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:屈梁生 史东锋( ,710049) 、。、。,,。 TH165.3 TH1131989,,[1～2]。,。,,。,,。,,,。。FFT,,()、、,、、,。,、。,,,,。,、。(CF920,B&K2032)。HP5832A,。,、,。,,,。,IEEETrans.on.IM,。,,[3～4]。184199812 、JournalofVibration,Measurement&Diagnosis Vol.18No.4Dec.1998:1998-08-31。1 ,,。1,,,。,,。,。100,、。,,“,”,。,,,,。,。、,。1 ,,、;、;。。。FFT,,。,FFT。,。1,、。236 、 181 1.1 ,0.5,,。。2(a)FFT (b)FFT(c)FFT (d)50HzFFT2 ,FFT,。FFT,。2(a),,0.47X。,。90°,,,,。2(b)CO2,,,。2(c)CO2,0.83X,,,2374::。CO2,,,,。,。2(d)2(a),50Hz,,X,Y,,,50Hz。1.2 ,。3(a)3(b),、,“”,。3(c)3(d),,,,。(a) (b) (c) (d)3 1.3 43,。(a) (b) (c)(d) (e) (f)4 238 、 18,4(b),,。4(d),,,。4(f),,。2 ,。,,,。,、、、;、,;,,。,。,,、,BodeNequst。,。,,,。(),。,,,,,,(,),。,,,,,,,。,。,,,;,FFT,、、,,、。,,、、A/D,,、。,,,。[5]。,。P(P=0.5·(a2+b2),,ab)θ(θ=arctgy0sinUx0sinT)x0(y0)T(U)Bode,、。2394::,。,2379r/min,5736r/min。5Bode,,,。,,,2270r/min。6,180°,,。+—— *—— 0——5 Bode 6 ,。[5]。3 ,。,:(1) ,,,;(2) ,,;(3) ,,,。(4) :,,,;(5) ,、,。,,,,。,,,、、240 、 187 。,,。,。,。N=1200,fs=1000Hz。7。,,:“+”8 。,,。8,。,21,。,21。,,。。 ,,(9)(10),99 10 3056r/min,3000r/min。10。,6.95r/s2。FFT。4 ,。,100,、。,,2414:::(1) 。,,、、,、、。(2) 。、、,。“”,。,,,,,。。(3) 。。,:、。,,,,,。,。 1 QuLS,ChenYD,LiuX.Discoveringtheholospectrum.J.Noise&VibrationControlWorldwide,1989:58～622 QuLS,ChenYD,LiuX.Theholospectrum——anewmethodforrotorsurveillanceanddiagnosis.J.Me-chanicalSystemandSignalProcessing,1989,3(3):255～2673 , ,.FORTRAN().:.19904 ,..,1996,16(2):13～175 ,..,1998,32(7):94～98: ,19311,、。、、。。1976,、。、12,34,,、12。1991、;。、100()。242 、 18AbstractsinEnglishHolospectrumduringthePastDecade:Review&ProspectQuLiangsheng ShiDongfeng(ResearchInstituteofDiagnostics&Cybernetics,XianJiaotongUniversity Xian,710049)Abstract Thispaperaimstoprovideareviewoftheemergent,developmentandachieve-mentofholospectrumforlargerotatingmachineryduringthepastdecade.Adetailedoverviewofitsapplicationstofaultdiagnosis,conditionmonitoringinrun-upandshutdownstagesaswellasnon-stationaryvibrationispresented.Accordingtothepresentstatusofthefaultdiagnosisforrotatingmachinery,wepointthedirectionofthedevelopmentofholospec-trum.Keywords holospectrum rotatingmachinery faultdiagnosis conditionmonitoringGalculationofNaturalFrequenciesoftheStatorwithTeethofaTavellingWaveTypeUltrasonicMotorZhaoXiangdon ZhaoChunsheng(InstituteofVibrationEngineeringResearch,NanjingUniversityofAero&Astronotics Nanjing,210016)Abstract Thispaperpresentsanewmethodtocalculatethenaturalfrequenciesofatravel-lingwavetypeultrasonicmotorstatorwithteeth.Afteranalyzingthefeatureofabendingbeamwithteethandtheaffectionoftherotaryinertiaoftheteethtoitsnaturalfrequencies,avibrationequationisdeduced.Calculatedresultsmatchuptothetestedonesfairlywell.Thismethodcanbeusedtoanalyzethesensibilityofthefrequenciestovariousparametersandtoguidetheoptimaldesignofthestator.Keywords ultrasonicmotor beamwithteeth vibration naturalfrequencies303No.4AbstractinEnglish