Vibration Monitoring &Vibration Monitoring &AnalysisAnalysis
What is Vibration ?It is motion of mechanical parts back andforth from its position of rest /neutralposition.Vibration Mon...
Vibration MonitoringVibration MonitoringWhat causesVibration ?Induced Force&Freedom for Movement
Vibration MonitoringVibration MonitoringHarmful Effects of Excess vibration• Increased load on BRGs: Reduced BRG Life• Hig...
Vibration MonitoringVibration MonitoringHarmful Effects of Excess vibration• Decreased Equipment efficiency.• Reduced Outp...
Vibration MonitoringVibration MonitoringProblem Identifications• Unbalance• Misalignment• Mechanical Looseness• Antifricti...
Vibration MonitoringVibration MonitoringProblem Identifications• Belt Defects• Impeller / Blade Defects• Bent Shaft• Elect...
Vibration MonitoringVibration MonitoringFundamental Realities• All Machines vibrate.• An increase in vibration level is a ...
VIBRATION FUNDAMENTALSTIMEPeriod(T)(1 complete cycle)Neutral PositionUpper LimitLower Limit90180270
Characteristics of VibrationCharacteristics of Vibration• Vibration characteristics areAmplitudeFrequency Hz or CPMPhase A...
Parameter SelectionParameter Selection• Frequency sensitivityDisplacement <600CPMVelocity 600-60,000CPMAcceleration >60,00...
Frequency sensitivity
Vibration MonitoringVibration MonitoringDisplacementVelocityAcceleration
FFTFAST FOURIER TRANSFORM.• THE PROCESS OF TRANSFORMING TIMEDOMAIN SIGNAL TO FREQUENCYDOMAIN.• THE TIME DOMAIN SIGNAL MUST...
Indian Institute For Production ManagementFFT SPECTRUM ANALYSISA method of viewing the vibration signal in a way that is m...
Time Domain - overall data is the sum ofall exciting and reacting forcesImbalanceRollingElementBearingCouplingchatterGearm...
Spectrum AnalysisEnables precise evaluation ofmachinery condition and prediction
Fmax, LINES, AVERAGES.• Fmax REPRESENTS THE MAXIMUMFREQUENCY RANGE IN CPM OR HZ TO BESCANNED BY THE INSTRUMENT.• Fmax SHOU...
GUIDELINES FOR SETTING Fmax.• FOR MACHINES HAVING ANTI-FRICTION BEARINGS:- Fmax = 60 xRPM• FOR MACHINES HAVING SLEEVEBEARI...
LINES OF RESOLUTION• THE RESOLUTION IS THE NUMBER OF LINESOR CELLS WHICH ARE USED TO CALCULATEAND DISPLAY THE FREQUENCY SP...
FREQUENCYRESOLUTION Bandwidth =FF maxmaxtotal lines of resolutiontotal lines of resolutiontotal lines of resolutiontotal l...
• FFT Calculation Time = Time to calculateFFT from Time Waveform [assuming nooverlap processing]Spectrum Data CollectionTi...
FFT SPECTRUM
OVERALLOVERALLVIBRATIONVIBRATIONTotal summation of all the vibration,with noregard to any particular frequency.
OVERALL VIBRATIONOverall vibration is the total vibration energy measuredwithin a frequency range. Measuring the “overall”...
Overall VibrationOverall VibrationTotal summation of all the vibration,with noregard to any particular frequency.OA =OA=Ov...
NOTE: Don’t be concerned about the math,the condition monitoring instrumentcalculates the value. What’s important torememb...
What is Phase?What is Phase?• The position of a vibrating part at a giveninstant with reference to a fixed point oranother...
PhasePhase is a measurement, not a processingmethod. Phase measures the angulardifference between a known mark on a rotati...
Vibration PhaseVibration Phase
AdditionalIllustration onPhase
PHASE AN ILLUSTRATIONPHASE AN ILLUSTRATION30 Micron10 degrees32 Micron10 degreesShaft centre line moves up and down in a p...
PHASE AN ILLUSTRATIONPHASE AN ILLUSTRATION30 Micron10 degrees32 Micron190 degreesShaft center line moves up and down in a ...
MACHINE TRAIN MISALIGNMENTMACHINE TRAIN MISALIGNMENTNote: All phase readings corrected for pickup directionTURBINE G/B HP ...
Comparing Overall LevelsComparing Overall LevelsAcross Mounting InterfacesAcross Mounting Interfaces
Phase applicationPhase applicationABCA 5 Microns, 10 degreesB 7 Microns, 12 degreesC 25 Microns, 175 degreesBolt at C is l...
Vibration Analysis ofCommon ProblemsCommon Problems
Vibration AnalysisUnbalance• Amplitude proportional to the amount ofunbalance• Vibration high normally in radial direction...
Vibration AnalysisUnbalance• Horizontal and vertical 1* RPM amplitudeshould be nearly same, although it alsodepends on sys...
UNBALANCE• Operating conditions such as load, flowcondition and temperature effectunbalance– Balance under normal operatin...
Typical Spectrum ForUnbalance
MISALIGNMENT• BIGGEST PROBLEM INITIALLY• Operating temperature can affectalignment– Machines aligned cold can go out whenw...
MISALIGNMENT• Forces shared by driver and driven (notlocalized)• Level of misalignment severity isdetermined by the machin...
Three Types of Misalignment• Combination (most common)• Angular• Parallel or Offset
General Characteristics OfMisalignment• Radial vibration is highly directional• 1X, 2x, and 3x running speeddepending on t...
Typical Spectrum forMisalignment
Vibration AnalysisMisalignmentAngular Misalignment• High axial vibration( Greater than 50% of the radial vibration)• 1* , ...
Angular Misalignment• Produces predominant 1x rpm component• Marked by 180 degree phase shift across thecoupling in the ax...
Vibration AnalysisMisalignmentOff-Set Misalignment• High Axial vibration. Also shows high radialvibrations.• 1*, 2*, 3* RP...
Parallel Or Offset Misalignment• Produces a predominant 2x rpm peak in thespectrum• Marked by 180 degree phase shift acros...
Typical Spectrum forMisalignment
Axial Phase ShowingMisalignment
Other Types Of Misalignment
Vibration AnalysisMechanical LoosenessCaused by structured looseness / weakness ofmachine feet, base plate or foundation; ...
Vibration AnalysisMechanical LoosenessCaused by structured looseness / weakness ofmachine feet, base plate or foundation; ...
Looseness• Looseness produces2X RPM Freq.
Vibration AnalysisMechanical LoosenessCaused by looseness in bearing housing bolts andcracks in the frame structure.• Radi...
LOOSENESS• Not an exciting force• Allows exciting frequencies alreadypresent to exhibit much higheramplitudes• Loss or red...
Two Types Of Looseness• Looseness of Rotating Components– Loose Rotors– Bearings Loose on the Shaft or in Housing– Excessi...
Looseness Of RotatingSystem• Rattling condition cause impacts due toexcessive clearance in a rolling elementor sleeve bear...
Typical Spectrum for Loosenessof Rotating System
Looseness Of Support System• FFT readings show 1x rpm, 2x rpm, and 3xrpm components• Structural looseness / weakness will ...
Looseness Of Support System
Modern TrendinVibration Technology
Condition MonitoringSystem IntegrationSOFTWARE DCSCMMSNETWORKPdM TECHNOLOGIESON-LINEANALYSISSURVEILLANCEON - LINEPERIODICW...
Overall Data Acquistiontime waveformTHE DCSMONITORDCS OUTPUT4-20mA
current valueOverall Data Trends-this is what the DCS recordslo alarmhi alarmchanges over timeThe limitation is that it do...
Vibration Analysistime waveformtransducerVibration SpectrumData CollectorProtection Monitorand / or
Band Alarms, associate with each rotating elementfrequency bandshi alarmlo alarm
Band Trending, the new way forwardlo alarmhi alarmchanges over timeTrend and alarm the:•Machine unbalance•Alignment•Gear m...
Emonitor Odyssey: spectrum band alarming though itsdiagnostic tools feature for both On & Off line gives advancedmachinery...
EMONITOR Odyssey: Frequency BandTrendsFrequency Trend of Single Measurement
DIAGNOSTICS - the advantage of frequency band trending• Root cause analysis is a complex machinespecific exercise consider...
DCS Limitations - Summary• We have shown that putting total belief in the DCSvibration trend is highly risky• Machinery fa...
ESHAPE: Modal analysis using phase foradvanced diagnosis and better understanding ofsystem response
On line Vibration and othermonitors• Innovative, fully-digital design• Exceeds API 670 specification• Widely-used system• ...
TYPICAL APPLICATIONTACHOTACHOMONITORVIBRATIONIRDVIBRATIONMONITORIRDTACHO TACHO TACHO TACHOVIBRATIONMONITORCH.1 CH.2IRDVIBR...
FS HP LP GEN EXTURBINESUPERVISORYSTATOR ENDWINDINGCWPBFPBFP IDFDPAAUXILIARIESENGINEERINGOPERATIONSDCS ODYSSEYSERVERPOWER P...
ENGINEERINGDCS ODYSSEYCLIENT SERVERGATEWAYTO CMMSANURAKSHANVIBRATIONANALYSERPlant Integration with LAN or WANFS HP LP GEN ...
NETWORKING THE INFORATION - LAN/ WAN e.g.NOIDA HQCM CELLVINDHYACHALRIHANDTALCHERUNCHAHARKAYAMKULAMPLANTOPERATIONSGATEWAYTO...
Using PlantLinkVibration Trend PlotDigital Picture of PlantHyperlink toequipmentHierarchyAutomatic E-Mail notification onE...
Information however you want it !
X-Window Screen Captures
Scenario of Instruments &Sensors & Probes• Velocity sensors are made in India• Accelerometers range over 150 types– standa...
Vibration DatacollectorsMany vendorsSelect on ‘Fitnessfor Purpose’Intrinsic SafetyDust & Moisture proofDiagnostic Capability
Vibration
Vibration
Vibration
Vibration
Vibration
Vibration
Vibration
Vibration
Vibration
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  1. 1. Vibration Monitoring &Vibration Monitoring &AnalysisAnalysis
  2. 2. What is Vibration ?It is motion of mechanical parts back andforth from its position of rest /neutralposition.Vibration MonitoringVibration Monitoring
  3. 3. Vibration MonitoringVibration MonitoringWhat causesVibration ?Induced Force&Freedom for Movement
  4. 4. Vibration MonitoringVibration MonitoringHarmful Effects of Excess vibration• Increased load on BRGs: Reduced BRG Life• Higher Forces on Mountings:Foundation Loosening and Damage ofSupport Structure• Increased Stresses of M/c : Risk of fatiguecomponents
  5. 5. Vibration MonitoringVibration MonitoringHarmful Effects of Excess vibration• Decreased Equipment efficiency.• Reduced Output Quality.• Increased Maintenance Cost due tomore Component Failures andUnplanned Operations• Unsafe Operating Environment
  6. 6. Vibration MonitoringVibration MonitoringProblem Identifications• Unbalance• Misalignment• Mechanical Looseness• Antifriction / Sleeve Bearing Defects• Gear Defects
  7. 7. Vibration MonitoringVibration MonitoringProblem Identifications• Belt Defects• Impeller / Blade Defects• Bent Shaft• Electrical Problems• Resonance
  8. 8. Vibration MonitoringVibration MonitoringFundamental Realities• All Machines vibrate.• An increase in vibration level is a sign oftrouble & amplitude of Vibration depends onthe extent of defect in the machinerycomponents• Each trouble will create vibration with differentcharacteristics
  9. 9. VIBRATION FUNDAMENTALSTIMEPeriod(T)(1 complete cycle)Neutral PositionUpper LimitLower Limit90180270
  10. 10. Characteristics of VibrationCharacteristics of Vibration• Vibration characteristics areAmplitudeFrequency Hz or CPMPhase Angle or clock faceDisplacementVelocityAcceleration
  11. 11. Parameter SelectionParameter Selection• Frequency sensitivityDisplacement <600CPMVelocity 600-60,000CPMAcceleration >60,000CPMSpikeEnergy/SEEUltrasonic range
  12. 12. Frequency sensitivity
  13. 13. Vibration MonitoringVibration MonitoringDisplacementVelocityAcceleration
  14. 14. FFTFAST FOURIER TRANSFORM.• THE PROCESS OF TRANSFORMING TIMEDOMAIN SIGNAL TO FREQUENCYDOMAIN.• THE TIME DOMAIN SIGNAL MUSTFIRST BE SAMPLED ANDDIGITIZED.
  15. 15. Indian Institute For Production ManagementFFT SPECTRUM ANALYSISA method of viewing the vibration signal in a way that is more useful for analysisis to apply a Fast Fourier Transformation (FFT). In non-mathematical terms, thismeans that the signal is broken down into specific amplitudes at variouscomponent frequencies.
  16. 16. Time Domain - overall data is the sum ofall exciting and reacting forcesImbalanceRollingElementBearingCouplingchatterGearmeshTimeResultant ComplexWaveform
  17. 17. Spectrum AnalysisEnables precise evaluation ofmachinery condition and prediction
  18. 18. Fmax, LINES, AVERAGES.• Fmax REPRESENTS THE MAXIMUMFREQUENCY RANGE IN CPM OR HZ TO BESCANNED BY THE INSTRUMENT.• Fmax SHOULD NOT BE SET TOO HIGH SOTHAT THE RESOLUTION AND ACCURACYSUFFERS OR IT SHOULD NOT BE TOO LOWSO THAT WE MISS SOME IMPORTANT HIGHFREQUENCIES.
  19. 19. GUIDELINES FOR SETTING Fmax.• FOR MACHINES HAVING ANTI-FRICTION BEARINGS:- Fmax = 60 xRPM• FOR MACHINES HAVING SLEEVEBEARINGS:- Fmax = 20 x RPM• FOR GEAR BOXES:- Fmax = 3.25 x GMF
  20. 20. LINES OF RESOLUTION• THE RESOLUTION IS THE NUMBER OF LINESOR CELLS WHICH ARE USED TO CALCULATEAND DISPLAY THE FREQUENCY SPECTRUM.• THE BANDWIDTH CAN BE CALCULATED BYDIVIDING Fmax BY THE LINES OF RESOLUTION.• THE GREATER THE NUMBER OF LINES , THEBETTER IS THE ACCURACY.
  21. 21. FREQUENCYRESOLUTION Bandwidth =FF maxmaxtotal lines of resolutiontotal lines of resolutiontotal lines of resolutiontotal lines of resolutionAmplitudeFrequency FFmaxmaxlines or bins or cellslines or bins or cellsof resolutionof resolution
  22. 22. • FFT Calculation Time = Time to calculateFFT from Time Waveform [assuming nooverlap processing]Spectrum Data CollectionTimeFFT Calculation Time =FFT Calculation Time =(60) ( #FFT Lines) (#Averages)(60) ( #FFT Lines) (#Averages)Frequency SpanFrequency SpanWhere: #FFT = Number of FFT Lines or Bins in Spectrum# Averages = Number of AveragesFrequency Span measured in CPM
  23. 23. FFT SPECTRUM
  24. 24. OVERALLOVERALLVIBRATIONVIBRATIONTotal summation of all the vibration,with noregard to any particular frequency.
  25. 25. OVERALL VIBRATIONOverall vibration is the total vibration energy measuredwithin a frequency range. Measuring the “overall”vibration of a machine or component, a rotor in relationto a machine, or the structure of a machine, andcomparing the overall measurement to its normal value(norm) indicates the current health of the machine. Ahigher than normal overall vibration reading indicatesthat “something” is causing the machine or componentto vibrate more.
  26. 26. Overall VibrationOverall VibrationTotal summation of all the vibration,with noregard to any particular frequency.OA =OA=Overall level of Vibration Spectrum , Ai = Amplitude of each FFT linen = No. of FFT Lines of resolution , NBF= Noise Bandwidth for Window chosenA1 + A2 + ………………………+AnA1 + A2 + ………………………+An22 22 22NNBFBF
  27. 27. NOTE: Don’t be concerned about the math,the condition monitoring instrumentcalculates the value. What’s important toremember is when comparing overallvibration signals, it is imperative that bothsignals be measured on the same frequencyrange and with the same scale factors.
  28. 28. What is Phase?What is Phase?• The position of a vibrating part at a giveninstant with reference to a fixed point oranother vibrating part.• The part of a vibration cycle through whichone part or object has moved relative toanother part.The unit of phase is degree where onecomplete cycle of vibration is 360 degrees.
  29. 29. PhasePhase is a measurement, not a processingmethod. Phase measures the angulardifference between a known mark on a rotatingshaft and the shaft’s vibration signal. Thisrelationship provides valuable information onvibration amplitude levels,shaft orbit, and shaftposition and is very useful for balancing andanalysis purposes.
  30. 30. Vibration PhaseVibration Phase
  31. 31. AdditionalIllustration onPhase
  32. 32. PHASE AN ILLUSTRATIONPHASE AN ILLUSTRATION30 Micron10 degrees32 Micron10 degreesShaft centre line moves up and down in a planer fashion
  33. 33. PHASE AN ILLUSTRATIONPHASE AN ILLUSTRATION30 Micron10 degrees32 Micron190 degreesShaft center line moves up and down in a rocking fashion
  34. 34. MACHINE TRAIN MISALIGNMENTMACHINE TRAIN MISALIGNMENTNote: All phase readings corrected for pickup directionTURBINE G/B HP COMP LP COMPAXIAL PHASE(degrees)0 5 15 18 198 21510 12 22 24 210 22012 10 20 22 208 2188 6 16 20 200 210
  35. 35. Comparing Overall LevelsComparing Overall LevelsAcross Mounting InterfacesAcross Mounting Interfaces
  36. 36. Phase applicationPhase applicationABCA 5 Microns, 10 degreesB 7 Microns, 12 degreesC 25 Microns, 175 degreesBolt at C is loose
  37. 37. Vibration Analysis ofCommon ProblemsCommon Problems
  38. 38. Vibration AnalysisUnbalance• Amplitude proportional to the amount ofunbalance• Vibration high normally in radial direction(may be also in axial direction incase ofoverhung and flexible rotors ).• 1* RPM vibration is greater than 80%(normally) of the overall reading.
  39. 39. Vibration AnalysisUnbalance• Horizontal and vertical 1* RPM amplitudeshould be nearly same, although it alsodepends on system rigidity on theparticular direction.• Other frequency peaks may be less than5% of the 1*RPM amplitude• Phase shift of 90 deg. When sensormoves from horizontal to vertical.
  40. 40. UNBALANCE• Operating conditions such as load, flowcondition and temperature effectunbalance– Balance under normal operating conditions• Changes in track and pitch angle of fanblades can result in “AerodynamicUnbalance”
  41. 41. Typical Spectrum ForUnbalance
  42. 42. MISALIGNMENT• BIGGEST PROBLEM INITIALLY• Operating temperature can affectalignment– Machines aligned cold can go out whenwarm• Bases or foundations can settle• Grouting can shrink or deteriorate• Increases energy demands
  43. 43. MISALIGNMENT• Forces shared by driver and driven (notlocalized)• Level of misalignment severity isdetermined by the machines ability towithstand the misalignment– If coupling is stronger than bearing thebearing can fail with little damage to thecoupling
  44. 44. Three Types of Misalignment• Combination (most common)• Angular• Parallel or Offset
  45. 45. General Characteristics OfMisalignment• Radial vibration is highly directional• 1X, 2x, and 3x running speeddepending on type and extent ofmisalignment– Angular 1x rpm axial– Parallel 2x rpm radial (H & V)– Combination 1,2,3x rpm radial andaxial
  46. 46. Typical Spectrum forMisalignment
  47. 47. Vibration AnalysisMisalignmentAngular Misalignment• High axial vibration( Greater than 50% of the radial vibration)• 1* , 2*, 3* RPM normally high.• 180 deg. Out of phase across the coupling
  48. 48. Angular Misalignment• Produces predominant 1x rpm component• Marked by 180 degree phase shift across thecoupling in the axial direction
  49. 49. Vibration AnalysisMisalignmentOff-Set Misalignment• High Axial vibration. Also shows high radialvibrations.• 1*, 2*, 3* RPM high. 2* often larger than 1*• In case of severe misalignment, much highharmonics (4* - 8*) or even a whole series ofhigh frequency harmonics will be generated.• 180 deg. Out of phase across coupling
  50. 50. Parallel Or Offset Misalignment• Produces a predominant 2x rpm peak in thespectrum• Marked by 180 degree phase shift across thecoupling in the radial direction.
  51. 51. Typical Spectrum forMisalignment
  52. 52. Axial Phase ShowingMisalignment
  53. 53. Other Types Of Misalignment
  54. 54. Vibration AnalysisMechanical LoosenessCaused by structured looseness / weakness ofmachine feet, base plate or foundation; also bydeteriorated grouting, loose base bolts anddistortion of the frame or base.• Radial vibration high• 2* RPM & 1* RPM dominant• 180 deg. Phase differences between matingsurfaces which have looseness betweenthem.
  55. 55. Vibration AnalysisMechanical LoosenessCaused by structured looseness / weakness ofmachine feet, base plate or foundation; also bydeteriorated grouting, loose base bolts anddistortion of the frame or base.• Radial vibration high• 2* RPM & 1* RPM dominant• 180 deg. Phase differences between matingsurfaces which have looseness betweenthem.
  56. 56. Looseness• Looseness produces2X RPM Freq.
  57. 57. Vibration AnalysisMechanical LoosenessCaused by looseness in bearing housing bolts andcracks in the frame structure.• Radial vibration high• 2* RPM normally dominant. 0.5*, 1* and 3* RPMmay also be present• Substantial Phase difference between matingsurfaces which have looseness between them
  58. 58. LOOSENESS• Not an exciting force• Allows exciting frequencies alreadypresent to exhibit much higheramplitudes• Loss or reduction in normal stiffness• Caused by:– loose mounting bolts– deterioration of grouting– cracked welds
  59. 59. Two Types Of Looseness• Looseness of Rotating Components– Loose Rotors– Bearings Loose on the Shaft or in Housing– Excessive Sleeve Bearing Clearances• Looseness of Support System– Loose Mounting Bolts– Grouting Deterioration– Cracks– Poor Support– Frame Distortion
  60. 60. Looseness Of RotatingSystem• Rattling condition cause impacts due toexcessive clearance in a rolling elementor sleeve bearing• Impacts cause multiple running speedharmonics to appear in the spectra• Identified by:– multiple harmonics– unstable phase– highly directional radial vibration
  61. 61. Typical Spectrum for Loosenessof Rotating System
  62. 62. Looseness Of Support System• FFT readings show 1x rpm, 2x rpm, and 3xrpm components• Structural looseness / weakness will causehigh 1xrpm peak in FFT• Identified by– Highly directional radial vibration– Bouncing– Taking comparative phase readings acrossinterfaces and look for amplitude variation– Typically loose in vertical direction
  63. 63. Looseness Of Support System
  64. 64. Modern TrendinVibration Technology
  65. 65. Condition MonitoringSystem IntegrationSOFTWARE DCSCMMSNETWORKPdM TECHNOLOGIESON-LINEANALYSISSURVEILLANCEON - LINEPERIODICWALKAROUNDOFF- LINECENTRALISEDPROTECTIONDISTRIBUTEDPROTECTIONCONTINUOUSPROTECTION
  66. 66. Overall Data Acquistiontime waveformTHE DCSMONITORDCS OUTPUT4-20mA
  67. 67. current valueOverall Data Trends-this is what the DCS recordslo alarmhi alarmchanges over timeThe limitation is that it does not adequately reflect changesat higher frequencies which can increase by 100% but only add1% to the overall energy level
  68. 68. Vibration Analysistime waveformtransducerVibration SpectrumData CollectorProtection Monitorand / or
  69. 69. Band Alarms, associate with each rotating elementfrequency bandshi alarmlo alarm
  70. 70. Band Trending, the new way forwardlo alarmhi alarmchanges over timeTrend and alarm the:•Machine unbalance•Alignment•Gear mesh•Bearings etc
  71. 71. Emonitor Odyssey: spectrum band alarming though itsdiagnostic tools feature for both On & Off line gives advancedmachinery analysis and reduces False Alarms
  72. 72. EMONITOR Odyssey: Frequency BandTrendsFrequency Trend of Single Measurement
  73. 73. DIAGNOSTICS - the advantage of frequency band trending• Root cause analysis is a complex machinespecific exercise considering all eventualities• Expert systems are a one off diagnosis and donot show a trend• Frequency band trending is specific to root causeanalysis• Band alarming also indicates vibration signalsthat are outside the established norms• Trending alignment, unbalance, gear meshingand bearing condition condition is more specific• A complex issue simplified without the need ofspecialist customisation and regular updates
  74. 74. DCS Limitations - Summary• We have shown that putting total belief in the DCSvibration trend is highly risky• Machinery failures still happen with on-line vibrationmonitoring with 4-20mA data to the DCS. Most causesare due to higher frequency signals swamped by theoverall levels.• Advanced machinery protection through Frequency BandTrending and Alarming - more specific than an Expertsystem.• The latest S/w based Analysers incorporates NarrowBand Alarming. They offer machinery protection andnarrow band alarming.• A lower cost solution is periodic manual Data Collection.
  75. 75. ESHAPE: Modal analysis using phase foradvanced diagnosis and better understanding ofsystem response
  76. 76. On line Vibration and othermonitors• Innovative, fully-digital design• Exceeds API 670 specification• Widely-used system• Fully field programmable• Low installation cost• ModBus protocol
  77. 77. TYPICAL APPLICATIONTACHOTACHOMONITORVIBRATIONIRDVIBRATIONMONITORIRDTACHO TACHO TACHO TACHOVIBRATIONMONITORCH.1 CH.2IRDVIBRATIONMONITORIRDCH.1 CH.1CH.2 CH.2CH.1VIBRATIONMONITORIRDMONITORVIBRATIONCH.2 CH.1IRDTACHOTACHO TACHO TACHOCH.2MONITORVIBRATIONCH.1IRDMONITORVIBRATIONIRDCH.1VIBRATIONMONITORVIBRATIONCH.2 CH.1 CH.2 CH.1 CH.1CH.2MONITORIRD IRDHPDRIVERSDRIVERS DRIVERS DRIVERSIPTACHO TACHOMONITORVIBRATIONIRDCH.1CH.2 CH.2VIBRATIONMONITORCH.1 CH.2IRDTACHOVIBRATIONMONITORIRDCH.1CH.2TACHOCH.2 CH.1 CH.2VIBRATIONMONITORIRDDRIVERSDRIVERSLPDRIVERSALT.
  78. 78. FS HP LP GEN EXTURBINESUPERVISORYSTATOR ENDWINDINGCWPBFPBFP IDFDPAAUXILIARIESENGINEERINGOPERATIONSDCS ODYSSEYSERVERPOWER PLANT INTEGRATIONGATEWAYTO CMMSVIBRATIONANALYSERDATALOGGER
  79. 79. ENGINEERINGDCS ODYSSEYCLIENT SERVERGATEWAYTO CMMSANURAKSHANVIBRATIONANALYSERPlant Integration with LAN or WANFS HP LP GEN EX FS HP LP GEN EX FS HP LP GEN EXCONTROL ROOM No 1 CONTROL ROOM No 2 CONTROL ROOM No 3TG 1 TG 2 TG 3ETHERNET
  80. 80. NETWORKING THE INFORATION - LAN/ WAN e.g.NOIDA HQCM CELLVINDHYACHALRIHANDTALCHERUNCHAHARKAYAMKULAMPLANTOPERATIONSGATEWAYTO CMMSANURAKSHAN
  81. 81. Using PlantLinkVibration Trend PlotDigital Picture of PlantHyperlink toequipmentHierarchyAutomatic E-Mail notification onEquipment Alarm StatusClick on MeasurementLabel to link to plots orother views.
  82. 82. Information however you want it !
  83. 83. X-Window Screen Captures
  84. 84. Scenario of Instruments &Sensors & Probes• Velocity sensors are made in India• Accelerometers range over 150 types– standard– Low frequency– High temperature (Gas Turbines)– Special application• Eddy current probes - comprehensive range• Others available for process measurement
  85. 85. Vibration DatacollectorsMany vendorsSelect on ‘Fitnessfor Purpose’Intrinsic SafetyDust & Moisture proofDiagnostic Capability

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