Bandgap enhancement of a piezoelectric metamaterial beam shunted with circuits incorporating fractional and cubic nonlinearities

B Chen, Y Zheng, S Dai, Y Qu - Mechanical Systems and Signal …, 2024 - Elsevier
Nonlinear metamaterials have been widely studied for their potential to broaden the
bandgap for vibration suppression. However, the bandgap widening effect induced by …

Flexural wave compression behaviors of programmable graded piezoelectric meta-beams

S Dai, H Gao, J Mao, P Gao, Y Qu - International Journal of Mechanical …, 2024 - Elsevier
Active electromechanical metamaterials have drawn significant attention due to their
remarkable tunability and adaptability in vibration and wave control. Exploiting the …

Low frequency coupled bandgap regulation of staggered piezoelectric supercell beam

W Wu, X Shan, H Zhang, C Sun, X Du, Z Min - International Journal of …, 2024 - Elsevier
The study proposes a staggered piezoelectric supercell beam to enhance the traditional
passive periodic metamaterial bandgap. This beam features varying inductance in each cell …

Enhancing sound transmission loss of a piezoelectric metastructure shell in the low-frequency range using negative-capacitance shunting

Y Zheng, H Yuan, W Feng, Y Qu, Y Luo - European Journal of Mechanics-A …, 2025 - Elsevier
To address the low-frequency sound insulation problem of shell structures, we explore and
exploit a piezoelectric metastructure shell (meta-shell) with negative-capacitance (NC) …