A Review of Shape Memory Alloy Actuators in Robotics

Kheirikhah, Mohammad Mahdi; Rabiee, S.; Edalat, Mohammad Ehsan

doi:10.1007/978-3-642-20217-9_18

Cited by 80 publications

(58 citation statements)

References 18 publications

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“…THE shape memory alloys (SMAs) have emerged as smart advanced materials in the recent past due to wide applications in bioengineering [1][2][3][4][5][6][7][8] , aerospace 1,[9][10][11] , robotics [12][13][14] , consumer products and industrial applications [15][16][17] , structures and composites 18 , automotive industry [19][20][21] , actuators and micro-electromechanical systems (MEMS) 1,2,[22][23][24] , and in fashion 25 . The SMAs are capable of memorizing their original shape.…”

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confidence: 99%

Properties of Magnetic Shape Memory Alloys in Martensitic Phase

Maji¹

2017

Current Science

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The Heusler alloys that exhibit reversible martensitic transition show multifunctional properties including magnetic shape memory effect. The properties of two kinds of magnetic shape memory alloys are studied, where magnetic field-induced strain is driven by two different mechanisms. The properties differ in martensitic phase with composition and thus they are studied in martensitic phase. The crystal structure (Xray diffraction), magnetic behaviour (SQUID), transport analysis (four-probe method), magneto-transport trend (up to 8 T), magnetocaloric effect (around room-temperature), electronic structure (X-ray photoelectron spectroscopy and ab initio calculation), surface characterization (ultraviolet photoelectron spectroscopy and inverse photoelectron spectroscopy) are discussed for the matensitic phase. Analysis of the properties reveals alloys with possible applicability at room temperature with low magnetic field.

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confidence: 99%

Properties of Magnetic Shape Memory Alloys in Martensitic Phase

Maji¹

2017

Current Science

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“…Another widely used material in soft robotics research is shape-memory alloys (SMA). 26,27 A useful property of SMA is the ability to return to their initial shape when they are subjected to a suitable thermomechanical process. SMA are usually available as wires or sheets, and they can act like muscles through proper control of their temperature.…”

Section: Soft Robotics Technologies For Robotics Educationmentioning

confidence: 99%

Soft Robotics Education

et al. 2014

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Robotics education poses a significant challenge because it involves a number of different technological components and disciplines. So far, most of the existing teaching approaches focus on robots with fixed morphologies and rigid structures, which cover only subsets of the entire spectrum of related knowledge. From this perspective, this article explores an application of soft robotics research for robotics education and discusses the challenges and perspectives. We argue that the use of soft materials is crucial for understanding and teaching of a variety of topics related to intelligent adaptive systems. Along with the conceptual discussion, we introduce how the concept can be implemented into practical educational programs and report the latest concrete achievements in our lecture series.

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“…Co-Ni-Al, Co·Ni-Ga, Fe-Mn-Si, Cu-Al-Ni, Cu-Zn and Fe-Pt. In the group of non-metallic materials we should not neglect the shape-memory polymers [57][58][59][60][61][62], which can be activated by many different mechanisms, i.e. thermal, electrical, radiative (light), magnetic or chemical [62].…”

Section: Active and Passive Mechanical Contact-based Thermal Diodesmentioning

confidence: 99%

Special Heat Transfer Mechanisms: Active and Passive Thermal Diodes

Kitanovski

Tušek

Tomc

et al. 2014

Magnetocaloric Energy Conversion

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Many types of systems and devices require specific thermal management. For example, they can operate in such a manner that a rapid redirection of the heat flux or its intensity is required. This relates to different kinds of electronic devices, sensors, actuators, energy conversion devices, as well as some emerging technologies. The latter include ferroic energy conversion technologies based on magnetocaloric, electrocaloric, elastocaloric and other effects related to solid-state physics. With certain new design ideas it is perhaps even possible to reconsider existing systems and devices, which apply heat regenerators or require periodic heat-flux variations (i.e. Stirling devices).This chapter presents mechanisms and devices that can be applied as solid-state and (micro)fluidic thermal diodes. The thermal diode (heat "semiconductor", thermal switch, heat valve, thermal rectifier) is a physical phenomenon, mechanism or device in which it is possible to manipulate and control the direction of the heat flux and sometimes also the intensity of the heat flux. In this chapter the characteristics of such thermal diodes are described and presented with respect to different potential applications.A careful reader of this book will realize that the application of thermal diode mechanisms can be crucial for the future development of ferroic solid-state technologies. Conventional heat transfer mechanisms, such as heat convection, are too limited by the heat transfer surface and the properties of the working fluid. In order to boost the power density of the magnetocaloric device by one order of magnitude or more, a different research direction is required that may take us out of the scope of the familiar and conventional active magnetic regeneration, which is actually based on heat convection. One solution is the introduction of thermal diode mechanisms. These can also lead to the design and construction of a new and advanced generation of magnetocaloric energy conversion or other ferroic (e.g., electrocaloric) devices.

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A Review of Shape Memory Alloy Actuators in Robotics

Cited by 80 publications

References 18 publications

Properties of Magnetic Shape Memory Alloys in Martensitic Phase

Properties of Magnetic Shape Memory Alloys in Martensitic Phase

Soft Robotics Education

Special Heat Transfer Mechanisms: Active and Passive Thermal Diodes

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