An approximate solution technique for multilobe journal bearings including thermal effects, with comparison to experiment

Journal Article (Journal Article)

An approximate solution method for multilobe journal bearings that includes thermal effect is presented. The method is based on the assumption of an axial pressure distribution in the form of a polynomial, which allows the solution of Reynolds' equation by a one-dimensional finite element routine with little loss in accuracy from two-dimensional methods. A first order form of the energy equation for an adiabatic film is used to predict temperatures within the bearing, and the viscosity is determined as an exponential function of temperature. Comparison of solutions obtained by the variable viscosity method to effective viscosity solutions after Lund and Thomsen illustrates discrepancies in operating eccentricity and stiffness coefficients between the two approaches. Good correlation was obtained between the variable viscosity solutions and experimental measurements reported by Tonnesen and Hansen of eccentricity, pressures, and temperatures in a two-axial groove bearing. © 1983 Taylor & Francis Group, LLC.

Full Text

Duke Authors

Cited Authors

  • Knight, JD; Barrett, LE

Published Date

  • January 1, 1983

Published In

Volume / Issue

  • 26 / 4

Start / End Page

  • 501 - 508

International Standard Serial Number (ISSN)

  • 0569-8197

Digital Object Identifier (DOI)

  • 10.1080/05698198308981532

Citation Source

  • Scopus