異步電機轉子—軸承系統(tǒng)動力學分析與碰摩故障診斷.pdf

1、東北大學碩士學位論文異步電機轉子—軸承系統(tǒng)動力學分析與碰摩故障診斷姓名：郝建山申請學位級別：碩士專業(yè)：機械電子工程指導教師：韓清凱20060801東北大學碩士學位論文DynamicAnalysisandRub—ImpactFaultDiagnosesofAsynchronousMotorRoto廣bearingSystemAbstractAsynchronousmotorisbeingusedinmoreindustrialfields

2、becameofitssimpleinstruction，endurance，lowerpfice，easymaintenanceandSOonTherotorbearingsystemofasynchronousmotorisstudiedThedynamicsand她diagnosingtechniqueOnSOIiletypicalfaultofasyncIlIoIlousmotorrotora唧deeotystudiedinth

3、ethesisSomefamiliarfaultsofrotorareanalyzedfirstlyinthethesisThemechallismsandthedynamiccharacteristicsofallsortsofrotorfaultsareanalyzedandconcludedAndthenthedynamiccharacteristicsoftherotorof鷦yIldlronousmotorarcstudied

4、adoptingRiccatitransfermatrixmethodandFiniteelementmethodInthiswaytherelationshipbet’懈nsupportingstiffiaessandcriticalspeedsoftherotorsystemandmodeshapesobtainedatdifferentcriticalspeedisworkedoutInthes蜘ewayattheposition

5、ofbearingsthedynamiccharacteristicsofrobimpactfaultresllltedinunbalancedisanalyzedAndthenamodelexperimentisgiventovalidateifthetheoreticalanalysisandcalculationalerightFinallyamodeltestandatestonthespotofanasynchronousmo

6、torarehadtodiagnosetherubimpactfaultItcanbeelaboratedasfollowing|someimportantfaultsofasynchronousmotorandthedynamiccharacteristicsofthemalesummarizedcomprehensivelyAndthemethodsofdiagnosesofasynchronousmotoraresummarize

7、db黜2accordingtotordynamics，themechanismsandthedynamiccharacteristicsofsomekindsofvibratiousfaults，snchasunlralancedrubimpact，misalignmentcrackandbearingdamnificationete3勰ynchronousmotorrotorissimplifiedtoasinglestridemul