Root Cause Analysis on a Multistage Centrifugal Pump ... - TurboLab

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274 FEA-Based Fracture Mechanics Approach Double Peak due to Impeller Flexing and Spring-back von Mises Stress (psi) at <strong>Root</strong> of Crack During Impact Event
275 FEA-Based Fracture Mechanics Approach von Mises Stress Distribution (psi) Macro View
Page 1 and 2: 241 Root C
Page 3 and 4: 243 Introduction Barrel Type - 11 s
Page 5 and 6: 245 Background History • Three pu
Page 7 and 8: 247 Background History 2007 Failure
Page 9 and 10: 249 11 th Stage Impeller EMA Testin
Page 11 and 12: 251 Impeller Model Vibration EMA Te
Page 13 and 14: 253 Frequency (Hz) 5000 4000 3000 2
Page 15 and 16: 255 Vibration Monitoring Pump 1B Ty
Page 17 and 18: 257 [mil] [mil] Autospectrum(Signal
Page 19 and 20: 259 Experimental Modal Anal
Page 21 and 22: 261 Operating Deflection Shape •
Page 23 and 24: 263 Operating Deflection Shape Pump
Page 25 and 26: 265 Operating Deflection Shape Pump
Page 27 and 28: 267 Axi-symmetric Model and FEA Bre
Page 29 and 30: 269 Axi-symmetric Model Impeller Lo
Page 31 and 32: 271 Axi-symmetric Model FEA Results
Page 33: 273 FEA-Based Fracture Mechanics Ap
Page 37 and 38: 277 FEA-Based Fracture Mechanics Ap
Page 39 and 40: 279 Conclusions • The root cause
Page 41 and 42: 281

Root Cause Analysis on a Multistage Centrifugal Pump ... - TurboLab

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