Analyzes the behavior of Galfenol beams in vibration energy harvesters, indicating their performance under various conditions.
This paper describes a static finite element model of magnetostrictive materials, considering magnetic and elastic boundary value problems that are bidirectionally coupled through stress and field dependent variables. The finite element method is applied to a small vibration-driven generator of magnetostrictive type employing Iron-Gallium alloy (Galfenol) for the purpose of the behaviour analysis of the Galfenol beams under bending conditions by illustrating the spatial variations in stress and magnetic field and finally the numerical results are compared with the experimental ones.
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上野 et al. (2012) studied this question.
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