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Vibration characteristics of journal bearings

Conference Paper


Abstract


  • The objective of this paper is to study the dynamics and stability of hydrodynamic journal bearings of steam turbines in a power station. The Reynolds equation was employed to determine the oil film pressure distribution in the bearing for isothermal case. Finite element method was used to solve the equation with the Reynolds boundary condition. A perturbation method was employed to compute the four stiffness coefficients and four damping coefficients. The linear approach was used to investigate the stability of a hydrodynamic journal bearing, in which homogeneous equations of motion equations were analysed and the Routh criteria was used to determine the stability of the journal-oil film system.

Publication Date


  • 1990

Citation


  • Wang, L. H., & Tieu, A. K. (1990). Vibration characteristics of journal bearings. In National Conference Publication - Institution of Engineers, Australia (pp. 147-152).

Scopus Eid


  • 2-s2.0-0025532623

Web Of Science Accession Number


Start Page


  • 147

End Page


  • 152

Issue


  • 90 pt 9

Abstract


  • The objective of this paper is to study the dynamics and stability of hydrodynamic journal bearings of steam turbines in a power station. The Reynolds equation was employed to determine the oil film pressure distribution in the bearing for isothermal case. Finite element method was used to solve the equation with the Reynolds boundary condition. A perturbation method was employed to compute the four stiffness coefficients and four damping coefficients. The linear approach was used to investigate the stability of a hydrodynamic journal bearing, in which homogeneous equations of motion equations were analysed and the Routh criteria was used to determine the stability of the journal-oil film system.

Publication Date


  • 1990

Citation


  • Wang, L. H., & Tieu, A. K. (1990). Vibration characteristics of journal bearings. In National Conference Publication - Institution of Engineers, Australia (pp. 147-152).

Scopus Eid


  • 2-s2.0-0025532623

Web Of Science Accession Number


Start Page


  • 147

End Page


  • 152

Issue


  • 90 pt 9