Thermo-mechanical and control behaviour of copper-based shape memory alloy bimorph actuator towards the development of micro positioning system

被引：0

作者：

Muralidharan M. ^{[1
]}

Jayachandran S. ^{[1
]}

Yogeshwaran M. ^{[2
]}

Shivaani A.S. ^{[2
]}

Palani I.A. ^{[1
]}

机构：

[1] Indian Institute of Technology Indore, Simrol

[2] Mechatronics Engineering, Bannari Amman Institute of Technology, Sathyamangalam

来源：

Defence Science Journal | 2020年 / 70卷 / 06期

关键词：

Bimorph actuator; Mechatronics; MEMS; Micro positioning; PID control; Shape memory alloy;

D O I：

10.14429/DSJ.70.15516

中图分类号：

学科分类号：

摘要：

A shape memory alloy (SMA) bimorph actuator is a composite structure composed of flexible polyimide substrate and SMA thin film deposited using thermal evaporation technique. In this work, the substrate thickness in the range of 25 - 75 mm was selected for the development of CuAlNiMn SMA bimorph actuator. An investigation on the control behavior of copper based SMA bimorph towards the development of micro positioning system has been performed. The actuation behavior of the SMA bimorph was studied using electrical actuation. Subsequently, a proportional integral derivative (PID) controller was designed to control the bimorph actuator with proper tuning of gain parameters. The displacement of the bimorph actuator was controlled through dedicated experimental setup consisted of laser displacement sensor, data acquisition system and LabVIEW software. The CuAlNiMn SMA bimorph actuator resulted in a satisfying control performance which can be extended to MEMS applications. A preliminary prototype of the SMA bimorph actuator based micro positioning system has been developed. © 2020, DESIDOC.

引用

页码：664 / 671

页数：7

共 40 条

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Muralidharan, M.
Jayachandran, S.
Yogeshwaran, M.
Shivaani, A. S.
Palani, I. A.
DEFENCE SCIENCE JOURNAL, 2020, 70 (06) : 664 - 671
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