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Farklı Yağ Besleme Basıncının Kaymalı Yatak Performansına Etkisi

Year 2019, Volume: 9 Issue: 1, 212 - 222, 30.06.2019
https://doi.org/10.31466/kfbd.572535

Abstract

Bu çalışmada, tek silindirli 4 zamanlı dizel
Ricardo Hydra motorunun biyel kolu yatağının performansı farklı yağ besleme
basıncında (3 bar, 5 bar, 7 bar) incelenmiştir. Dinamik olarak yüklenen biyel
kolu yatağındaki yağ besleme basıncı değişiminin; minimum yatak boşluğuna,
maksimum yağ filmi basıncına, sürtünme torkuna, mil merkezinin çizdiği
yörüngeye ve yatak yuvasında meydana gelen hidrodinamik güç kayıplarına nasıl tesir
ettiği teorik olarak incelenmiştir. Ricardo ORBIT V1.2 yazılımı kullanılarak,
literatürde yaygın olarak kullanılan hızlı ve doğru bir çözüm sunan Sonlu Hacim
Yöntemi ile analizler gerçekleştirilmiştir. Farklı yağ besleme basınçlarında;
biyel kolu yatağının dinamik yük altındaki performansını nasıl etkilediği dikkatlice
incelenmiştir. Araştırma sonuçlarından; artan yağ besleme basıncı; Yatak
boşluğunun, maksimum yağ filmi basıncının arttırıldığı, sürtünme momentinin ve
hidrodinamik güç kayıplarının arttığı belirlenmiştir. Mil merkezinin çizdiği
yörüngesinde hemen hemen sabit olduğu görülmüştür. Bu araştırmanın sonuçlarırnda,
farklı yağ besleme basıncılarının yatağın minimum yatak boşluğuna, maksimum yağ
filmi basıncına, sürtünme torkuna, biyel kolu yatağındaki mil merkezi
yörüngesine ve dinamik yük altındaki hidrodinamik güç kayıplarına tesir
ettiğini göstermiştir


References

  • Ahmad, M.A., Kasolang, S. and Dwyer Joyce R.S. (2014), “Experimental Study on the Effects of Oil Groove Location on Temperature and Pressure Profiles in Journal Bearing Lubrication”, Tribology International, Vol. 74, 79-86.
  • Ahmad, M.A., Kasolang, S., Dwyer Joyce, R.S. and Abu Bakar, M.A. (2013), “The Effects of Oil Groove Position on Torque and Frictional Force in Hydrodynamic Journal Bearing”, Applied Mechanics and Materials, Vol. 393, 907-913.
  • Kasolang, S., Ahmad, M.A., Dwyer Joyce, R.S. and Taib, C.F.M. (2012),“Preliminary Study of Pressure Profile in Hydrodynamic Lubrication Journal Bearing”, Procedia Engineering, Vol. 41, 1743-1749.
  • Brito, F.P., Miranda, A.S. and Fillon, M. (2012), “Analysis of the Effect of Grooves in Single and Twin Axial Groove Journal Bearings Under Varying Load Direction”, Tribology International, Vol. 103, 609-619.
  • Ricardo Software (2000), Journal Bearing Analysis Orbit, Documentation/User manual Version 1.2, IL., USA.
  • Gulwadi, S. D. and Shrimpling, G. (2003), “Journal Bearing Analysis in Engines Using Simulation Techniques”, SAE Technical Paper Series, DOI:10.4271/2003-01-0245.
  • Woods,C. M. and Brewe, D. E. (1989), “The Solution of the Elrod Algorithm for a Dynamically Loaded Journal Bearing Using Multigrid Techniques”, Transactions of the ASME, Journal of Tribology, Vol. 111, 302-308.
  • Goenka, P. K. (1984), “Dynamically Loaded Journal Bearings: Finite Element Method Analysis”, Transactions of the ASME, Journal of Tribology, Vol.106, 429-437.

The Effects of Different Oil Supply Pressure on Journal Bearing Performance

Year 2019, Volume: 9 Issue: 1, 212 - 222, 30.06.2019
https://doi.org/10.31466/kfbd.572535

Abstract

In this study, the performance of the connecting
rod bearing of the one cylinder 4-stroke diesel Ricardo Hydra Engine was
investigated at different oil supply pressure (3 bar, 5 bar, 7 bar) by
examining the performance of the selected connecting rod bearing as an example;
radial journal bearing users and bearing designers. Width the change of the oil
supply pressure  at the dynamically loaded
connecting rod bearing; how the minimum bearing clearance, the maximum oil film
pressure, the friction torque, the shaft orbit in connecting rod bearing and
the hydrodynamic power losses that occur in the journal bearing have been
theoretically investigated. Using the Ricardo ORBIT V1.2 software analysis were
performed using the Finite Volume Method which provides a fast and accurate
solution commonly used in the literature. At the different connecting rod
bearing width; how it affected the performance of the journal bearing under
dynamic load was carefully examined. From the results of the research;
increased oil supply pressure; It has been determined that the bearing
clearance, the maximum oil film pressure is increased, the friction torque and
hydrodynamic power losses increase. The orbit drawn by the shaft orbit in
connecting rod bearing is stable. The results of this research showed that the
different oil supply pressure plays an important role in minimum bearing
clearance, the maximum oil film pressure, the friction torque, the shaft orbit
in connecting rod bearing and the hydrodynamic power losses under the dynamic
load.

References

  • Ahmad, M.A., Kasolang, S. and Dwyer Joyce R.S. (2014), “Experimental Study on the Effects of Oil Groove Location on Temperature and Pressure Profiles in Journal Bearing Lubrication”, Tribology International, Vol. 74, 79-86.
  • Ahmad, M.A., Kasolang, S., Dwyer Joyce, R.S. and Abu Bakar, M.A. (2013), “The Effects of Oil Groove Position on Torque and Frictional Force in Hydrodynamic Journal Bearing”, Applied Mechanics and Materials, Vol. 393, 907-913.
  • Kasolang, S., Ahmad, M.A., Dwyer Joyce, R.S. and Taib, C.F.M. (2012),“Preliminary Study of Pressure Profile in Hydrodynamic Lubrication Journal Bearing”, Procedia Engineering, Vol. 41, 1743-1749.
  • Brito, F.P., Miranda, A.S. and Fillon, M. (2012), “Analysis of the Effect of Grooves in Single and Twin Axial Groove Journal Bearings Under Varying Load Direction”, Tribology International, Vol. 103, 609-619.
  • Ricardo Software (2000), Journal Bearing Analysis Orbit, Documentation/User manual Version 1.2, IL., USA.
  • Gulwadi, S. D. and Shrimpling, G. (2003), “Journal Bearing Analysis in Engines Using Simulation Techniques”, SAE Technical Paper Series, DOI:10.4271/2003-01-0245.
  • Woods,C. M. and Brewe, D. E. (1989), “The Solution of the Elrod Algorithm for a Dynamically Loaded Journal Bearing Using Multigrid Techniques”, Transactions of the ASME, Journal of Tribology, Vol. 111, 302-308.
  • Goenka, P. K. (1984), “Dynamically Loaded Journal Bearings: Finite Element Method Analysis”, Transactions of the ASME, Journal of Tribology, Vol.106, 429-437.
There are 8 citations in total.

Details

Primary Language English
Subjects Engineering
Journal Section Articles
Authors

Hakan Adatepe 0000-0002-1949-5811

Publication Date June 30, 2019
Published in Issue Year 2019 Volume: 9 Issue: 1

Cite

APA Adatepe, H. (2019). The Effects of Different Oil Supply Pressure on Journal Bearing Performance. Karadeniz Fen Bilimleri Dergisi, 9(1), 212-222. https://doi.org/10.31466/kfbd.572535