阶次分析---很好的教材

整理文档很辛苦,赏杯茶钱您下走!

免费阅读已结束,点击下载阅读编辑剩下 ...

阅读已结束,您可以下载文档离线阅读编辑

资源描述

BA7679-16,1CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,2??,,CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,3/lll(whirling,..)DiagnosticslllllCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,4l(RPM)ll:––––CAN-BUS–...CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,5–CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,6a)b)Samplesanalysedc)Samplesanalysedfmaxfs=2,56×fmax:fs=8×ffundamentalFrequency4Orders321(periods)TimeTime810110/1CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,7----Lowpassfilteringtimefreq.timefreq.timefreq.freq.timefreq.2fsfsf’sfs2fsf’sf’s00000CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,8----TachoSignalSignalTrackedsignaltimetimetimerevolutionsd1d2d3d1d2d3910264CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,9“Time”:When?[Rev]Orderspectrum:?[]Time:When?[sec]Frequencyspectrum:?[]OrderTrackingAnalysis[Rev][][][sec][Hz][]CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,10FFT-TrcQuaStat1chVib.plsCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,11:ll–:lCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,12l/:––––CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,13/:l,A,B,Cll1/nlll(FFT)llRPMversustime(RPMprofile)VersusRPM,time,ProcessParameters...CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,14–/:&A3D3DOverallALevel1storderA-weighted3rdorderA-weighted1storderXYZ3rdorderXYZCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,15–/=RPMCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,16versusRPM3950RPM/CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,17/versusRPMdelta3.orderTotal1.order2.orderCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,18/versusRPM6.order1.orderCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,19/a)?:6006000RPM8:600RPM(ffundamental=10Hz)b)?:6000RPM(ffundamental=100Hz)l8⇒=800Hzl5FFT⇒Δf=2HzlΔf=2Hz⇒Trecord=0.5sec6006000RPM0100800HzΔf=2Hz=800Hz400linefrequencyspectra(FFT)400CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,20/versusRPM3980RPMCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,21/versusRPM3.orderTotal1.order2.orderCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,22/a)?:6006000RPM10b)?l6000RPM(100Hz)10⇒=1000Hzl10⇒Δorder=0.1⇒Trecord=10i.e.Trecord=600RPM(10Hz)1Trecord=6000RPM(100Hz)0.16006000RPM01Δorder=0.1=10100(FFT)2345678910CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,23/f=50HzRPMOrderNo300024001800120060012345678910f=100Hzf=150Hz880491CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,24–/i.e.::lll():llFFT/i.e.::lll:lSliceFrqN.plsCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,25Vold-KalmanlVold-Kalman–––STSF–,RPM–Vold-KalmanCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,26STFTl(TimeCaptureAnalyzer)ll(STFT)–:139101.order3.order9.order10.orderCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,27RPMl()lRPM–30%,,5%–15,0%,lRPM––l––,.STFT–RPMMeasuredRPMRPMcurvefitCreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,28Vold-Kalmanl–:,,,,nyquistOrderwaveformof1.and3.order3.order1.orderMagnitudeof4selectedorders1.order:9.order3.order10.orderlOrderwaveform–CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinterBA7679-16,29Vold-Kalmanll–ll–CreatePDFwithGO2PDFforfree,ifyouwishtoremovethisline,clickheretobuyVirtualPDFPrinter

1 / 29
下载文档,编辑使用

©2015-2020 m.777doc.com 三七文档.

备案号:鲁ICP备2024069028号-1 客服联系 QQ:2149211541

×
保存成功