Torsional deformation characteristics of TiNi SMA tape and application to rotary actuator
Torsional deformation characteristics of TiNi SMA tape and application to rotary actuator
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DOI：
10.1016/j.jallcom.2011.10.108
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发表时间：
2013-11-15
影响因子：
6.2
通讯作者：
Mitsui, Kento
中科院分区：
文献类型：
--
作者：
Tobushi, Hisaaki;Pieczyska, Elzbieta;Mitsui, Kento
为了开发新型形状记忆致动器，研究了形状记忆合金（SMA）带的扭转变形以及由该带驱动的致动器模型。所得结果可总结如下。在受到扭转的SMA带材中，由于带材边缘的伸长，马氏体相变沿带材边缘出现，并向中心部分生长。脉动扭转和交变扭转的疲劳寿命均由各周期耗散功的统一关系表示。基于开关门模型和太阳能主动百叶窗模型，利用SMA带的扭转力，可以开发出机构小而简单的双向旋转驱动执行器。 (C) 2011 Elsevier B.V. 保留所有权利。
In order to develop novel shape memory actuators, the torsional deformation of a shape memory alloy (SMA) tape and the actuator models driven by the tape were investigated. The results obtained can be summarized as follows. In the SMA tape subjected to torsion, the martensitic transformation appears along the edge of the tape due to elongation of the edge of the tape and grows to the central part. The fatigue life in both the pulsating torsion and the alternating torsion is expressed by the unified relationship of the dissipated work in each cycle. Based on an opening and closing door model and a solar-powered active blind model, the two-way rotary driving actuator with a small and simple mechanism can be developed by using torsion of the SMA-tape. (C) 2011 Elsevier B.V. All rights reserved.