A Study on Design and Control of Oscillating Actuator Fabricated by Shape Memory Alloy

• Main Authors: Kuan-Chun Wang, 王冠鈞
• Other Authors: Prof. Long-Jyi Yeh
• Format: Others
• Language: zh-TW
• Published: 2004
• Online Access: http://ndltd.ncl.edu.tw/handle/84950712614579146876

碩士 === 大同大學 === 機械工程研究所 === 92 === The Shape Memory Alloys (SMA) have practicability either the TiNi alloy or series of Cu alloys (more cheap than TiNi alloy); But the memory alloy of coppers have some shortcoming such as deform unstable, low ductility, poor fatigue stength etc., if replace Ni with Cu to get the TiNiCu alloy can combine both advantage, so based on it for the main material to studied. In this study , find out the characteristic of Ti50Ni45Cu5 alloy(ψ0.6mm) with the experiment at first, then design a couple SMA actuating devices, cooperate with the dynamic image feedbake control system and VB program, to make couple SMA actuating devices becoming practical and can control. The result of study found that joining the dynamic image feedback control can overcome SMA low reappearing question, under the general environment (25±3℃), the oscillating angle range of the couple SMA oscillating type actuating devices is ±12.5°, the precision of angle control is ±0.5°, if oscillating angle in ±1.5°, the precision of angle control can be up to ±0.25°