Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA

Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA

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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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Main Authors: Chee Siong Loh, Hiroshi Yokoi, Tamio Arai
Format: Article
Language:English
Published: SAGE Publishing 2006-12-01
Series:International Journal of Advanced Robotic Systems
Online Access:https://doi.org/10.5772/5725
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spelling doaj-d8bb5b4c2b7d497285a3f591fd1985092020-11-25T03:19:58ZengSAGE PublishingInternational Journal of Advanced Robotic Systems1729-88142006-12-01310.5772/572510.5772_5725Natural Heat-Sinking Control Method for High-Speed Actuation of the SMAChee Siong LohHiroshi YokoiTamio AraiThis 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.https://doi.org/10.5772/5725
collection DOAJ
language English
format Article
sources DOAJ
author Chee Siong Loh
Hiroshi Yokoi
Tamio Arai
spellingShingle Chee Siong Loh
Hiroshi Yokoi
Tamio Arai
Natural Heat-Sinking Control Method for High-Speed Actuation of the SMA
International Journal of Advanced Robotic Systems
author_facet Chee Siong Loh
Hiroshi Yokoi
Tamio Arai
author_sort Chee Siong Loh
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 1729-8814
publishDate 2006-12-01
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.
url https://doi.org/10.5772/5725
work_keys_str_mv AT cheesiongloh naturalheatsinkingcontrolmethodforhighspeedactuationofthesma
AT hiroshiyokoi naturalheatsinkingcontrolmethodforhighspeedactuationofthesma
AT tamioarai naturalheatsinkingcontrolmethodforhighspeedactuationofthesma
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