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Shock and Vibration
Volume 2017, Article ID 4647868, 17 pages
Research Article

Experimental Estimation of Journal Bearing Stiffness for Damage Detection in Large Hydrogenerators

1Center for Engineering and Exact Sciences, Western Paraná State University (UNIOESTE), Foz do Iguaçu, PR, Brazil
2Numerical Methods for Engineering Graduate Program, Federal University of Paraná (UFPR), Curitiba, PR, Brazil

Correspondence should be addressed to Geraldo Carvalho Brito Jr.; moc.liamg@rjotirbcg

Received 28 December 2016; Revised 10 May 2017; Accepted 16 May 2017; Published 27 June 2017

Academic Editor: Marco Belloli

Copyright © 2017 Geraldo Carvalho Brito Jr. et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. F. A. Hamill, “Sayano Shushenskaya accident: presenting a possible direct cause,” International Water Power Dam Construction, pp. 30–36, 2010. View at Google Scholar
  2. L. A. Vladislavlev, Vibration of Hydro Units in Hydroelectric Power Plants, Amerind Publishing Company, New Delhi, India, 1979.
  3. R. B. Randall, Vibration-Based Condition Monitoring: Industrial, Aerospace and Automotive Applications, John Wiley & Sons, 2011.
  4. Y. Wu, S. Li, S. Liu, H.-S. Dou, and Z. Qian, Vibration of hydraulic machinery, Springer, Dordrecht, Netherlands, 2013.
  5. C. R. Farrar and K. Worden, “An introduction to structural health monitoring,” Philosophical Transactions of the Royal Society A, vol. 365, no. 1851, pp. 303–315, 2007. View at Publisher · View at Google Scholar · View at Scopus
  6. G. C. Brito Jr., “Application of simplified statistical models in hydro generating units health monitoring,” in Damage Prognosis: for Aerospace, Civil and Mechanical Systems, pp. 451–470, John Wiley & Sons, Hoboken, NJ, USA, 2005. View at Google Scholar
  7. R. Cardinali, R. Nordmann, and A. Sperber, “Dynamic simulation of non-linear models of hydroelectric machinery,” Mechanical Systems and Signal Processing, vol. 7, no. 1, pp. 29–44, 1993. View at Publisher · View at Google Scholar · View at Scopus
  8. A. A. Cavalini Jr., F. A. Lara-Molina, A. G. S. Dourado, and V. Steffen Jr., “Experimental uncertainty analysis of a flexible rotor supported by fluid film bearings,” in Proceedings of the XVII International Symposium on Dynamic Problems of Mechanis, vol. 2015, Natal, Brazil.
  9. A. A. Cavalini Jr., A. G. S. Dourado, F. A. Lara-Molina, and V. Steffen Jr., “Uncertainty analysis of a tilting-pad journal bearing using fuzzy logic techniques,” Journal of Vibration and Acoustics, vol. 138, no. 6, Article ID 061016, pp. 1–13, 2016. View at Publisher · View at Google Scholar · View at Scopus
  10. Itaipu Binacional, Projeto hidrelétrico de Itaipu: Características de Engenharia (Itaipu Hydroelectric Project: Engineering Characteristics), Tab Marketing Editorial, Porto Alegre, Brazil, 2009.
  11. R. Tiwari, A. W. Lees, and M. I. Friswell, “Identification of dynamic bearing parameters—a review,” The Shock and Vibration Digest, vol. 36, no. 2, pp. 99–124, 2004. View at Publisher · View at Google Scholar · View at Scopus
  12. T. Someya, Journal-Bearing Databook, Springer, Berlin, Germany, 1989. View at Publisher · View at Google Scholar
  13. T. Dimond, A. Younan, and P. Allaire, “A review of tilting pad bearing theory,” International Journal of Rotating Machinery, vol. 2011, Article ID 908469, 23 pages, 2011. View at Publisher · View at Google Scholar · View at Scopus
  14. T. W. Dimond, P. N. Sheth, P. E. Allaire, and M. He, “Identification methods and test results for tilting pad and fixed geometry journal bearing dynamic coefficients—a review,” Shock and Vibration, vol. 16, no. 1, pp. 13–43, 2009. View at Publisher · View at Google Scholar · View at Scopus
  15. R. K. Gustavsson, M. L. Lundström, and J.-O. Aidanpää, “Determination of journal bearing stiffness and damping at hydropower generators using strain gauges,” in Proceedings of the PWR2005: ASME Power, Chicago, Ill, USA, April 2005. View at Scopus
  16. M. Nässelqvist, R. K. Gustavsson, and J.-O. Aidanpää, “Bearing load measurement in a hydropower unit using strain gauges installed inside a pivot pin,” Experimental Mechanics, vol. 52, no. 4, pp. 361–369, 2012. View at Publisher · View at Google Scholar · View at Scopus
  17. M. Nässelqvist, R. K. Gustavsson, and J.-O. Aidanpää, “A methodology for protective vibration monitoring of hydropower units based on the mechanical properties,” Journal of Dynamic Systems, Measurement, and Control, vol. 135, no. 4, Article ID 041007, pp. 1–8, 2013. View at Publisher · View at Google Scholar · View at Scopus
  18. X. Young, L. Zhaohui, and L. Xide, “Dynamic model for hydro-turbine generator units based on a database method for guide bearings,” Shock and Vibration, vol. 20, no. 3, Article ID 120758, pp. 411–421, 2013. View at Publisher · View at Google Scholar
  19. Itaipu, Medições especiais nos mancais da unidade 14 (Special measurements in unity 14 bearings), 1987.
  20. M. Nässelqvist, R. K. Gustavsson, and J. O. Aidanpää, “Resonance problems in vertical hydropower unit after turbine upgrade,” in Proceedings of the JAHR - 24th Symposium on Hydraulic Machinery and Systems, Foz do Iguaçu, Brazil, 2008.
  21. R. Cardinali, Modelagem e aplicações em diagnose de máquinas rotativas verticais (Modeling and diagnostics applications in vertical rotating machines) [Doctoral thesis], Campinas State University, Campinas, Brazil, 1992.
  22. J. G. Fox and J. Mahanty, “The effective mass of an oscillating spring,” American Journal of Physics, vol. 38, no. 1, pp. 98–100, 1970. View at Publisher · View at Google Scholar · View at Scopus
  23. J. C. Luneno, J. O. Aidanpää, and R. Gustavsson, “Model based analysis of coupled vibrations due to the combi-bearing in vertical hydroturbogenerator rotors,” Journal of Vibration and Acoustics, vol. 133, no. 6, Article ID 061012, pp. 1–7, 2011. View at Publisher · View at Google Scholar · View at Scopus
  24. G. Genta, Dynamic of rotating systems, Springer, 2005.
  25. National Electrical Manufacturers Association, Installation of Vertical Hydraulic-Turbine-Driven Generators And Reversible Generators/Motors for Pumped Storage Installations—MG 5.2, NEMA, New York, NY, USA, 1972.
  26. A. Muszynska, Rotordynamics, Boca Raton: Taylor Francis Group, 2005.
  27. N. Littrell, “Understating and mitigating shaft runout,” Orbit, vol. 3, pp. 5–17, 2005. View at Google Scholar