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Nonlinear Dynamics of Flexible Rotors Supported on Journal Bearings—Part II: Numerical Bearing Model
(American Society of Mechanical Engineers, 2018)
The nonlinear stability of a flexible rotor-bearing system supported on finite length journal bearings is addressed. A perturbation method of the Reynolds lubrication equation is presented to calculate the bearing nonlinear ...
Nonlinear Dynamics of Flexible Rotors Supported on Journal Bearings—Part I: Analytical Bearing Model
(American Society of Mechanical Engineers, 2018)
To determine the bifurcation types in a rotor-bearing system, it is required to find higher order derivatives of the bearing forces with respect to journal velocity and position. As closed-form expressions for journal ...
Dynamic analysis of short and long journal bearings in laminar and turbulent regimes, application in critical shaft stiffness determination
(Elsevier, 2017-04)
Linear and non-linear stability of a flexible rotor-bearing system supported on short and long journal bearings is studied for both laminar and turbulent operating conditions. The turbulent pressure distribution and forces ...
A robust modification to the universal cavitation algorithm in journal bearings
(American Society of Mechanical Engineers., 2017-05)
In the current study, a modified fast converging, mass-conserving, and robust algorithm is proposed for calculation of the pressure distribution of a cavitated axially grooved journal bearing based on the finite volume ...
Linear stability analysis of finite length journal bearings in laminar and turbulent regimes
(Sage, 2017-02)
Dynamic coefficients of a finite length journal bearing are numerically calculated under laminar and turbulent regimes based on Ng–Pan–Elrod and Constantinescu models. Linear stability charts of a flexible rotor supported ...
A robust modification to the universal cavitation algorithm in journal bearings
(The American Society of Mechanical Engineers, 2016-11)
In the current study, a modified fast converging, mass-conserving, and robust algorithm is proposed for calculation of the pressure distribution of a cavitated axially grooved journal bearing based on the finite volume ...
Linear stability analysis of finite length journal bearings in laminar and turbulent regimes
(SAGE Journals, 2017-02)
Dynamic coefficients of a finite length journal bearing are numerically calculated under laminar and turbulent regimes based on Ng–Pan–Elrod and Constantinescu models. Linear stability charts of a flexible rotor supported ...