213 Study on Artificial Muscle Actuator using Shape Memory Alloy : 2nd Report, Characteristics of Motor Unit

2005 ◽  
Vol 2005.41 (0) ◽  
pp. 71-72 ◽  
Author(s):  
Toshiya ISHIKAWA ◽  
Takeshi NAKADA
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Motor Unit ◽  
Artificial Muscle

Design and Control of a Shape Memory Alloy Wire Bundle Actuator

2000 ◽  
Author(s):  
Michael J. Mosley ◽  
Constantinos Mavroidis
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Artificial Muscle ◽  
Linear Displacement ◽  
Nickel Titanium ◽  
Input Shaping ◽  
Joint Rotation ◽  
Revolute Joint ◽  
And Control ◽  
Robotic Applications

Abstract In this paper, the design and control of a novel shape memory alloy (SMA) actuator that possesses impressive payload lifting capabilities are presented. The actuator consists of 48 nickel-titanium SMA wires mechanically bundled in parallel forming one powerful artificial muscle. This new linear actuator can apply up to 100 lbf (445 N), which is approximately 300 times its weight, over a maximum distance of 0.5 in. (1.27 cm). The actuator was tested in two different loading configurations — linear displacement and operation of a revolute joint. A PID based controller with the addition of an input shaping function was developed for each loading configuration with excellent results, maintaining steady state error within ± 0.004 in. (0.1 mm) for linear motion and ± 1° for revolute joint rotation. This powerful, compact, and lightweight actuator shows promise for use in space, medical, and other macro-robotic applications.

F225 Evaluation of Repeatable Motion on Artificial Muscle Using Thin Shape Memory Alloy Wire

2006 ◽  
Vol 2006 (0) ◽  
pp. 377-378
Author(s):  
Ryuta Ibuki ◽  
Shigenao Maruyama ◽  
Atsuki Komiya ◽  
Tomoyuki Yambe
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Artificial Muscle ◽  
Shape Memory Alloy Wire ◽  
Alloy Wire

Synthesis and Characterization of Hybrid Actuator Based on Polypyrrole and SMA

2014 ◽  
Author(s):  
Akshay Potnuru ◽  
Yonas Tadesse
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Large Strain ◽  
Conductive Polymer ◽  
Artificial Muscle ◽  
Muscle System ◽  
Synthesis Conditions ◽  
Coil Structure ◽  
Composite Actuator

This paper presents initial investigation on a hybrid artificial muscle actuator combining two actuation technologies, based on conductive polymers and shape memory alloys (SMAs). Polypyrrole is used as the conductive polymer muscle and nickel-titanium as shape memory alloy to make the composite muscle system. Depending on the geometry of the actuator, doped polypyrrole exhibits large strain, consuming less voltage and current; whereas shape memory alloy generates large stress (force), consuming high power (high current). Helically wound coil structure was chosen as the shape of the composite actuator in this study. The polypyrrole is synthesized on the surface of the Ni-Ti shape memory alloy wire, wound around a core gold coated polylactide fiber (PLA). Preliminary results on the performance and synthesis conditions of the composite actuator will be presented for various applications under different conditions.

scholarly journals Surface Nanopatterned Shape Memory Alloy (SMA)‐Based Photosensitive Artificial Muscle

2021 ◽  
pp. 2102024
Author(s):  
Min‐Soo Kim ◽  
Hye‐Sung Lee ◽  
Younggyun Cho ◽  
Jae Kyung Heo ◽  
Ying‐Jun Quan ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Artificial Muscle
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