Energy harvesting from plate using Magnetic Shape Memory Alloys

Salarieh, Hassan; Naderi, Hossein

doi:10.1109/icrom.2018.8657576

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…Although the stiffness of the resonator is increased, the applied force exerted on the oscillating mass is also increased by the power of 2, which leads to higher MSMA strain. Based on relation (12), higher applied strain on the MSMA and nat ural frequency reduces the equivalent damping of the MSMA. Therefore, with the increase of applied force and the decrease of equivalent damping, one can see a higher level of the gener ated power at a higher radius of the resonator's neck.…”

Section: Numerical Resultsmentioning

confidence: 99%

“…Sayyaadi et al [12] developed constitutive equations of the MSMA to fit the experimental results better when used in a vibrational energy harvester. The input force was a sinu soidal strain applied directly to the MSMA, and the gener ated voltage was considered without taking into account the electrical circuit to measure the generated power.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, considering the advantages of the MSMA, such as higher fatigue life, over the piezoelectricbased AEH, one can realize its powerful potential to be used in AEH. It should be noted that sev eral works have been carried out to study the MSMAbased energy harvester, some of which applied force directly to the MSMA [12,14], and other studies applied the sinu soidal force by a shaker [13]. In addition, these studies have mainly focused on developing constitutive equations and system modeling.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Numerical Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Acoustic energy harvesting via magnetic shape memory alloys

Farsangi

Zohoor

2019

J. Phys. D: Appl. Phys.

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“…MSM alloys do not exhibit this disadvantage and respond fast to magnetic fields, with a reaction time of several milliseconds [11]; thus, they are potential candidates for application in electromagnetic actuators, sensors, and energy harvesters [12]. Furthermore, the smart properties of MSM alloys enable the design of self-sensing actuators which can be controlled by monitoring the state of the MSM element without the use of additional sensors [13], [14].…”

Section: A Magneto-mechanical Response Of Msm Alloysmentioning

confidence: 99%

Next Generation Autofocus and Optical Image Stabilization System for Camera Modules Using Magnetic Shape Memory Actuators

Gabdullin

Ahmad

2020

IEEE Access

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Currently, camera modules are used in a wide range of applications ranging from micropositioning actuator systems used in smartphones to larger modules used in stationary cameras, CCTV, and others. Modern camera modules are required to perform positioning functions to improve the stability and quality of captured images. These functions mainly include the autofocus (AF) and optical image stabilization (OIS) functions. Traditionally, separate actuators and sensors are used for AF and OIS, each contributing towards energy consumption, module size, and manufacturing costs. This is particularly disadvantageous in the case of smartphones owing to their inherent space and battery charge limitations. This paper presents a novel Magnetic Shape Memory (MSM) actuator system that combines the AF and OIS functions, which are performed using two actuators; thus, this system is a simple, compact, and costeffective solution to the drawbacks of conventional technology. Furthermore, the smart properties of MSM alloys reduce the energy consumption of these systems through the utilization of their inherent holding forces and the associated shape memory effect. The realization of AF and OIS functions is discussed and verified experimentally for the proposed actuator system using data obtained from a fabricated prototype.

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“…They investigated the effect of different parameters including bias magnetic field, prestrain and number of MSMA on generated voltage. Sayyaadi et al [20] studied the effects of geometric parameters on the output voltage of MSMA based clamped-clamped energy harvester to build a background for geometric optimization. The design optimization was performed to find the optimal shape and configuration of energy harvester together with the effects of proof mass and bias field.…”

Section: Introductionmentioning

confidence: 99%

Multiphysics modeling of an MSMA-based clamped–clamped inertial energy harvester

Farsangi

Zakerzadeh

2019

Smart Mater. Struct.

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In this paper, an alternative way of harvesting energy from ambient vibration is investigated through proposing a novel inertial energy harvester using magnetic shape memory alloys (MSMAs). To this end, a clamped-clamped beam is coupled with MSMA units which are attached to its roots. A shock load is applied to a proof mass in the middle of the beam. The beam vibration causes longitudinal strain in the MSMAs and as a result the magnetic flux alters in the coils wounding around the MSMA units and produce an AC voltage. To have a reversible strain in MSMAs, a bias magnetic field is applied in transverse direction of the MSMA units. The large scale vibration of Euler-Bernoulli beam is modeled with the help of von Kármán theory and a thermodynamics-based constitutive model is used to predict the nonlinear strain and magnetization response of the MSMAs. In order to predict the output voltage during martensite variant reorientation in MSMAs is studied with the help of Faraday's law of induction. After showing the results for a clamped-clamped energy harvester, its performance is compared with cantilever one. The results show that this novel energy harvester has the capability of using as an alternative to the current piezoelectric and magnetostrictive ones for harvesting energy from ambient vibrations. Comparing the performance of clamped-clamped MSMA based energy harvester with cantilever one state that it can have some advantages over the cantilever energy harvester.

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Energy harvesting from plate using Magnetic Shape Memory Alloys

Cited by 4 publications

References 6 publications

Acoustic energy harvesting via magnetic shape memory alloys

Acoustic energy harvesting via magnetic shape memory alloys

Next Generation Autofocus and Optical Image Stabilization System for Camera Modules Using Magnetic Shape Memory Actuators

Multiphysics modeling of an MSMA-based clamped–clamped inertial energy harvester

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