[1] KRYLOV V V.New type of vibration dampers utilising the effect of acoustic ‘black holes’［J］. Loughborough University, 2004, 90(5):830-837.

[2] JI H, LIANG Y, QIU J, et al.Enhancement of vibration based energy harvesting using compound acoustic black holes［J］.Mech Syst Signal PR, 2019, 132: 441-456.

[3] ZHAO L, CONLON S C, SEMPERLOTTI F. Broadband energy harvesting using acoustic black hole structural tailoring［J］.Smart Mater Struct, 2014, 23(6):65021.

[4] BECK B S.Improved negative capacitance shunt damping with the use of Acouscti black holes［C］//［S.l.］:Proceedings of SPIE-The International Society for Optical Engineering, 2014.

[5] SCHILLER N H, LIN S S, CABELL R H, et al. Design of a variable thickness plate to focus bending waves［M］.New York:Institute of Noise Control Engineering, 2012.

[6] HUANG W, JI H, QIU J, et al.Analysis of ray trajectories of flexural waves propagating over generalized acoustic black hole indentations［J］. Journal of Sound and Vibration, 2018, 417:216-226.

[7] FERRARI M, FERRARI V, GUIZZETTI M, et al. Piezoelectric multifrequency energy converter for power harvesting in autonomous microsystems［J］. Sensors and Actuators A:Physical, 2008, 142(1): 329-335.

[8] BAEK K H, HONG S K, KIM S B, et al.Rectifier and structural design for efficient energy harvesting system from impact-based piezoelectric array［C］//Aveiro, Portugal:Proceedings of ISAF-ECAPD-PFM, 2012.

[9] LIU J, FANG H, XU Z, et al.A MEMS-based piezoelectric power generator array for vibration energy harvesting［J］.Microelectronics Journal, 2008, 39(5): 802-806.

[10] LIEN I C, SHU Y C.Piezoelectric array of oscillators with respective electrical rectification［J］.SPIE, 2013:868806.

[11] MOON J W, JUNG H J, BAEK K H, et al.Optimal design and application of a piezoelectric energy harvesting system using multiple piezoelectric modules［J］.J Electroceram, 2014, 32(4):396-403.