A distributed parametric model of Brinson shape memory alloy based resonant frequency tunable cantilevered PZT energy harvester

被引：8

作者：

Vasundhara, M. G. ^{[1
,2
]}

Senthilkumar, M. ^{[1
]}

Kalavathi, G. K. ^{[3
]}

机构：

[1] PSG Coll Technol, Dept Prod Engn, Coimbatore 641004, Tamil Nadu, India

[2] Malnad Coll Engn, Dept Mech Engn, Hassan 573202, Karnataka, India

[3] Malnad Coll Engn, Dept Math, Salagame Rd, Hassan 573202, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF MECHANICS AND MATERIALS IN DESIGN | 2019年 / 15卷 / 03期

关键词：

Tunable; Shape memory alloy; Energy harvester; PZT; Cantilever; VIBRATION; BEAM;

D O I：

10.1007/s10999-018-9429-2

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents, an analytical model of piezoelectric vibration energy harvester consists of Brinson shape memory alloy (SMA) plate which can tune the resonant frequency. As the energy harvester should be tuned to excitation frequency in order to drive the maximum power, the temperature of SMA is varied to tune the natural frequency of the composite beam. In addition to SMA it also consists of piezoelectric layer and substructure layer. Using Euler-Bernoulli beam assumption, the expressions for frequency response of voltage, current and power outputs with temperature are obtained. From parametric study, it is observed that the tuning of natural frequency is 25-26%, for first three modes of vibration in short and open circuit conditions.

引用

页码：555 / 568

页数：14

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