Experimental characterization of thermally-activated artificial muscles based on coiled nylon fishing lines
Experimental characterization of thermally-activated artificial muscles based on coiled nylon fishing lines
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DOI：
10.1063/1.4923315
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发表时间：
2015-06-01
期刊：
影响因子：
1.6
通讯作者：
Fontana, Marco
中科院分区：
文献类型：
--
作者：
Cherubini, Antonello;Moretti, Giacomo;Fontana, Marco
基于扭曲的聚合物纤维的一类创新的热激活致动器的发现，为开发有效的装置开辟了新的视野，这些装置可以使用廉价的材料（例如钓鱼线或缝纫线）容易地制造。这些新器件在一起加热时显示出很大的变形，在能量和功率密度方面具有良好的性能。为了提供对未来工程应用有用的信息和数据，我们提出了对特定类型的扭曲聚合物纤维（即尼龙制成的线圈致动器）进行热机械表征的结果，该纤维被认为是特别有前途的。一个自定义的实验测试台和程序已经开发，并采用运行等温和等距拉伸试验的一组标本，制作了一个简单的和可重复的过程。实验的结果突出了一些重要的问题，这些致动器的响应，如滞后，可重复性，可预测性和存储的弹性能量。(C)2015年作者。
The discovery of an innovative class of thermally activated actuators based on twisted polymeric fibres has opened new horizons toward the development of effective devices that can be easily manufactured using inexpensive materials such as fishing lines or sewing threads. These new devices show large deformations when heated together with promising performance in terms of energy and power densities. With the aim of providing information and data useful for the future engineering applications, we present the results of a thermo-mechanical characterization conducted on a specific type of twisted polymeric fibre (i.e. nylon-made coiled actuators) that is considered particularly promising. A custom experimental test-bench and procedure have been developed and employed to run isothermal and isometric tensile tests on a set of specimens that are fabricated with a simple and repeatable process. The results of the experiments highlight some important issues related to the response of these actuators such as hysteresis, repeatability, predictability and stored elastic energy. (C) 2015 Author(s).