Roughness effects of textured surfaces in hydrodynamic lubrication

• Autorzy: Bahi Youssef , El Gadari Mhammed , Rahmoune Miloud

Identyfikatory

DOI

10.2478/ijame-2022-0032

• Języki publikacji: EN

Abstrakty

EN

Several studies have been conducted to improve and model the lubricated contact between surfaces. The main subjects were defining the hydrodynamic parameters to reduce energy losses and protect the environment. Some of the proposed models have studied the effect of textures in hydrodynamic lubrication and have proved that adapted shapes and geometries can improve the performance of lubricated contacts. A hydrodynamic model was developed by assuming the roughness of the textured surface and considering the cavitation in a steady-state regime. The proposed model was validated and compared with the analytical model of Fowell et al. [1]. Three different textures shapes were considered. The results showed that the rough-textured thrust affects the hydrodynamic performance significantly. Thus, by increasing the arithmetic roughness of textured surfaces, the hydrodynamic pressure, and the lifting force increase depending on the texture shape. A rougher surface slightly increases the friction force for the three considered textures.

Słowa kluczowe

EN

finite difference; texture; roughness; HD pressure; lifting force; friction; leakage

PL

tekstura; chropowatość; tarcie; ciśnienie

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2022
• Tom: Vol. 27, no. 3
• Strony: 9--21
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Bahi Youssef

• Moulay Ismail University Faculty of Science FS-Meknes, MOROCCO

autor

El Gadari Mhammed

• Moulay Ismail University Faculty of Science FS-Meknes, MOROCCO

autor

Rahmoune Miloud

• Moulay Ismail University Faculty of Science FS-Meknes, MOROCCO

Bibliografia

• [1] Fowell M., Olver A.V., Gosman A.D., Spikes H.A. and Pegg I. (2007): Entrainment and inlet suction: two mechanisms of hydrodynamic lubrication in textured bearings.– ASME Journal of Tribology, vol.129, pp.336-345.
• [2] Holmberg K. and Erdemir A. (2017): Influence of tribology on global energy consumption, costs and emissions.– Friction, vol.5, pp.263-284.
• [3] Sudeep U., Tandon N. and Pandey RK. (2015): Performance of lubricated rolling/sliding concentrated contacts with surface textures: a review.– J Tribol-Trans ASME, vol.137, No.3, Article No.031501, p.11, https://doi.org/10.1115/1.4029770.
• [4] Gu C.X, Meng X.H, Xie Y.B. and Yang Y.M. (2016): Effects of surface texturing on ring/liner friction under starved lubrication.– Tribology International, vol.94, pp.591-605, https://doi.org/10.1016/j.triboint.2015.10.024.
• [5] Ausas R., Ragot P., Leiva J., Jai M., Bayada G. and Buscaglia G.C. (2007): The impact of the cavitation model in the analysis of microtextured lubricated journal bearing.– J Tribol-Trans ASME, vol.129, No.4, pp.868-875, https://doi.org/10.1115/1.2768088.
• [6] Jakobsson B. and Floberg L. (1957): The Finite Journal Bearing, Considering Vaporization.– Gumperts Förlag, p.116.
• [7] Olsson K.-O. (1965): Cavitation in Dynamically Loaded Bearing.– Scandinavian University Books, p.59.
• [8] Gropper D., Wang L. and Harvey T.J. (2016): Hydrodynamic lubrication of textured surfaces: a review of modeling techniques and key finding.– Tribology International, vol.94, pp.509-529, https://doi.org/10.1016/j.triboint.2015.10.009.
• [9] Muchammad M., Tauviqirrahman M., Jamari J. and Schipper D.J. (2016): An analytical approach on the tribological behavior of pocketed slider bearings with boundary slip including cavitation.– Lubrication Science, vol.29, No.3, pp.133-152, https://doi.org/10.1002/ls.1361.
• [10] El Gadari M., Fatu A. and Hajjam M. (2016): Effect of the grooved shaft on the rotary lip seal performance in transient condition: Elasto-hydrodynamic simulation.– Tribology International, vol.93, Part A, pp.411-418, https://doi.org/10.1016/j.triboint.2015.09.031.

Uwagi

PL

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)