超声驻波悬浮谐振状态的仿真

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1、硕士学位论文超声驻波悬浮谐振状态的仿真ACOUSTICSTANDINGWAVELEVITATION–SIMULATIONOFTHERESONANTPanagiotisPapouris哈尔滨工业大学2016年7月国内图书分类号：TB559,O426.9学校代码：10213国际图书分类号：621密级：公开工程硕士学位论文超声驻波悬浮谐振状态的仿真硕士研究生：帕诺斯导师：董惠娟教授申请学位：全日制工程硕士学科：机械电子工程所在单位：机电工程学院答辩日期：2016年7月授予学位单位：哈尔滨工业大学ClassifiedIndex:TB559,O426.9U.D.C:621Dissertationfort

2、heMasterDegreeinEngineeringACOUSTICSTANDINGWAVELEVITATION–SIMULATIONOFTHERESONANTCandidate:PapourisPanagiotisSupervisor:Prof.HuijuanDongAcademicDegreeAppliedfor:MasterofEngineeringSpecialty:MechanicalandElectricalEngineeringAffiliation:SchoolofMechatronicsEngineeringDateofDefence:July,2016Degree-Con

3、ferring-Institution:HarbinInstituteofTechnologyDissertationfortheMasterDegreeinEngineering–HITAbstractThefirstfiveresonancemodesweresimulatedusinganacousticlevitatorconsistedofonesingle-axisLangevinpiezoelectrictransducer(LPT)andonereflector.Byvaryingthedistanceofthecavity,thevalueofmaximumpressurea

4、ndrelativepotentialisobtained.Inordertoachieveabettersimulativeapproachoftheacousticfield,theminimumpossiblestepofthedistancechangethatcanalsobeexperimentallyachievedisof1μmand0.5μm.Thedisturbancesthatoccurredduringdifferentexperimentshavebeenspottedduringthesimulation.Thenon-uniformdistributionofth

5、epressureisobservedatthesecond,third,fourthandfifthlevitationmode,withouthavinganypressuredroppoints(PDPs)atthefirstresonancemode.TheacousticfieldbetweentheLPTandthereflectorissimulatedusingthefiniteelementsoftwareANSYSandMATLABforthefurthercalculationoftheparametersofthesystem.Keywords:acousticlevi

6、tation,standingwave,Gorkov‟spotential,radiationpressure,Langevintransducer,particleoscillationsIDissertationfortheMasterDegreeinEngineering–HITContentsChapter1–IntroducingAcousticLevitation........................................................................-1-1.1．Thesourceoftopic................

7、....................................................................................-1-1.2．AcousticLevitationCharacterization.......................................................................-1-1