Volume 19, Issue 10 (October 2019)                   Modares Mechanical Engineering 2019, 19(10): 2443-2453 | Back to browse issues page

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Rasoolizadeh Shooroki A, Dashti Rahmatabadi A, Zare Mehrjardi M. Effect of Shell Surface Texture Geometry on the Steady State Performance Indexes of Hydrodynamic Journal Bearings. Modares Mechanical Engineering 2019; 19 (10) :2443-2453
URL: http://mme.modares.ac.ir/article-15-24026-en.html
1- Department of Mechanical Engineering, Yazd University, Yazd, Iran
2- Department of Mechanical Engineering, Yazd University, Yazd, Iran , dashti@yazd.ac.ir
3- Engineering Faculty, Ardakan University, Ardakan, Iran
Abstract:   (2903 Views)
Improvement of behavioral indicators of oil journal bearings has particular importance due to the increasing development of their application as support of rotary components in industrial machinery. Creation of regular roughness (texture) with various geometries on the inner surface of a bearing shell is one of the newest methods proposed by the lubrication researchers to enhance the performance of the hydrodynamic journal bearings. In this study, the comparison of the performance of circular bearings with variable cubic, cylindrical and ellipsoid textures of different depths arranged in a different zone of the shell has been evaluated. For this purpose, the governing Reynolds equation on hydrodynamic lubrication of oil journal bearing was modified considering the changes of the film thickness affected by the geometry and position of the textures. This equation was solved by finite element numerical method, applying the assumption of the Reynolds boundary condition for determining cavitation zone. After obtaining the lubricant pressure profile, the parameters of steady-state performance of the bearing with different texture types were calculated and compared together. Results indicate that the creation of textures with any geometry reduces the lubricant pressure and changes the parameters of the bearing performance. Also, the placement of textures in the maximum pressure area leads to significant changes in performance components while their positioning in the lubricant cavitation region has a weak effect on the bearing behavior. Further, the results show that the difference in characteristics of bearing performance with shallow textures is more considerable and with the increase of textures depth the effect of geometry form on the performance will be reduced.
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Article Type: Original Research | Subject: Experimental Fluid Mechanics
Received: 2018/08/12 | Accepted: 2019/02/23 | Published: 2019/10/22

1. Sinanoğlu C, Nair F, Baki Karamış M. Effects of shaft surface texture on journal bearing pressure distribution. Journal of Materials Processing Technology. 2005;168(2):344-353. [Link] [DOI:10.1016/j.jmatprotec.2005.02.252]
2. Ausas R, Ragot P, Leiva J, Jai M, Bayada G, Buscaglia GC. The impact of the cavitation model in the analysis of microtextured lubricated journal bearings. Journal of Tribology. 2007;129(4):868-875. [Link] [DOI:10.1115/1.2768088]
3. Tala-Ighli N, Maspeyrot P, Fillon M, Bounif A. Effects of surface texture on journal-bearing characteristics under steady-state operating conditions. Proceedings of the Institution of Mechanical Engineers Part J Journal of Engineering Tribology. 2007;221(6):623-633. [Link] [DOI:10.1243/13506501JET287]
4. Kango S, Sharma RK. Studies on the influence of surface texture on the performance of hydrodynamic journal bearing using power law model. International Journal of Surface Science and Engineering. 2010;4(4/5/6):505-524. [Link] [DOI:10.1504/IJSURFSE.2010.035150]
5. Dadouche A, Conlon MJ, Dmochowski W, Koszela W, Galda L, Pawlus P. Effect of surface texturing on the steady-state properties and dynamic coefficients of a plain journal bearing: Experimental study. ASME Proceedings Structures and Dynamics Parts A and B. 2011;6:695-704. [Link] [DOI:10.1115/GT2011-46804]
6. Tala-Ighil N, Fillon M, Maspeyrot P. Effect of textured area on the performances of a hydrodynamic journal bearing. Tribology International. 2011;44(3):211-219. [Link] [DOI:10.1016/j.triboint.2010.10.003]
7. Wang SH, Wu XY, Zheng JH. Influence of surface texture on lubrication performance of hydrodynamic journal bearing. Applied Mechanics and Materials. 2012;120:426-431. [Link] [DOI:10.4028/www.scientific.net/AMM.120.426]
8. Rao TVVLN, Rani AMA, Nagarajan T, Hashim FM. Partially textured slider and journal bearing analysis. Jurnal Teknologi. 2012;58 Suppl 2:77-84. [Link] [DOI:10.1063/1.4704227]
9. Brizmer V, Kligerman Y. A laser surface textured journal bearing. Journal of Tribology. 2012;134(3):031702. [Link] [DOI:10.1115/1.4006511]
10. Reddy Ganji TS, Kakoty SK. Analysis on micro-elliptical textured journal bearing. International Journal of Current Engineering and Technology. 2014;(2):648-650. [Link] [DOI:10.14741/ijcet/spl.2.2014.123]
11. Sharma N, Kango S, Sharma RK. Investigations on the effects of surface texture on the performance of a porous journal bearing operating with couple stress fluids. International Journal of Surface Science and Engineering. 2014;8(4):392-407. [Link] [DOI:10.1504/IJSURFSE.2014.065817]
12. Meng FM, Zhang L, Liu Y, Li TT. Effect of compound dimple on tribological performances of journal bearing. Tribology International. 2015;91:99-110. [Link] [DOI:10.1016/j.triboint.2015.06.030]
13. Hamdavi Sh, Ya HH, Rao TVVLN. Effect of surface texturing on hydrodynamic performance of journal bearing, ARPN Journal of Engineering and Applied Sciences. 2016;11(1):172-176. [Link]
14. Sharma K. Investigation on the influence of spherical textures on the performance characteristics of porous journal bearing. International Journal of Applied Engineering and Technology. 2016;6(3):97-106. [Link]
15. Wang L, Han Z, Chen G, Su H. Thermo-hydrodynamic analysis of large-eccentricity hydrodynamic bearings with texture on journal surface. Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science. 2018;232(19):3564-3569. [Link] [DOI:10.1177/0954406217739646]
16. Aliheidari Biouki M, Dashti Rahmatabadi A, Zare Mehrjardi M. The effect of shell texturing on the performance of noncircular hydrodynamic two lobe journal bearings. Modares Mechanical Engineering. 2018;18(2):293-304. [Persian] [Link]
17. Cupillard S. Thermohydrodynamics of sliding contacts with textured surfaces [Dissertation]. Luleå: Luleå University of Technology; 2009. [Link]
18. Raimondi AA, Boyd J. A solution for the finite journal bearing and its application to analysis and design. ASLE Transactions. 1958;1(1):194-209. [Link] [DOI:10.1080/05698195808972330]
19. Reddi MM, Chu TY. Finite element solution of steady-state incompressible lubrication problem. Journal of Lubrication Technology. 1970;92(3):495-502. [Link] [DOI:10.1115/1.3451453]
20. Das S, Guha SK, Chattopadhyay AK. Linear stability analysis of hydrodynamic journal bearings under micropolar lubrication. Tribology International. 2005;38(5):500-507. [Link] [DOI:10.1016/j.triboint.2004.08.023]
21. Dashti Rahmatabadi A, Zare Mehrjardi M, Fazel MR. Performance analysis of micropolar lubricated journal bearings using GDQ method. Tribology International. 2010;43(11):2000-2009. [Link] [DOI:10.1016/j.triboint.2010.05.002]

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