Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA
This paper describes two methodologies for increasing the actuation speed of the shape memory alloy (SMA) actuator in ambient environment. The first method involves the implementation of a simple, light-weight heat sink, which consists only of a combination of an outer metal tube with the silicone g...
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2008-11-01
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doaj-41a4aa3bcc924b08819c9afaa34626872020-11-25T03:20:54ZengSAGE PublishingInternational Journal of Advanced Robotic Systems1729-88061729-88142008-11-0134Natural Heat-Sinking Control Method for High-Speed Actuation of the SMATamio AraiHiroshi YokoiChee Siong LohThis paper describes two methodologies for increasing the actuation speed of the shape memory alloy (SMA) actuator in ambient environment. The first method involves the implementation of a simple, light-weight heat sink, which consists only of a combination of an outer metal tube with the silicone grease, but able to cool the heated alloy effectively. The second method describes a high current pulse actuation that actuates the alloy fastly using pulses in the milliseconds order. We hypothesize that a fast actuation of the SMA results in small increase in temperature, due to energy transformation from heat energy to the kinetic energy in the SMA. This new heating method revolutionizes the actuation of the alloy for a significantly faster response. http://www.intechopen.com/articles/show/title/natural_heat-sinking_control_method_for_high-speed_actuation_of_the_smaShape memory alloy (SMA)simple light- weight heat sinkhigh current pulse actuation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Tamio Arai Hiroshi Yokoi Chee Siong Loh |
spellingShingle |
Tamio Arai Hiroshi Yokoi Chee Siong Loh Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA International Journal of Advanced Robotic Systems Shape memory alloy (SMA) simple light- weight heat sink high current pulse actuation |
author_facet |
Tamio Arai Hiroshi Yokoi Chee Siong Loh |
author_sort |
Tamio Arai |
title |
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA |
title_short |
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA |
title_full |
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA |
title_fullStr |
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA |
title_full_unstemmed |
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA |
title_sort |
natural heat-sinking control method for high-speed actuation of the sma |
publisher |
SAGE Publishing |
series |
International Journal of Advanced Robotic Systems |
issn |
1729-8806 1729-8814 |
publishDate |
2008-11-01 |
description |
This paper describes two methodologies for increasing the actuation speed of the shape memory alloy (SMA) actuator in ambient environment. The first method involves the implementation of a simple, light-weight heat sink, which consists only of a combination of an outer metal tube with the silicone grease, but able to cool the heated alloy effectively. The second method describes a high current pulse actuation that actuates the alloy fastly using pulses in the milliseconds order. We hypothesize that a fast actuation of the SMA results in small increase in temperature, due to energy transformation from heat energy to the kinetic energy in the SMA. This new heating method revolutionizes the actuation of the alloy for a significantly faster response. |
topic |
Shape memory alloy (SMA) simple light- weight heat sink high current pulse actuation |
url |
http://www.intechopen.com/articles/show/title/natural_heat-sinking_control_method_for_high-speed_actuation_of_the_sma |
work_keys_str_mv |
AT tamioarai naturalheatsinkingcontrolmethodforhighspeedactuationofthesma AT hiroshiyokoi naturalheatsinkingcontrolmethodforhighspeedactuationofthesma AT cheesiongloh naturalheatsinkingcontrolmethodforhighspeedactuationofthesma |
_version_ |
1724615804956180480 |