Simulations of the influence of the heat flux at the shaft surface of the conical slide bearing on its hydrodynamic lubrication and operating parameters

• Autorzy: Czaban Adam , Miszczak Andrzej

Identyfikatory

DOI

10.2478/kones-2019-0086

• Języki publikacji: EN

Abstrakty

EN

The aim of this work is to investigate, how in the adopted model of hydrodynamic lubrication of a conical slide bearing, the change of the heat flux value at the bearing shaft, affects bearing operating parameters. In this research, the authors use, the known from the literature, Reynolds type equation, describing the stationary hydrodynamic lubrication process of a conical slide bearing. The analytical, solutions, that determine the components of the lubricating oil velocity vector and the equation (analytical solution of energy equation) determining the threedimensional temperature distribution in the lubrication gap, was also adopted from previous works. In order to obtain numerical solutions, the Newton’s method was used, and the derivatives in the Reynolds type equation were approximated by the finite differences. An application of the method of subsequent approximations allowed considering the influence of temperature, pressure and shearing rate on the viscosity of lubricating oil. The considerations were performed by adopting the Reynolds condition of the hydrodynamic oil film. It was tested, how the assumed value of the heat flux on the bearing shaft surface affects the values of the obtained operating parameters, i.e. the transverse and longitudinal component of the load carrying capacity, friction force and coefficient of friction.

Słowa kluczowe

EN

hydrodynamic lubrication; slide bearing; conical bearing; heat conduction; pressure distribution; viscosity

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2019
• Tom: Vol. 26, No. 4
• Strony: 29--37
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Czaban Adam

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

autor

Miszczak Andrzej

• Gdynia Maritime University, Faculty of Marine Engineering Morska Street 81-87, 81-225 Gdynia, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Czaban, A., Analiza hydrodynamicznego smarowania ferroolejami stożkowego łożyska ślizgowego, Rozprawa dokt., Uniwersytet Morski, Gdynia 2019.
• [2] Frycz, M., Wpływ stężenia cząstek magnetycznych w ferro-oleju na parametry przepływowe i eksploatacyjne poprzecznych łożysk ślizgowych, Rozprawa doktorska, Akademia Morska, Gdynia 2018.
• [3] Gohar, R., Elastohydrodynamics, Imperial College Press, Singapore 2001.
• [4] Kelley, C. T., Iterative Solution of Systems of Linear and Nonlinear Equations, Society for Industrial and Applied Mathematics, Philadelphia 1995.
• [5] Miszczak, A., Analiza hydrodynamicznego smarowania ferrocieczą poprzecznych łożysk ślizgowych, Fundacja Rozwoju Akademii Morskiej, Gdynia 2006.
• [6] Wierzcholski, K., Miszczak, A., Mathematical principles and methods of biological surface lubrication with phospholipids bilayers, Biosystems, Vol. 178, pp. 32-40, 2019.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).