[1] [1] YANG J,CHEN J,LIU Y,et al.Triboelectrifcation-based organic flm nanogenerator for acoustic energy harvesting and self-powered active acoustic sensing［J］.ACS Nano, 2014,8:2649-2657.

[2] [2] WU Meng,OU Yi,MAO Haiyang,et al.Multi-resonant wideband energy harvester based on a folded asymmetric M-shaped cantilever ［J］.Aip Advances,2015,5:077149.

[3] [3] CHEN J,YANG J,LI Z L,et al.Networks of triboelectric nanogenerators for harvesting water wave energy:a potential approach toward blue energy［J］.ACS Nano,2015 9:3324-3331.

[4] [4] AKAYDIN H,ELVIN N,ANDREOPOULOS Y,et al.Wake of a cylinder:a paradigm for energy harvesting with piezoelectric materials［J］.Experiments in Fluids,2010, 49(1):291-304.

[5] [5] XIAO Q,ZHU Q.A review on flow energy harvesters based on flapping foils［J］.Journal of Fluids & Structures, 2014,46(2):174-191.

[6] [6] SARI I,BALKAN T,KULAH H,et al.An electromagnetic micro power generator for wideband environmental vibrations［J］.Sens Actuators,2008,145:405-413.

[7] [7] LIU J Q,FANG H B,XU Z Y,et al.A MEMS-based piezoelectric power generator array for vibration energy harvesting［J］. Microelectronics,2008,39:802-806.

[8] [8] HOBBS W,HU D.Tree-inspired piezoelectric energy harvesting［J］.Journal of Fluids & Structures,2012, 28(1):103-114.

[9] [9] XIE X,WANG Q,WU N.Energy harvesting from transverse ocean waves by a piezoelectric plate［J］. International Journal of Engineering Science,2014,81:41-48.

[10] [10] HU Yili,YANG Bin,CHEN Xiang,et al.Modeling an experimental study of a piezoelectric energy harvester from vortex shedding-induced vibration［J］.Energy Conversion and Management,2018,162:145-158.

[11] [11] LIU J Q,FANG H B,XU Z Y,et al.A MEMS-based piezoelectric power generator array for vibration energy harvesting［J］. Microelectronics, 2008,39:802-806.

[12] [12] WU Hao,TANG Lihua,YANG Yaowen,et al.A novel two-degrees-of-freedom piezoelectric energy harvester［J］.J Intell Mater Syst Struct,2013,24:357-363.

[13] [13] HU Y,XU Y.A wideband vibration energy harvester based on a folded asymmetric gapped cantilever［J］.Appl Phys Lett,2014,104:053902.