Design of shape memory alloy actuators for direct power by an automotive battery

Leary, Martin; Huang, Shunmei; Ataalla, T.; Baxter, Albert T; Subic, Aleksandar

doi:10.1016/j.matdes.2012.07.002

Cited by 46 publications

(21 citation statements)

References 16 publications

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“…The actuators used in automobile are made of SMA that require input energy for operation. The power required can be used from the battery of the vehicle [71]. SMA actuator can be used for startup of clutch as clutch requires high torque [72].…”

Section: Applications Of Smamentioning

confidence: 99%

Innovations and recent trends in Shape Memory Alloy: a review

Kawate¹,

Chethan

Keni

et al. 2018

IJET

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Smart materials are materials, which have a definite response to stimulus provided through a change in pressure, temperature and termed as shape memory alloys (SMA). In this review, the general concept of SMA’s has been discussed along with shape memory effects. Shape memory material properties depend on phase shifting phenomena, which consist of pseudoelasticity and thermoelasticity. The basic SMA such as Ni-Ti (Nickel-Titanium) alloys, Copper (Cu) based SMA, Iron (Fe) based SMA are commonly used in the industry, Ni-Ti alloys are expensive but it has good super elasticity and superior mechanical properties. Cu and Fe based are economical as compared to the Ni-Ti alloys. The various fabrication techniques and common composition of the alloys have been discussed with in detail.

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Section: Applications Of Smamentioning

confidence: 99%

Innovations and recent trends in Shape Memory Alloy: a review

Kawate¹,

Chethan

Keni

et al. 2018

IJET

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“…Moreover, they are characterized by superelastic behavior and a high power-to-weight ratio, which make them particularly suitable for the design of adaptive structures [ 10 ]. Several applications related to the adoption of SMA as actuators [ 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ], in both the automotive [ 22 , 23 , 24 , 25 , 26 , 27 ] and aerospace [ 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 ] fields, can be found, even if application on a large scale is still far from being achieved. However, SMA-based actuation systems are being extensively investigated in the framework of several research studies in order to reduce the complexity, with a consequent reduction of weight, of the traditional electric and hydraulic actuation systems [ 18 , 43 , 44 ].…”

Section: Introductionmentioning

confidence: 99%

Overview and Future Advanced Engineering Applications for Morphing Surfaces by Shape Memory Alloy Materials

Sellitto

Riccio

2019

Materials

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The development of structures able to autonomously change their characteristics in response to an external simulation is considered a promising research field. Indeed, these structures, called smart structures, can be adopted to improve the aerodynamic performance of air and land vehicles. In this work, an overview and future applications of Shape Memory Alloys (SMA)-based smart structures are presented. The use of SMA materials seems to be very promising in several engineering sectors. Advanced SMA-based devices, designed to improve the aerodynamic performance of vehicles by modifying the shape of the spoiler and the rear upper panel, are briefly introduced and discussed in this paper. Indeed, a simplified model simulating the SMA mechanical behavior has been considered to demonstrate the feasibility of the introduced smart structures for adaptive aerodynamic applications. Numerical simulations of the investigated structures are provided as a justification of the proposed designs.

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“…The occurrence of the R-phase is prohibited when the near-equiatomic NiTi is fully annealed or solution treated [7]. These unique thermomechanical properties have been used in a wide range of applications, including sensors [8,9], actuators [10,11], and medical devices [12,13]. Some of these applications are reactive and require no precision of movement.…”

Section: Introductionmentioning

confidence: 99%