Transient Non-Newtonian Thermohydrodynamic Mixed Lubrication of Dynamically Loaded Journal Bearings

Author:

Zhang Chao1,Cheng H. S.1

Affiliation:

1. Department of Mechanical Engineering, Northwestern University, Evanston, IL 60208

Abstract

A transient non-Newtonian THD theory of dynamically loaded journal bearings in mixed lubrication is presented. A mass conserving cavitation is included and shear thinning and viscoelasticity are characterized by the power law and the upper convected Maxwell models, respectively. The 2-D energy equation is solved with ISOADI (isothermal shaft and adiabatic bushing inner surface) boundary conditions. The journal is treated as a quasi-steady and lumped thermal element. [S0742-4787(00)02001-4]

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Reference17 articles.

1. Rastogi, A., and Gupta, R. K., 1991, “Accounting for Lubricant Shear Thinning in the Design of Short Journal Bearings,” J. Rheol., 35, pp. 589–603.

2. Boedo, S., and Booker, J. F., 1995, “Body Force and Roughness Effects in Mass-Conserving Model Based Elastohydrodynamic Lubrication Model,” Proc. of the International Tribology Conference, Yokohama, pp. 1061–1066.

3. Ai, Xiaolan, Cheng, H. S., Hua, Dongyun, Moteki, K., and Aoyama, S., 1998, “A Finite Analysis of Dynamically Loaded Journal Bearings in Mixed Lubrication,” STLE Tribol. Trans., 44, No. 2, pp. 273–281.

4. Paranjpe, R. S., and Han, T. Y., 1995, “A Transient Thermohydrodynamic Analysis Including Mass Conserving Cavitation for Dynamically Loaded Journal Bearings,” ASME J. Tribol., 117, pp. 369–378.

5. Wang, X., Wen, S., and Gui, C., 1998, “An Analysis of the Thermohydrodynamic Performance of Dynamically Loaded Bearings,” Proc. of The First Asia International Conference on Tribology, Beijing, 1998, pp. 25–29.

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