically controlled shape-morphing systems that are potentially empowering future applications from soft grippers to minimally invasive medicine.



中文翻译:

软电磁执行器。

刚性电磁执行器以多种方式为我们的社会服务200多年。但是,它们庞大的性质限制了与人类的紧密合作。在这里,我们介绍了软电磁致动器(SEMA),它用嵌入弹性体外壳中的液态金属通道代替了固态金属线圈。我们展示了人类友好,简单,可拉伸,快速,耐用和可编程的厘米级SEMA,它们可以驱动软鲨,与日常物体互动或将染料与水快速混合。具有独立控制花瓣的多层螺旋花SEMA在数十毫秒内开花或闭合,而立方SEMA执行已编程的任意运动序列。我们开发了一种数值模型,该模型支持设计并为朝着小型化,降低功耗和提高机械效率的方向开辟了潜在的途径。

更新日期:2020-06-26
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