Applications for Shape Memory Alloys in Structural and Machine Dynamics

Cartmell, M.P.; Żak, Arkadiusz; Ganilova, Olga A.

doi:10.1007/978-94-007-2473-0_3

Cited by 4 publications

(4 citation statements)

References 51 publications

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“…These capabilities have drawn increasing attention in the field of engineering design, and nowadays SMAs are found in several applications, e.g., as fibres in composite material structures for adjusting natural frequencies or shape, or for reducing vibrations (Cartmell et al 2012); in civil engineering for seismic isolation and energy dissipation (of cultural heritage structures); and employed as sensors, actuators, and tendons in concrete members (Janke et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamics of a pseudoelastic shape memory alloy system—theory and experiment

Enemark

Savi

Santos

2014

Smart Mater. Struct.

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In this work, a helical spring made from a pseudoelastic shape memory alloy was embedded in a dynamic system also composed of a mass, a linear spring and an excitation system. The mechanical behaviour of shape memory alloys is highly complex, involving hysteresis, which leads to damping capabilities and varying stiffness. Besides, these properties depend on the temperature and pretension conditions. Because of these capabilities, shape memory alloys are interesting in relation to engineering design of dynamic systems. A theoretical model based on a modification of the 1D Brinson model was established. Basically, the hardening and the sub-loop behaviour were altered. The model parameters were extracted from force–displacement tests of the spring at different constant temperatures as well as from differential scanning calorimetry. Model predictions were compared with experimental results of free and forced vibrations of the system setup under different temperature conditions. The experiments give a thorough insight into dynamic systems involving pseudoelastic shape memory alloys. Comparison between experimental results and the proposed model shows that the model is able to explain and predict the overall nonlinear behaviour of the system.

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Section: Introductionmentioning

confidence: 99%

Nonlinear dynamics of a pseudoelastic shape memory alloy system—theory and experiment

Enemark

Savi

Santos

2014

Smart Mater. Struct.

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“…In order to check the stress effect on initial reverse transformation, we evaluate the start transformation temperature using equation (4c) and table 1 data as: 6 11…”

Section: Experimental Results and Analysismentioning

confidence: 99%

“…Cartmell, Żak, and Ganilova [6] summarized the applications of SMA wires in mechanical engineering structures and machines. Investigations regarding the effects of this smart material on the dynamics of beams, plates, and rotating machines were addressed.…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature on the passive control of a rotating machine using wires of shape memory alloy in the suspension

Braga¹,

Alves²,

Cavalini³

et al. 2020

Smart Mater. Struct.

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This paper deals with the passive control of mechanical vibrations of rotating machines using wires of shape memory alloys (SMA). Unlike other classes of smart materials, the proposed technique allows for simpler mechanical construction and offers new technological possibilities. Both numerical simulations and experimental tests have been performed in the present investigation. The numerical results reveal that the SMA wires can reduce the amplitude of lateral vibrations of a rotating shaft to acceptable levels, as shown by time responses and orbit curves. Experimentally, it has been demonstrated that SMA wires confirm the simulation results regarding the reduction of the lateral vibration of a rotor system. It has also been verified that the temperature of the SMA wire can be employed to tune the vibration control system. In this context, passive control architecture is recommended in order to take advantage from an intrinsic characteristic of SMA wires.

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“…Shape memory alloys is a tissue which can contract biologically, and it depends on Neuroelectricity to be able to relay information, transfer energy, discharge waste, supply energy and fix automatically [1]. Human beings committed themselves to the study of artificial muscle according to Bionics.…”

Section: Materials and Application Of Artificial Musclementioning

confidence: 99%

The Imitation of Muscles Stretching Device

Tang

Shao

Jiang

et al. 2017

AMM

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This paper presents a review of some of the applications for artificial muscle and several material of artificial muscle. We focus attention on the polymer material artificial muscle, which responds to electrical stimulation with a significant change in shape or size. Through our research on a variety of materials and the analysis of the mechanical properties of muscle movement, finally we designed the artificial muscle device the imitation of muscles stretching device. This article describes the structure and performance of the device.

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Applications for Shape Memory Alloys in Structural and Machine Dynamics

Cited by 4 publications

References 51 publications

Nonlinear dynamics of a pseudoelastic shape memory alloy system—theory and experiment

Nonlinear dynamics of a pseudoelastic shape memory alloy system—theory and experiment

Influence of temperature on the passive control of a rotating machine using wires of shape memory alloy in the suspension

The Imitation of Muscles Stretching Device

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