Regular Article

Exploitation of dimension-dependent behavior of piezoelectric metamaterial with LC shunt circuit

¹ The State Key Laboratory of Bioelectronics, Jiangsu Key Lab of Remote Measurement and Control, School of Instrument Science and Engineering, Southeast University, Nanjing, Jiangsu, 210096, PR China
² School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, Shanxi 710049, PR China

^* e-mail: jiawen.xu@seu.edu.cn

Received: 18 April 2018
Received in final form: 14 August 2018
Accepted: 13 August 2018
Published online: 18 October 2018

Abstract

To release the potential of piezoelectric metamaterial with LC local resonance, in this research we discuss its dimension-dependent behavior for the first time. It's found that the bandgap behavior is primarily related to the length/width of the piezoelectric transducers. In particular, the bandgap width of the piezoelectric metamaterial can be increased by 3.01 times by optimizing the transducers which has constant area of 64 mm² and height of 0.5 mm. Moreover, it's illustrated that optimization of the dimension of transducer may yield better wave attenuation capability than adopting larger transducers. The analysis of the dimension-dependent behavior here is potential to be applied in the optimization of piezoelectric metamaterial.