Computational model of sliding bearing
https://doi.org/10.23947/1992-5980-2017-17-3-110-116
Abstract
Introduction. Refined computational models of tribosystems taking into account the dependence of viscosity and permeability of the porous coating on pressure through partial filling of the front gap with lubricant are described. The obtained calculated models allow for a comparative analysis of the newly received and already available results which confirms a great proximity of the new models to the actual one. Materials and Methods. Values of velocities and pressure field are specified on the basis of the liquid lubricant flow equations for the case of a “thin layer” and Darcy equation. The key operating characteristics of the friction bearings are determined in the porous coating on the journal surface. Research Results. A mathematical model of a radial bearing which allows determining velocity fields, pressure, load capacity, and friction force, with account of the dependence on a number of additional factors, is developed on the basis of the numerical analysis. Discussion and Conclusions. The obtained results can be used in the educational process, as well as in the engineering practice of machine-building tribosystems.
About the Authors
Maria A. Savenkova
Rostov State Transport University
Russian Federation
Russian Federation
Konstantin S. Solop
Rostov State Transport University
Russian Federation
Russian Federation
References
1. Akhverdiev, K.S., Yakovlev, M.V., Zhurba, I.A. Gidrodinamicheskiy raschet podshipnikov skol'zheniya s uchetom sil inertsii smazochnoy zhidkosti, obladayushchey vyazkouprugimi svoystvami. [Hydrodynamic design of sliding bearings with the account of inertia of the lubricating fluid with viscoelastic properties.] Friction and Wear, 2003, vol. 24, no. 2, pp. 121–125 (in Russian).
2. Akhverdiev, K.S., Vorontsov, P.A., Cherkasova, T.S. Gidrodinamicheskiy raschet podshipnikov skol'zheniya s ispol'zovaniem modeley sloistogo techeniya vyazkoy i vyazkoplastichnoy smazki. [Hydrodynamic analysis of plain bearings with the use of models with stratified flow of viscous and viscoplastic lubricant.] Friction and Wear, 1998, vol. 16, no. 6, pp. 698–707 (in Russian).
3. Akhverdiev, K.S., Mukutadze, M.A., Mulin, A.V. Gidrodinamicheskiy raschet upornogo podshipnika s vyazkouprugoy smazkoy s uchetom zavisimosti vyazkosti i modulya sdviga ot temperatury i opredelenie usloviy ustoychivosti ego raboty. [The hydrodynamic calculation of thrust bearing with viscoelastic lubricant taking into account the dependence of viscosity and shift modulus on the temperature and the determination the stability conditions of its operation.] Vestnik RGUPS, 2008, no. 3pp. 118–128 (in Russian).
4. Akhverdiev, K.S., Mukutadze, M.A., Lagunova, E.O., Solop, K.S. Raschetnaya model' upornogo podshipnika skol'zheniya s povyshennoy nesushchey sposobnost'yu, rabotayushchego na nen'yutonovskikh smazochnykh materialakh s adaptirovannoy opornoy poverkhnost'yu. [Design model of thrust sliding bearing with increased bearing capacity operating on non-Newtonian lubricants with adapted seating.] Engineering Journal of Don, 2013, no. 4. Available at: http://www.ivdon.ru/magazine/ (accessed: 24.04.2017) (in Russian).
5. Bezo, R., Hese-Bezo, S., Dalmaz, G., Wern, R. Opredelenie zavisimosti vyazkouprugikh parametrov 5R4E ot davleniya i temperatury metodom svetorasseyaniya. [Determination of dependence of viscoelastic parameters of SP4E on pressure and temperature by light scattering method.] Problemy treniya i smazki, 1986, no. 4, pp. 60–69 (in Russian).
6. Drozdov, Y.N., Pavlov, V.G., Puchkov, V.N. Trenie i iznos v ekstremal'nykh usloviyakh. [Friction and wear under extreme conditions] Moscow: Mashinostroenie, 1986, 224 p. (in Russian).
7. Zadorozhnaya, E.A., Mukhortov, I.V., Levanov, I.G. Metodika rascheta slozhnonagruzhennykh uzlov treniya, smazyvaemykh nen'yutonovskimi zhidkostyami. [Design procedure for complex-loaded friction units lubricated by non- Newtonian liquids.] XV Int. Congress of Engine Manufacturers. Kharkov: KhAI, 2010, pp. 40–41 (in Russian).
8. Zadorozhnaya, E.A., Karavaev, V.G. Otsenka teplovogo sostoyaniya slozhnonagruzhennogo podshipnika s uchetom reologicheskikh svoystv smazochnogo materiala. [Estimation of thermal state of complex-loaded bearing with account of rheological properties of lubricant.] Internal Combustion Engines, 2012, no.2, pp. 66–73 (in Russian).
9. Zadorozhnaya, E.A., Mukhortov, I.V., Levanov, I.G. Primenenie nen'yutonovskikh modeley smazochnykh zhidkostey pri raschete slozhnonagruzhennykh uzlov treniya porshnevykh i rotornykh mashin. [Application non-Newtonian models of lubricant fluids at calculation complex-loaded units of friction piston and rotor-type machines.] Friction & Lubrication in Machines and Mechanisms, 2011, no. 7, pp. 22–30 (in Russian).
10. Zakharov, S.M. Gidrodinamicheskaya teoriya smazki. [Hydrodynamic theory of lubrication.] Sovremennaya tribologiya. Itogi i perspektivy. [Modern tribology. Results and prospects.] Frolov, K.V., ed. Moscow: Izd-vo LKI, 2008, pp. 95–157 (in Russian).
11. Mukutadze, M.A. Gidrodinamicheskiy raschet upornogo podshipnika s adaptirovannym profilem opornoy poverkhnosti, rabotayushchego na szhimaemoy vyazkouprugoy smazke. [Hydrodynamic analysis of thrust bearing with adapted seating contour operating on compressible viscoelastic lubricant.] Friction and Lubrication in Machines and Mechanisms. Moscow: Mashinostroenie, 2012, pp. 19–23 (in Russian).
Review
For citations:
Savenkova M.A., Solop K.S. Computational model of sliding bearing. Vestnik of Don State Technical University. 2017;17(3):110-116. (In Russ.) https://doi.org/10.23947/1992-5980-2017-17-3-110-116
Views:
481
Email this article 