新型多层悬臂梁压电发电装置发电性能研究

50520143JOURNALOFMECHANICALENGINEERINGVol.50No.5Mar.2014DOI10.3901/JME.2014.05.135*(225127)ANSYS12.0()38Hz1.25mmTN836StudyontheGeneratingPerformanceofaNovelPiezoelectricGeneratorwithMultilayerCantileversGONGJunjieRUANZhilinLIKangchaoBIANYixiang(CollegeofMechanicalEngineering,YangzhouUniversity,Yangzhou225127)AbstractInordertoimprovethegeneratingperformanceofpiezoelectricgenerator,anovelpiezoelectricgeneratorwithmultilayercantileverbeamsisdesigned,andthefiniteelementmodelwiththree-layercantileverbeamsisestablishedbasedonANSYS12.0forstaticanalysisandmodalanalysis.Theresultsofthesimulationshowthatthepiezoelectriccantileverbeamshaveaconsistentstressandvibrationruleandconformtostructuralcharacteristicsofthetypicalcantileverbeam.Onthebasisofthis,electromechanicalcouplingmodelisestablishedtoanalyzethenephogramandfluctuationcurveofvoltagewithoutsideincentiveloadonthefixedend(base)ofeachlayerofcantileverbeam.Physicaldevicewiththree-layerbeamsismanufacturedtotestthestress,naturalfrequencyandoutputvoltage.Itcanbefoundthattheexperimentalresultscoincidewellwiththesimulationones.Generatingperformanceinfluenceonpiezoelectricunimorphcantileverwithdifferentvibrationfrequencyandamplitudeisinvestigatedbyexperimentalandsimulatedmethods.Theresultsindicatethatthenovelpiezoelectricgeneratorwithmultilayercantileverhastheoptimalgeneratingperformancewithanenvironmentalvibrationfrequencyof38Hzandamplitudeof1.25mm.Keywordsmultilayerpiezoelectricgeneratorfiniteelementanalysiselectromechanicalcouplingmodelgeneratingperformancepiezoelectricunimorphcantilever0*(51275447)2013032920130925[1],(),,MEMSMEMS,[2-6]505136[7-8]KORLA[9]41[10]-,[11],[12][13],,ANSYSANSYS12.011212()2ANSYS12.0115mm132g1/(kg/m3)/GPa/mm/mm/mm82301300.4245200.40PZT-5H7500620.3210200.5520143137(F/m)ε=7.1240007.1240005.841æö÷ç÷ç÷ç÷ç÷ç÷ç÷÷çèø×10–9(1)e(C/m2)e=004.1004.10014.1000010.5010.500æö-÷ç÷ç÷ç÷-ç÷ç÷ç÷÷ç÷ç÷ç÷ç÷ç÷ç÷ç÷÷ç÷ç÷ç÷ç÷÷çèø(2)c(N/m2)c=13.27.17.30007.113.27.30007.37.311.500000030000002.60000002.6æö÷ç÷ç÷ç÷ç÷ç÷ç÷÷ç÷ç÷ç÷ç÷ç÷ç÷ç÷÷ç÷ç÷ç÷ç÷÷çèø×1010(3)2.15mm3461.2MPa32.2574567622/Hz37.97989.479300.68358.06434.71460.25505138238Hz300Hz38Hz2.3()30Hz1mm0.02SOLID5SOLID45882.6V0.25s9992.8V33.1ANSYS102YE1311DHEV-501100HzCrasV7.0103.233/MPa/Hz/V1.8237.9792.81.8436.2002.63ANSYS2014313942mm4mm6mm8mm10mm11111110mm1.8MPa1mm10Hz20Hz30Hz40Hz50Hz60Hz70Hz40Hz0.25mm0.50mm0.75mm1.00mm1.25mm1.50mm1.75mm1212(37.979Hz)121.25mm10mm38Hz1.25mm4.0V5(1)(2)(3)38Hz1.25mm4.0V[1].[J].200816(1)71-75.KANJunwuTANGKehongWANGShuyunetal.Modelingandsimulationofpiezoelectriccantilevergenerators[J].OpticsandPrecisionEngineering200816(1)71-75.[2]HENRYASDANIELI.Areviewofpowerharvestingfromvibrationusingpiezoelectricmaterials[J].The505140ShockandVibrationDigest200436(3)197-205.[3]SALEMSOTHMANS.Areviewofvibration-basedMEMSpiezoelectricenergyharvesters[J].EnergyConversionandManagement2011(52)500-504.[4]LEFEUVREEBADELARICHARDCetal.Acomparisonbetweenseveralvibration-poweredpiezoelectricgeneratorsforstandalonesystems[J].SensorsandActuatorsAPhysical2006126(2)405-416.[5].Ansys0-3[J].201133(6)968-972.HEXuewenHUANGGuoping.Ansys-basedfiniteeIementanaIysisof0-3modelpiezoeIectricvibrator[J].PiezoelectricsandAcoustooptics201133(6)968-972.[6].[J].201046(9)87-92.YUANJiangboXIETaoSHANXiaobiaoetal.Vibratedmodelandexperimentsofmultiplepiezoelectriccantileversinenergyharvesting[J].JournalofMechanicalEngineering201046(9)87-92.[7].[J].200939(6)1550-1553.TANGKehongKANJunwuRENYuetal.Poweranalysisandtestofpiezoelectricgenerator[J]JournalofJilinUniversity200939(6)1550-1553.[8].[J].201119(9)2108-2115.KANJunwuWANGShuyunPENGShaofengetal.Outputperformanceofpiezoelectricgeneratorswithmulti-vibrators[J].OpticsandPrecisionEngineering201119(9)2108-2115.[9]KORLASLEONRATANSELINetal.Designandtestingofanefficientandcompactpiezoelectricenergyharvester[J].MicroelectronicsJournal201142(2)265-270.[10]KANJWTANGKHRENYetal.Energyefficiencyofpiezoelectricmonomorphcantilevergenerator[J].OpticsandPrecisionEngineering200816(12)2398-2405.[11].[J].200920(19)2298-2303.WANGGuangqing.Modelingandsimulationofapiezoelectricstackedgenerator[J].ChinaMechanicalEngineering200920(19)2298-2303.[12].[J].200737(2)367-371.CHENGGuangmingPANGJianzhiTANGKehongetal.Developmentofmeasuringsystemforelectricitygeneratingcapacityofpiezoelectricceramics[J].JournalofJilinUniversity200737(2)367-371.[13].ANSYS[J].201133(4)557-560MIAOJianZHURuogu.ThefiniteelementanalysisoftwinpiezoelectricmicrocantileverbasedonANSYS[J].Piezoelectrics&Acoustooptics201133(4)557-560.()[e-mail]