To solve power supply problem of wireless network nodes for floating bridge status monitoring system,this paper designs a kind of self sustaining piezoelectric power supply.It converts the mechanical energy which produced in the floating bridge′s work environment into vibration excitation source,so as to extend the load′s continuous effect and correspondingly extend the power supply time.The ANSYS software was used to simulate the dynamic power generation characteristics of self sustaining piezoelectric structure carry out the qualitative analysis of the effect of principle of the relevant parameters on the power generation characteristics.Then the Maxite hammer machine test system was built to simulate the impact test. The research results show that the new power supply is able to collect the impact energy efficiently, and improve the electromechanical conversion efficiency greatly.
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黎晖,王彪,沈冬祥,钟小生.浮桥监测系统用新型压电电源的研究[J].压电与声光,2015,37(1):162-166. LI Hui, WANG Biao, SHEN Dongxiang, ZHONG Xiaosheng. Research on A New Piezoelectric Power Supply for Floating Bridge Monitoring System[J]. PIEZOELECTRICS AND ACOUSTOOPTICS