Development of Miniature Stewart Platform Using TiNiCu Shape-Memory-Alloy Actuators
Joint Authors
Mohamed Ali, M. S.
AbuZaiter, Alaa
Ng, Ee Leen
Kazi, Suhail
Source
Advances in Materials Science and Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-07
Country of Publication
Egypt
No. of Pages
9
Abstract EN
A Stewart platform is a parallel manipulator robot that is able to perform three linear movements, lateral, longitudinal, and vertical, and three rotations, pitch, yaw, and roll.
This paper reports a 30 mm × 30 mm × 34 mm miniscale Stewart platform using TiNiCu shape-memory-alloy (SMA) actuators.
The proposed Stewart platform possesses various advantages, such as large actuation force and high robustness with a simple mechanical structure.
This Stewart platform uses four SMA actuators and four bias springs and performs a linear z-axis movement and tilting motions.
The SMA actuators are activated by passing a current through the SMA wires using a heating circuit that generates a pulse width modulation (PWM) signal.
This signal is varied to control the level of the displacement and tilting angle of the platform.
The tilting direction depends on the SMA actuator that is activated, while all four SMA actuators are activated to achieve the linear z-axis movement.
Each SMA actuator exerts a maximum force of 0.6 N at PWM duty cycle of 100%.
The fabricated miniature Stewart platform yields a full actuation of 12 mm in the z-axis at 55°C, with a maximum tilting angle of 30° in 4 s.
American Psychological Association (APA)
AbuZaiter, Alaa& Ng, Ee Leen& Kazi, Suhail& Mohamed Ali, M. S.. 2015. Development of Miniature Stewart Platform Using TiNiCu Shape-Memory-Alloy Actuators. Advances in Materials Science and Engineering،Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1053726
Modern Language Association (MLA)
AbuZaiter, Alaa…[et al.]. Development of Miniature Stewart Platform Using TiNiCu Shape-Memory-Alloy Actuators. Advances in Materials Science and Engineering No. 2015 (2015), pp.1-9.
https://search.emarefa.net/detail/BIM-1053726
American Medical Association (AMA)
AbuZaiter, Alaa& Ng, Ee Leen& Kazi, Suhail& Mohamed Ali, M. S.. Development of Miniature Stewart Platform Using TiNiCu Shape-Memory-Alloy Actuators. Advances in Materials Science and Engineering. 2015. Vol. 2015, no. 2015, pp.1-9.
https://search.emarefa.net/detail/BIM-1053726
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1053726