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Oil whip-induced wear in journal bearings

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Abstract

This paper investigates the effect of oil whirl and oil whip in fluid film radial bearings due to possible metallic contact. The degree of metallic contact and thereby wear and tear between rotating shafts and bearing bushes is assessed by measuring electric currents through the oil film. The current as well as the voltage varied in accordance with the contact ratio between the shaft and bush in the fluid film radial bearing. The gauge signal thus indicates the degree of metallic contact based on the thickness of the oil film in the load zone. Some experimental results are provided to illustrate that at low normalised loads involving oil whirl and oil whip, no electric current is detected, while high levels of electric current are registered at high load levels when no oil whirl or oil whip occurred. It is therefore concluded that at low loads, oil whirl and oil whip have little influence on wear and tear in a journal bearing.

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References

  1. Goodwin MJ (1989) Dynamics of rotor-bearing systems. Unwin Hyman Ltd, London, pp 167–188

    Google Scholar 

  2. Muszynska A (1986) Whirl and whip—rotor/bearing stability problems. J Sound Vib 110(3):443–462

    Article  Google Scholar 

  3. Robbersmyr KG, Olsen H (1996) On oil whirl and oil whip, vol 1. The 7th symposium of Nordic Tribology, Nordtrib 96, Bergen, Norway, pp 16–19, June 1996

  4. Muszynska A (1988) Stability of whirl and whip in rotor/bearing systems. J Sound Vib 127(1):49–64

    Article  MathSciNet  Google Scholar 

  5. Fan C-C, Syu J-W, Pan M-C, Tsao W-C (2011) Study of start-up vibration response for oil whirl, oil whip and dry whip. Mech Syst Signal Process 25(8):3102–3115

    Article  Google Scholar 

  6. Schweizer B (2009) Oil whirl, oil whip and whirl/whip synchronization occurring in rotor systems with full-floating ring. Nonlinear Dyn 57(4):509–532

    Article  MATH  Google Scholar 

  7. de Castro HF, Cavalca KL, Nordmann R (2008) Whirl and whip instabilities in rotor-bearing system considering a nonlinear force model. J Sound Vib 317(1–2):273–293

    Article  Google Scholar 

  8. Burke AE, Neale MJ, Martin FA (1966) Calculation methods for steadily loaded pressure fed hydrodynamic journal bearings, Engineering Science Data Item No. 66023, Institution of Mechanical Engineers, London

  9. Berry JE (2005) Oil whirl and whip instabilities—within journal bearings, Machinery lubrication magazine, May, Issue Number: 200505

  10. Yang SH, Kim C, Lee Y-B (2006) Experimental study on the characteristics of pad fluttering in a tilting pad journal bearing. Tribol Int 39(7):689–694

    Article  Google Scholar 

  11. STI Field Application Note: Bearing Failure Modes, Ref.: http://www.stiweb.com/appnotes/jbfail.htm

  12. IOtech: Steam turbine rotor testing using the ZonicBook, Application Note #93. Ref: http://www.iotech.com/an93.html

  13. Norton RL (2000) Machine design; an integrated approach, chapter 10.5 and 10.6, 2nd edn. Prentice Hall Inc, Upper Saddle River, pp 631–646

    Google Scholar 

  14. Scott R (2005) Journal bearings and their lubrication, machinery lubrication magazine, June

  15. SKF condition monitoring: PRISM4 for Windows—users manual, San Diego, USA, 1996

  16. First order RC circuit, Ref: www.clarkson.edu/~svoboda/eta/plots/RC.html-3k

  17. http://webphysics.davidson.edu/physlet_resources/gustavus_physlets/rccircuit.html: RC Circuit

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Authors and Affiliations

  1. Faculty of Engineering and Science, Department of Engineering Sciences, Mechatronics, University of Agder, 4886, Grimstad, Norway

    Kjell G. Robbersmyr & Hamid Reza Karimi

  2. Faculty of Technology, Department of Mechanical and Logistical Engineering, Sør-Trøndelag University College, 7005, Trondheim, Norway

    Herman Olsen

  3. Department of Product Development and Material Engineering, Norwegian University of Science and Technology, 7491, Trondheim, Norway

    Kristian Tønder

Authors
  1. Kjell G. Robbersmyr
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  2. Herman Olsen
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  3. Hamid Reza Karimi
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  4. Kristian Tønder
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Correspondence to Kjell G. Robbersmyr.

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Robbersmyr, K.G., Olsen, H., Karimi, H.R. et al. Oil whip-induced wear in journal bearings. Int J Adv Manuf Technol 73, 973–980 (2014). https://doi.org/10.1007/s00170-014-5805-8

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  • DOI: https://doi.org/10.1007/s00170-014-5805-8

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