一种磁拨双稳态压电振动能量俘获系统

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关键词：旋转磁拨激励；对称与非对称双稳态；势阱分布；振动干涉 中图分类号：0322；TM619 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202505056

Abstract：Toeficientlyarvestowfrequncy，timevaryingotatioaleergfromtheeviromenandconvertitintoelectricalerg this paperproposesamagneticpluckingbistablepiezoeletrcvibrationenergyharvestingsystem，andestablishesitselectrohaical couplingmodelbasedotuleranBeoulieatyHamilto’spriciple，ndKichoffwBasedosmodelteetsf diferentrivingmagnetnumbersand magneticpole arangements，symmericndasymmetricbistableontheaveragepowerandperating bandwidthareinvestigatedTheefectsofdierentdrivingmagnetsontedynamicresponseoftheenergyharvesterareinvestigatedby analyzingtheamplitudeofthe magneticpluckingforceandtheexcitationperiod.Theresultsindicate thatthemaximumaveragepoweris increasedby3.1timesto 4.53mW for the alternating pole arrangement of the driving magnet compared to the identical pole arangement.The characteritisofthepotentialergydistributiooftesymmetricandasymmetricbistableergyhrvestingsystemsareoparatively analyzedeeeatsofteaseticsableitrolingthbatoplidedspssgtertalvbtol interferenceoftheenergyharvesterarerevealed.Byanalingthetime-domaindisplacementandvtage，pasetrajectoryandPoincare mapsofdierentbistableergaestigstes，tesultsidicateatthmmetricstableofigatocobutestoeasing theocurreeofvbatioalintefereandinreasigteutputvltageutoeasymmetricdistrbutioofthepotetalwelldpth.

Keywords：otatlgtcceia;saldalble;otellso;al

随着微机电传感技术的不断发展，用于实现环境监测、智能感知、灾害预警等功能的传感器网络被广泛应用于工业与民生领域，传统供电方式主要有电网排线与化学电池供电[1-2]。（剩余20654字）