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http://dx.doi.org/10.7234/kscm.2009.22.2.037

Behavior of a Shape Memory Alloy Actuator with Composite Strip and Spring  

Heo, Seok (건국대학교 인공근육연구센터)
Hwang, Do-Yeon (건국대학교 인공근육연구센터)
Choi, Jae-Won (수원대학교 공학교육혁신센터)
Park, Hoon-Cheol (건국대학교 신기술융합학과)
Goo, Nam-Seo (건국대학교 신기술융합학과)
Publication Information
Composites Research / v.22, no.2, 2009 , pp. 37-42 More about this Journal
Abstract
This paper presents an experimental approach to design a bending-type actuator by using a shape memory alloy wire (SMA), composite strip, and spring. The SMA wire is attached to two edges of the bent strip to apply pre-stress to the SMA wire. The spring is used to provide recovery force right after actuation of the SMA wire. To investigate thermo-mechanical characteristics of the SMA wire, a series of DSC tests have been conducted and tensile tests under various levels of pre-stress and input power have been performed. Based on the measured properties of the SMA wire, bending-type actuators are designed and tested for different combination of strip, number of springs, and input power. It has been found that a bending-type actuator with a proper combination shows fast actuation performance and low power consumption.
Keywords
shape memory alloy; phase transformation; bending actuator;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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