縱扭復合型超聲波電機的若干問題研究.pdf

1、浙江大學博士學位論文縱扭復合型超聲波電機的若干問題研究姓名：龔書娟申請學位級別：博士專業(yè)：電機與電器指導教師：郭吉豐20050501摘要ABSTRACTThedevelopinghisto啪basicpfinciple，characteristics，鋤dclassificationofⅡ1eultrasonicmotorisstatedbrieny，tlleevolvementofmestanding—wave，especiallyt

2、11ehybridlongitIldinal—torsionalultmsonicmotorisintmduced，mefollowingtllreepmblemsarediscussedmainly：modedegenemcya11dstmcture，contactmodelandnoise，ThustlleresearchcontentisconfimedThebasicprincipleandstmctureofthehybrid

3、longitudinal一torsionalul訂asonicmotorisimroduced，t11eresonancefrequencyequationsoflong而ldinalandtorsionalVibTationsofulnasonicmotorusingtlleMasonequivalentcircuitarededuced，merelationshipbet、veenphysicaldimensionaJldthere

4、sonallcefkquencyisgiven，tlledesignmeoryoflongitlldillalaIldtorsionalvibratorsisfoundedAncwhollow—stmcturehybridlongitudinaJtorSionalultrasonicmotorisputfonⅣardwhichtakesuseofthefirst—torsional一vibrationmodeandtllelonghd協(xié)

5、alvibtationmodecausedbyfirstord腎radial—vibrationindesi印ingofthiskmdOfmotortorealizemodedegenerac孔whichhasmanycharact硎stics，such嬲，convenientmodedegenemcy’smallaxial—scalea11dhigh—torque；thefkquenciesaIldmodesoflongitudill

6、alvibrationa11dtorsionalVibrationsas、vellasmerelationsbct、Ⅳeens缸1Ictureand丘equencyaregivenbyFEM觚dexperiments1meforcetraIlsfcrmodela11daIla：Iyticalmethodofmecharacteristicsisputfo八vardfortllefirsttimeFirstofalltherelation

7、sIlipsbetweenthecontact鋤gle，preload，aIldphysicalpar鋤etersofmctionalmaterialsaregivenaccordingtotlleimplllsecollservationlawa)(ially，t11emodelofm“onalforceisimpmvedon，men廿1eeq刪onsdescribingoutputtorque，amplitudesoflongitu

8、dinalaIldtorsionalvibration，aIldpar鋤etersoftllerotorisderiVedaccordingtot11eprincipletllat也eworkdonebyt11eloadisequaltotllatbymedrivingforceinonevibratingcycleA11factorstllatinnuencemema)(imumtorqueandno—108dspeedisanaly

9、zed，也efomulafortransfefe伍ciencyon也estato“rotorim剛keisdeducted，t11erclationshipbetweenmepreloada11doutputtorqueandtllee丘bcton也c廿ansfcremciencyontlle咖tor，rotorinte商ceofotllerparametersaccordingtotheabovefo啪ulaisgiVen，tllel

10、owemciencyofthis勺，pemotorisexplainedThecouplingproblemoflongitudinalvibrationoft11ehybrid10ngitudi砌torsionalultrasonicmotorisprobcd，t11esimplmedcouplingmodeloftllelongitudi蒯vibrationcombiningt11emnningcirc啪stanceoftllemo