Cover
Vol. 9 No. 1 (2009)

Published: June 30, 2009

Pages: 34-41

Original Article

Dynamic Forces and Stress Analysis in the Journal Bearing System

Azzam D. Hassan 1
1 Department of Materials Engineering, College of Engineering, University of Basrah, Basrah, Iraq
History
  • Received: March 30, 2009
  • Available Online: June 30, 2009
DOI

https://doi.org/10.33971/bjes.9.1.5

Abstract

This paper is concerned with a stress analysis in a bearing under unbalanced fon:es of the jownal. Some aspects of mathematical modeling of rotating structW'Cs were considered. "Finite Element Method'' is fom1ulated for modeling rotating structures. As an application, a test rotor mounted on two-lobe hydrodynamic bearings is presented. Unbalance response calculations for various unbalance magnitudes are ca1Ticd out in the bearing location. The bearing coefficients were found at rotational speed of 4,000 rpm. An accurate identification of bearing force parameters, i.e. stiffness and damping coefficients is presented by a classical linearized model. The bearing support forces in tlexiblc rotor-bearing systems are presented as a function of unbalance response of the journal. The calculation of the bearing stress due to rotor w1balance are carried out using ANSYS. The ANSYS program gives a good aids in understanding the ~tress analysis in the bearing under the action of journal rotation.

References

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