Modeling and parametric studies of magnetic shape memory alloy–based energy harvester

Salarieh, Hassan; Najafabadi, Hossein R.; Farsangi, Mohammad Amin Askari

doi:10.1177/1045389x17711817

Cited by 8 publications

(8 citation statements)

References 25 publications

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“…A topological model of deformation twinning in 10M Ni-Mn-Ga crystals is proposed in [75] and a generalized approach for analyzing and modeling twin boundary dynamics is suggested in [76]. A practical application which utilizes MSM model is demonstrated in [77]. In this research MSM based energy harvester model is made, which comprises several minor models including MSM model, electrical and magnetic circuits.…”

Section: Modelingmentioning

confidence: 99%

Review of MSM Actuators: Applications, Challenges, and Potential

Kulagin

Laitinen

et al. 2022

IEEE Access

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Magnetic shape memory alloys (MSMAs) are a new and rapidly developing class of smart materials. These alloys demonstrate significant strain (from 6% to 12%) under an external magnetic field, which combined with their wide actuation frequency range, rapid accelerations, and high energy efficiency has resulted in MSMAs being used in a wide range of applications, for example, for energy harvesting, in measurement devices, flow control and pump applications, and as actuators and dampers. MSM actuators inherit the properties of MSMAs and MSM actuators can thus be extremely useful in many areas such as robotics, mobile machines, aerospace engineering and medicine, to name a few. Although the volume of research related to MSM actuators has increased in recent years, only a few types of these actuators exist, and the number of possible applications is currently rather limited. Nevertheless, MSM actuators clearly have great potential. Against this background, this paper reviews the current state of MSMA technology, examines different classes of MSM actuators and their current applications, and presents opportunities that have not yet been properly explored.

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Section: Modelingmentioning

confidence: 99%

Review of MSM Actuators: Applications, Challenges, and Potential

Kulagin

Laitinen

et al. 2022

IEEE Access

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“…In this stage, a practical example of how to supply this bias stress is provided. In Sayyaadi et al (2018), it is found that the less the length of the air gap is, the more the harvested power is. Thus, the spring-like section should not be in the air gap.…”

Section: Simulationmentioning

confidence: 99%

“…In their work, a harmonic longitudinal strain with a frequency between 130 to 300 Hz is applied on the MSMA specimen. Sayyaadi et al (2018) conducted modeling and simulation of a harvesting system similar to the model of Saren et al (2015). To model the alloy, the thermodynamic-based model of Waldauer et al (2012) is used, which is coupled by a harvester system model in the form of magnetic circuit.…”

Section: Introductionmentioning

confidence: 99%

“…A purely empirical model is used in Kohl et al (2013), Saren et al (2015), and Suorsa et al (2004), in which the behavior of the alloy is predicted using easy-axis and hard-axis curves of MSMA material. In Bruno et al (2012), Sayyaadi and Farsangi (2015), and Sayyaadi et al (2018), thermodynamic-based models, which are on the basis of Kiefer model presented in several papers (Kiefer and Lagoudas, 2005, 2008a, 2008b) have been used. The results show that the thermodynamic-based models have a better accordance with experimental results compared to empirical models.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and modification of a common energy harvesting system using magnetic shape memory alloys

Salarieh

Mehrabi

Hoviattalab

2020

Journal of Intelligent Material Systems and Structures

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In this paper, a common energy harvester is investigated which uses a specimen of magnetic shape memory alloy (MSMA). The aim of this study is to improve system performance and to evaluate the magneto-mechanical loading on the MSMA material. Since demagnetization effect is not included in the employed original MSMA model, a method to incorporate this effect is proposed which has a good performance for the specific magneto-mechanical loading of this problem. In order to decrease the need for bias magnetic field and increase system efficiency, a new return mechanism for the MSMA specimen is proposed. The results indicate that the maximum harvested power from the improved system is obtained at 0.55 T bias field, with 30% increase in power. Then, input mechanical loading in the system is studied. Firstly, applied strain rate caused by mechanical loading is studied, and a nonlinear relation between the induced RMS voltage and strain rate is observed. Next, 2D applied mechanical loading is investigated, and it is shown that by increasing the phase difference between mechanical loads in two directions, the induced voltage decreases. Moreover, applying dynamic effect to the model shows that for thin MSMA specimens, this effect is minor, but by increasing the thickness and loading frequency, the effect becomes tangible.

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“…Experimental results showed the generation of 15 µW power under a base acceleration of 0.3 g RMS at a frequency of 19.1 Hz. Sayyaadi et al obtained the generated power by an MSMAbased energy harvester under the direct application of the sinusoidal force [14]. The MSMA was placed in the air gap of a ferromagnetic core, which conducted the magn etic flux.…”

Section: Introductionmentioning

confidence: 99%

Acoustic energy harvesting via magnetic shape memory alloys

Farsangi

Zohoor

2019

J. Phys. D: Appl. Phys.

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This study investigates acoustic energy harvesting via magnetic shape memory alloys (MSMA). The acoustic pressure impacts the neck of a Helmholtz resonator (HR) with a flexible face made of an elastic membrane. The design of the proposed energy harvester let radial force in the membrane be tunable. An MSMA is clamped to the membrane, and a proof mass is attached to the other end. The enhanced sound pressure vibrates the membrane and, therefore, excites the base of the MSMA specimen made of Ni-Mn-Ga to apply strain to it. Inserting strain onto the MSMA leads to variant reorientation and change of magnetization vectors, resulting in a change in flux passing through the pickup coil. Therefore, based on Faraday's law of induction, the voltage will be generated in the coil surrounding the MSMA element. On the other hand, an electrical circuit with a resistor and a capacitor is added to the energy harvester to obtain electrical resonance. After obtaining the governing equations of motion, the modeling approach is verified based on the experimental results reported in the literature. The equations are solved numerically to study the effect of different factors on the power generated by the proposed energy harvester. According to the obtained numerical results, changing the geometric parameters and the proof mass, one can obtain power from the MSMAbased acoustic energy harvester as comparable as that from the piezoelectric one.

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Modeling and parametric studies of magnetic shape memory alloy–based energy harvester

Cited by 8 publications

References 25 publications

Review of MSM Actuators: Applications, Challenges, and Potential

Review of MSM Actuators: Applications, Challenges, and Potential

Analysis and modification of a common energy harvesting system using magnetic shape memory alloys

Acoustic energy harvesting via magnetic shape memory alloys

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