Lubrication of asymmetric rollers considering viscosity as function of mean temperature

• Autorzy: Lanka Swetha , Sajja Venkata Subrahmanyam , Prasad Dhaneshwar

Identyfikatory

DOI

10.59441/ijame/168331

• Języki publikacji: EN

Abstrakty

EN

A theoretical analysis of an asymmetric roller bearing system with cavitation that is hydro-dynamically lightly loaded and lubricated by a thin, incompressible fluid is presented. The lubricant adheres to the non-Newtonian Bingham plastic fluid concept, in which the viscosity of the fluid should change depending on the mean film temperature. The continuity and momentum equations, which regulate fluid flow, are first solved analytically and then numerically using MATLAB. Through graphs and tables, some key bearing features are addressed and further explained. This leads to the conclusion that there is a discernible difference between Newtonian and non-Newtonian fluids in terms of pressure, temperature, load, and traction. The findings are good in line with the body of literature.

Słowa kluczowe

EN

non-Newtonian; Bingham plastic; hydrodynamic lubrication; incompressible; viscosity

PL

płyn nienewtonowski; smarowanie hydrodynamiczne; lepkość

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2023
• Tom: Vol. 28, no. 2
• Strony: 49--63
• Opis fizyczny: Bibliogr. 16 poz., tab., wykr.

Twórcy

autor

Lanka Swetha

• Research Scholar, Department of Engineering Mathematics, Koneru Lakshmaiah Education Foundation Guntur-522502, INDIA
• Department of Mathematics, Sir C R Reddy College of Engineering, Eluru-534007, A.P., INDIA

autor

Sajja Venkata Subrahmanyam

• Department of Engineering Mathematics, Koneru Lakshmaiah Education Foundation Guntur-522502, INDIA

autor

Prasad Dhaneshwar

• Department of Mathematics, Kanchi Mamunivar Government Institute for Post Graduate Studies and Research, Puducherry-605008, INDIA

Bibliografia

• [1] Dhaneshwar Prasad, Sudam Sekhar Panda and Subrahmanyam, S.V. (2012): Non-Newtonian squeeze film lubrication of journal bearing with temperature effect.– Int. J. of Eng. Sci. & Adv. Techn., vol.2, No.3, pp.438-444.
• [2] Dhaneshwar Prasad, Subrahmanyam, S.V. and Sudam Sekhar Panda (2012): Thermal effects in hydrodynamic lubrication of asymmetric rollers using Runge-Kutta Fehlberg method.– Int. J. of Eng. Sci. & Adv. Techn., vol.2, No.3, pp.422-437.
• [3] Venkata Subrahmanyam Sajja and Dhaneshwar Prasad (2015): Characterization of lubrication of asymmetric rollers including thermal effects.– Indus. Lubri. Tribol., vol.67, No.3, pp.246-255. https://doi.org/10.1108/ILT-04-2013-0048.
• [4] Christopher Dorier and John Tichy, (1992): Behavior of Bingham-like viscous fluid in lubrication flows.– Journal of Non Newtonian Fluid Mechanics,vol.45, pp.291-310. https://doi.org/10.1016/0377-0257(92)80065-6.
• [5] Milne A.A. (1954): A theory of rheodynamic lubrication.– Kolloidk-Z, 139 Haft 1/2, pp.96-101.
• [6] Gadamsetty Revathi, Venkata Subrahmanyam Sajja and Dhaneshwar Prasad (2019): Bingham plastic fluid film lubrication of asymmetric rollers.– Int. J. of Sci. & Techn. Res., vol.8, No.11, pp.2549-2554.
• [7] Revathi Gadamsetty, Venkata Subrahmanyam Sajja, Sudam Sekhar, P. and Dhaneshwar Prasad (2020): Thermal effects in Bingham plastic fluid film lubrication of asymmetric rollers.– Frontiers in Heat and Mass Transfer, vol.15, No.18, pp.1-7. http://dx.doi.org/10.5098/hmt.15.18.
• [8] Dhaneshwar Prasad and Punyatma Singh (1987): Thermal and squeezing effects in non-Newtonian fluid film lubrication of rollers.– Wear, vol.119, pp.175-190, https://doi.org/10.1016/0043-1648(87)90107-4.
• [9] Tokio Sasaki, Haruo Mori and Norio Okino, (1962): Fluid lubrication theory of roller bearing.– Journal of Basic Engineering, pp.166-174. https://doi.org/10.1115/1.3657241.
• [10] Jang J.Y. and Khonsari M.M. (2013): Lubrication with Newtonian fluid.– Encyclopedia of Tribology, pp.2142-2146, Springer, Boston, MA.
• [11] Dhaneshwar Prasad and Venkata Subrahmanyam Sajja (2016): Non-Newtonian lubrication of asymmetric rollers with thermal and inertia effects.– Trib. Trans., vol.59, No.5, pp.818-830, doi.org/10.1080/10402004.2015.1107927.
• [12] Prasad D., Singh P. and Sinha P. (1988): Non-uniform temperature in non-Newtonian compressible fluid film lubrication of rollers.– J. of Trib., vol.110, pp.653-658, https://doi.org/10.1115/1.3261708.
• [13] Prasad D., Shukla J.B., Singh P., Sinha P. and Chhabra R.P. (1991): Thermal effects in lubrication of asymmetric rollers.– Tribol. Intl., vol.24, pp.239-246, https://doi.org/10.1016/0301-679X(91)90050-J.
• [14] Gadamsetty Revathi, Venkata Subrahmanyam Sajja and Dhaneshwar Prasad (2019): Thermal effects in power-law fluid film lubrication of rolling/sliding line contact.– Int. J. of Innov. Technol. Explor. Eng., vol.8, No.9, pp.277-283.
• [15] Dhaneshwar Prasad and Venkata Subrahmanyam Sajja (2016): Thermal effects in non-Newtonian lubrication of asymmetric rollers under adiabatic and isothermal boundaries.– Int. J. Chem. Sci., vol.14, No.3, pp.1641-1656.
• [16] Revathi Gadamsetty, Venkata Subrahmanyam Sajja, Sudam Sekhar P. and Dhaneshwar Prasad (2021): Squeeze film lubrication of asymmetric rollers by Bingham plastic fluid.– Front. in Heat and Mass Trans., vol.16, No.7, pp.1-6. http://dx.doi.org/10.5098/hmt.16.7.