[1] [1] ZEADALLY S, SHAIKH F K, TALPUR A, et al. Design architectures for energy harvesting in the internet of things［J］.Renewable and Sustainable Energy Reviews,2020,128:109901.

[2] [2] ZHANG Yun, WANG Zhanjiang, JIANG Shulan, et al. Retrospectives and perspectives of vibration energy harvest technologies［J］.Mechanical Science and Technology for Aerospace Engineering,2019,38(7):985-1018.

[3] [3] WANG Y F, LI S T, GAO M Y, et al. Analysis, design and testing of a rolling magnet harvester with diametrical magnetization for train vibration［J］.Applied Energy,2021,300:117373.

[4] [4] FANG Z, TAN X, LIU G, et al. A novel vibration energy harvesting system integrated with an inertial pendulum for zero-energy sensor applications in freight trains［J］.Applied Energy,2022,318:119197.

[5] [5] DE PASQUALE G, SOM A, ZAMPIERI N. Design, simulation,and testing of energy harvesters with magnetic suspensions for the generation of electricity from freight train vibrations［J］.Journal of Computational and Nonlinear Dynamics,2012,7:041011.

[6] [6] ZHANG Kun, ZHANG Bo, ZHAO Haojie, et al. Piecewise nonlinear electromagnetic vibration energy harvester［J］.Micronanoelectronic Technology,2023,60(5):764-769.

[7] [7] GAO M Y, CONG J L, XIAO J L, et al. Dynamic modeling and experimental investigation of self-powered sensor nodes for freight rail transport［J］.Applied Energy,2020,257:113969-113969.

[8] [8] CHEN R, REN L, XIA H, et al. Energy harvesting performance of a dandelion-like multi-directional piezoelectric vibration energy harvester［J］.Sensors and Actuators A: Physical,2015,230:1-8.

[9] [9] ABOULFOTOH N A, ARAFA M H, MEGAHED S M. A self-tuning resonator for vibration energy harvesting［J］.Sensors & Actuators A: Physical,2013,201(Complete):328-334.

[10] [10] ZHOU S, CAO J, DANIEL J, et al. Harmonic balance analysis of nonlinear tristable energy harvesters for performance enhancement［J］.Journal of Sound & Vibration,2016,373:223-235.

[11] [11] ZHANG J, QIN L. A tunable frequency up-conversion wideband piezoelectric vibration energy harvester for low-frequency variable environment using a novel impact and rope-driven hybrid mechanism［J］.Applied Energy,2019,240:26-34.

[12] [12] WANG Lesheng, WANG Haifeng, WANG Shilong, et al. Size optimization and research of unimorph cantilever of piezoelectric oscillator［J］.Journal of Qingdao University(Engineering & Technology Edition),2020,35(4):1-5.

[13] [13] ZHANG Xuhui, TAN Houzhi, YANG Wenjuan, et al. Research and development of multi-directional piezoelectric vibration energy harvesting technology［J］.Piezoelectrics & Acoustooptics,2019,41(2):301-310.

[14] [14] ZHANG G, GAO S, LIU H, et al. Design and performance of hybrid piezoelectric-electromagnetic energy harvester with trapezoidal beam and magnet sleeve［J］.J Appl Phys,2019,125(8):084101.

[16] [16] TAN Jiangping, WANG Guangqing, JU Yang, et al. Nonlinear dynamic characteristics and experimental validation of a multi-stable piezoelectric vibration energy harvester［J］.Journal of Vibration Engineering,2021,34(4):765-774.

[17] [17] WEI S, HU H, HE S. Modeling and experimental investigation of an impact-driven piezoelectric energy harvester from human motion［J］.Smart Materials & Structures,2013,22(10):105020.

[18] [18] JASIM A, YESNER G, WANG H, et al. Laboratory testing and numerical simulation of piezoelectric energy harvester for roadway applications［J］.Applied Energy,2018,224:438-447.

[19] [19] GALCHEV T V, MCCULLAGH J, PETERSON R L, et al. Harvesting traffic-induced vibrations for structural health monitoring of bridges［J］.Journal of Micromechanics and Microengineering,2011,21(10):104005.

[20] [20] KHAN F U, AHMADI. Vibration-based electromagnetic type energy harvester for bridge monitoring sensor application［C］//Islamabad, Pakistan: 2014 International Conference on Emerging Technologies (ICET),2014:125-129.

[21] [21] ZHAO Qingling, YU Pengbo, LIU Shiyu, et al. Experimental study on power generation performance of several types of piezoelectric-electromagnetic composite energy harvesters［J］.Journal of Xi’an Jiaotong University,2022,56(11):195-204.

[22] [22] IQBAL M, NAUMAN MM, KHAN F U, et al. Multimodal hybrid piezoelectric-electromagnetic insole energy harvester using PVDF generators［J］.Electronics,2020,9(4):635.