Application of shape memory alloy wire actuator for precision position control of a composite beam
Application of shape memory alloy wire actuator for precision position control of a composite beam
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DOI：
10.1361/105994900770346006
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发表时间：
2000-06-01
影响因子：
2.3
通讯作者：
Srivatsan, TS
中科院分区：
文献类型：
--
作者：
Song, GB;Kelly, B;Srivatsan, TS
本文介绍了用形状记忆合金(SMA)丝作为复合梁位置控制驱动器的设计和实验结果。复合梁是蜂窝结构，在其一个面片中嵌入形状记忆合金丝以用于主动驱动。镍钛形状记忆合金丝具有较高的回复应力(>；700 Mpa)和较高的应变耐受性(最高可达8%)，因此被选为驱动元件。设计并实现了一种简单的比例导数加前馈电流控制器来控制复合梁的尖端位置。实验证明，形状记忆合金丝作为复合梁主动位置控制的执行器是有效的。
In this paper are presented the design and experimental results of using a shape memory alloy (SMA) wire as an actuator for position control of a composite beam. The composite beam is honeycomb structured, having wires of SMA embedded in one of its face sheets for the purposes of active actuation. Nickel-titanium SMA wires were chosen as actuating elements due to their high recovery stress (>700 MPa) and tolerance to high strain (up to 8%). A simple proportional and derivative controller plus a feed-forward current is designed and implemented for controlling the tip position of the composite beam. Experiments have demonstrated the effectiveness of the SMA wire as an actuator for active position control of a composite beam.