精品中英文翻译_频谱分析在转子动平衡中的应用_定.doc

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1、专业.专注本科毕业论文（设计）相关中英文翻译资料资料题目：频谱分析在转子动平衡中的应用学生姓名：所在院系：机电学院所学专业：机电技术教育指导老师：.学习参考.专业.专注APPLICATIONOFFREQUENCYSPECTRUMANALYSISINTHEROTATORMOVINGEQUILIBRIUMABSTRACTTheexperimentalequipmentisdevelopedtosimulatetherotatorvibration.Therunningstateofmachineissimulatedb

2、yusingdifferentrunningconditions.Thevibrationcausedbynon-equilibriummassisanalyzedanddiscussedforfirstorderwithfocusload.Theeffectivemethodisfoundoutbyusingfrequencyspectrumanalysis.INTRODUCTIONIntheconventionalislandofnuclearpowerplant,turbinegeneratorsetisav

3、eryimportantequipmentinwhichthecorethermalenergyistransferredintoelectricenergy.Whentheturbinegeneratorsethasrunforlongtime,theoriginalequilibriumofsystemwouldbeupsetbecauseoftheremnantdeformedofthemetal,abrasionordamagingofthecomponentsetc.Asaresult,thevibrat

4、ionwillbeincreased.Soitisnecessarytoadjusttheequilibriumatspot.Ontheotherhand,alargeturbinegeneratorsetalsoneedstheworkforadjustingtheequilibriumintheprocessofmanufacture,debugging,installationandoperation.Themovingequilibriumtechniqueatspotisanimportantmeanst

5、oeliminatetheviolentvibrationoftheturbinegeneratorset.Wecouldhaveadefinitelyviewforthevibrationtype,vibrationpowersourceandvibrationpropertybyanalyzingthevibrationoftheturbinegeneratorsetordoingsomespecialexperiment.Whenthevibrationsignalisobtained,thefrequenc

6、yspectrumcouldbeusedtoanalysisthevibrationsignalinordertodiagnosequickly.Usingfrequencyspectrumanalysis,theelectricalsignalofvibrationthatisobtainedbythevibrationsensorandhasawidefrequencyrangewillbedecomposedintoseveralmainfrequencycompositions.Differentfrequ

7、encycompositionshavedifferentinfluenceontheturbinegeneratorset.Thefrequencyspectrumanalysisisaveryusefulmethodtostudythevibrationofturbinegeneratorset.Thevibrationcausedbyrotatormassnon-equilibriumwithconcentratedloadisdiscussedandanalyzedinthispaper.Andaneffe

8、ctivemethodtopreventthevibrationispresentedbyusingfrequencyspectrumanalysis.1EXPERIMENTALEQUIPMENT.学习参考.专业.专注Theexperimentalsystemconsistsofthemotor,shaftcouplingandrotoretc..Itsst