Abstract
The paper briefly introduces a finite difference method based mathematical model to predict the stability of a finite journal bearing. The proposed method is used to integrate the geometrical irregularities of bearing such as non-circularity and surface roughness with the operational error like misalignment to represent more accurate film thickness. The bearing bore is assumed elliptic with longitudinal or transverse type wave pattern of roughness. A combined solution of Reynolds equation and Energy equation is made using effective influence Newton–Raphson method of error convergence. The non-Newtonian behavior of lubricant is addressed based on Power Law model. Thermal effect is considered adiabatic. Further to this analysis, the steady state and related perturbed pressures are estimated using linearization of bearing reaction. The dimensionless spring and damping coefficients are evaluated to find the critical mass and whirl ratio. Finally, the effect of misalignment bore ellipticity and roughness pattern on stability of such journal bearing is discussed in detail.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
