Identification of rub and unbalance in 320-MW turbogenerators

International Journal of Rotating Machinery

Volumn 10, Issue 4, 2004, Pages 265-281

  Bachschmid, N ^a   Pennacchi, P ^a   Vania, A ^a   Zanetta, G A ^b   Gregori, L ^b  

^a POLITECNICO DI MILANO   (Italy)

^b CESI   (Italy)

Author keywords

Diagnostics; Identification; Multiple faults; Rotordynamics; Rub; Unbalance

Indexed keywords

FAULT IDENTIFICATIONS; LOW-PRESSURE TURBINES; MODEL-BASED IDENTIFICATION; MULTIPLE-FAULTS; ROTOR-DYNAMICS; RUB; TURBO-GENERATOR UNIT; UNBALANCE;

IDENTIFICATION (CONTROL SYSTEMS); PLASMA DIAGNOSTICS; TURBINES;

TURBOGENERATORS;

EID: 67349156318     PISSN: 1023621X     EISSN: 15423034     Source Type: Journal    
DOI: 10.1080/10236210490447719     Document Type: Article

References (23)

1. Bachschmid, N., Vania, A., Tanzi, E., and Pennacchi, P. 1999. Identification and simulation of faults in rotor systems: experimental results. EURO DINAME 99 - Dynamic Problems in Mechanics and Mechatronics, Wissenschaftszentrum Schloß Reisenburg der Universit ?at Ulm, July 11-16, G?unzburg, Germany, 3-11.
2. Bachschmid, N., and Pennacchi, P. 2000. Model based malfunction identification from bearing measurements. IMechE-7th International Conference on Vibrations in Rotating Machinery, September 12-14, University of Nottingham, UK, 571-580.
3. Bachschmid, N., Pennacchi, P., Tanzi, E., and Vania, A. 2000a. Accuracy of modelling and identification of malfunctions in rotor systems: experimental results. Journal of the Brazilian Society of Mechanical Sciences XXII, 3:423-442.
4. Bachschmid, N., Pennacchi, P., Tanzi, E., and Audebert, S. 2000b. Identification of transverse cracks in rotors systems. ISROMAC-8 Conference, March 26-30, Honolulu, Hawaii, 1065-1072.
5. Bachschmid, N., Pennacchi, P., and Audebert, S. 2000c. Some results in model based transverse crack identification in rotor systems. CONEM2000-Congreso Nacional de Engenharia Mecanica, August 7-11, Natal, Rio Grande do Norte, Brasil.
6. Bachschmid, N., Pennacchi, P., Tanzi, E., and Vania, A. 2000d. Identification of transverse crack position and depth in rotor systems. Meccanica, International Journal of the Italian Association of Theoretical and Applied Mechanics 35(6):563-582.
7. Bachschmid, N., Pennacchi, P., and Vania, A. 2001. Spiral vibrations due to rub: numerical analysis and field experiences. Schwingungen in Rotierenden Maschinen V Vieweg Verlag, Braunschweig/ Weisbaden, Germany, 61-74.
8. Bachschmid, N., Pennacchi, P., and Vania, A. 2002. Identification of multiple faults in rotor systems. Journal of Sound and Vibration 254(2):327-366.
9. Chen, P. Y. P., Feng, N., and Hahn, E. J. 2001. Flexible rotor balancing taking bearing nonlinearity into account. ASME 2001 Design Engineering Technical Conferences and Computers and Information in Engineering Conference, September 9-12, Pittsburgh, Pennsylvania.
10. Edwards, S., Lees, A. W., and Friswell, M. I. 2000. Estimating rotor unbalance from a single run-down, IMechE-7th International Conference on Vibrations in Rotating Machinery, September 12-14, University of Nottingham, UK, 323-334.
11. Gregori, L., Provasi, R., and Zanetta, G. A. 2000. Automated procedure for vibration monitoring of large rotating machinery in power plants. IMechE-7th International Conference on Vibrations in Rotating Machinery, September 12-14, University of Nottingham, UK, 657-666.
12. Gregori, L., and Zanetta, G. A. 2001. Signal forecasting in the vibration monitoring of large rotating machinery in power plants. Survelliance 4 - Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, October 16-18, Compiegne, France, 599-609.
13. Isermann, R. 1995. Fault detection and diagnosis - methods and applications, 2nd International Symposium on Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, October 10-12, Senlis, France.
14. Kellenberger, W. 1980. Spiral vibrations due to the seal rings in turbogenerators. Thermally Induced Interaction between Rotor and Stator. Journal of Mechanical Design 102:177-184.
15. Kreuzinger-Janik, T., and Irretier, H. 2000. Unbalance identification of flexible rotors based on experimental modal analysis. IMechE- 7th International Conference on Vibrations in Rotating Machinery, September 12-14, University of Nottingham, UK, 335-346.
16. Liebich, R. 1998. Rub induced nonlinear vibrations considering the Thermo-elastic effect. IFToMM Fifth International Conference on Rotor Dynamics, Darmstad, Germany.
17. Markert, R., Platz, R., and Siedler, M. 2000. Model based fault identification in rotor systems by least squares fitting. ISROMAC-8 Conference, March 26-30, Honolulu, Hawaii, 901-915.
18. Mayes, I., and Penny, J. E. T. 1999. Model based diagnostics of faults in rotating machines. 12th International Congress on Condition Monitoring and Diagnostic Engineering Management-COMADEM 99 Sunderland, UK.
19. Patton, R. J., Simani, S., Daley, S., and Pike, A. 2001. Identification and model-based fault diagnosis of a gas turbine system. Survelliance 4 - Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, October 16-18, Compiegne, France, 27-48.
20. Platz, R., Markert, R., and Seidler, M. 2000. Validation of online diagnostics of malfunctions in rotor systems. IMechE-7th International Conference on Vibrations in Rotating Machinery, September 12-14, University of Nottingham, UK, 581-590.
21. Platz, R., and Markert, R. 2001. Fault models for on-line identification of malfunctions in rotor systems. Survelliance 4 - Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, October 16-18, Compiegne, France, 435-446.
22. Vania, A., Bachschmid, N., and Pennacchi, P. 2001. Analysis of light rotor-to-stator contacts in large turbine-generator units. Survelliance 4 - Acoustical and Vibratory Surveillance Methods and Diagnostic Techniques, October 16-18, Compiegne, France, 507- 516.
23. White, M. F., and Jecmenica, M. 1999. Fault diagnosis using a fault matrix incorporating fuzzy logic. 12th International Congress on Condition Monitoring and Diagnostic Engineering Management- COMADEM 99 Sunderland, UK.