压电陶瓷激振器定频激振能力的评价方法-researchgate

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1、Seediscussions,stats,andauthorprofilesforthispublicationat:https://www.researchgate.net/publication/325498038Article·October2015CITATIONSREADS041author:HuiLiNortheasternUniversity(Shenyang,China)48PUBLICATIONS94CITATIONSSEEPROFILESomeoftheauthorsofthispublicationare

2、alsoworkingontheserelatedprojects:Vibration,impactandnoisestudyoffibermetallaminatedplatesandshellswithmultipleviscoelasticlayersViewprojectNonlinearvibrationtestandanalysisofcompositeandmetalplateandshellstructuresViewprojectAllcontentfollowingthispagewasuploadedbyHuiLion01June2018.Th

3、euserhasrequestedenhancementofthedownloadedfile.第37卷第10期东北大学学报(自然科学版)Vol．37，No．102016年10月JournalofNortheasternUniversity(NaturalScience)Oct．2016doi:10．3969/j．issn．1005－3026．2016．10．012压电陶瓷激振器定频激振能力的评价方法李晖，薛鹏程，孙伟，闻邦椿(东北大学机械工程与自动化学院，辽宁沈阳110819)摘要:提出了评价压电陶瓷激振信号的线性度指标，并基于自主研发的压电陶瓷激励反馈系统，对一

4、款PZT陶瓷进行了实验研究．在分析其激振力的影响因素及影响规律的基础上，提出了压电陶瓷定频激振能力的评价方法．由实验数据建立了评价方程，得到了其定频激振的频率置信区间，使其可以更好地被应用到板壳类薄壁构件的高阶振动测试研究中．研究结果表明，压电陶瓷定频激振能力的总体特点是在低频状态下可实现高幅定频激励，而高频状态下仅能实现低幅定频激励．关键词:压电陶瓷激振器;定频激振;评价方法;激振能力;线性度中图分类号:TB53文献标志码:A文章编号:1005－3026(2016)10－1421－05EvaluationMethodofSingle-FrequencyExcita

5、tionCapabilityforPiezoelectricCeramicExciterLIHui，XUEPeng-cheng，SUNWei，WENBang-chun(SchoolofMechanicalEngineering＆Automation，NortheasternUniversity，Shenyang110819，China．Correspondingauthor:LIHui，E-mail:lh200300206@163．com)Abstract:Thelinearityindexwasproposedforevaluatingpiezoelectricc

6、eramicexcitationsignal，andexperimentwascarriedouttostudyaPZTceramicsbasedonself-designedpiezoceramicexcitationfeedbacksystem．Afteranalyzingtheinfluencefactorsandlawofexcitationforce，anevaluationmethodofsingle-frequencyexcitationcapabilitywasproposed．Evaluationequationwasestablishedbase

7、dontheexperimentaldata，andconfidenceintervalinfrequencydomainofsingle-frequencyexcitationwasobtainedtomakegooduseofpiezoelectricceramicexciterduringthehighordervibrationtestofthin-walledstructures．Theoverallcharacteristicsofthepiezoelectricceramicsingle-frequencyexcitationshowedthath