studying piezoelastic and piezomagnetoelastic configurations for different excitation frequencies in mems energy harvesters

نویسندگان

saeid shakki

univ of tehran mahdi moghimi zand

univ of tehran

چکیده

typically, two configurations are used for energy harvesting, with different advantages: piezoelastic and piezomagnetoelastic. best performance of piezoelastic configuration is limited to its narrow bandwidth around the resonance frequency. if the excitation frequency slightly deviates from the resonance frequency, the power-out is severely reduced. to overcome this, the piezomagnetoelastic has been introduced. this configuration can be used in non-resonant frequency for the generation of high power. this paper investigates the effects of frequency on the two mentioned configurations. the results of the study indicate that at high frequency, piezomagnetoelastic operation is better than the piezoelastic; but at low frequencies, this configuration has weakness. typically, two configurations are used for energy harvesting, with different advantages: piezoelastic and piezomagnetoelastic. best performance of piezoelastic configuration is limited to its narrow bandwidth around the resonance frequency. if the excitation frequency slightly deviates from the resonance frequency, the power-out is severely reduced. to overcome this, the piezomagnetoelastic has been introduced. this configuration can be used in non-resonant frequency for the generation of high power. this paper investigates the effects of frequency on the two mentioned configurations. the results of the study indicate that at high frequency, piezomagnetoelastic operation is better than the piezoelastic; but at low frequencies, this configuration has weakness.

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عنوان ژورنال:
journal of computational applied mechanics

جلد ۴۷، شماره ۲، صفحات ۲۴۱-۲۴۶

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