K. P. Lijesh, and H. Hirani, Stiffness and Damping Coefficients for Rubber mounted Hybrid Bearing, Lubrication Science, 26(5), 2014, 301-314.Lijesh KP and Hirani H. Stiffness and damping coeffi- cients for rubbe
Both the steady-state and transient equations for the hydrodynamic bearing forces are derived. The steady-state equations are used to determine the bearing equivalent stiffness and damping coefficients. These coefficients are used to find the bearing configuration which will provide the optimum suppor...
The bearing forces in each pad were evaluated by solving the Reynolds equation with full account of geometrical and pressure transient terms. The forces are used in the dynamic equations for all degrees of freedom involved. The stiffness and damping coefficients is calculated directly from the time...
Hence, stiffness and damping coefficients can provide a good model for a wide range of situations. However, in some cases, this approach does not suffice to describe the dynamic behavior of the rotor-bearing system. Moreover, unstable motion occurs due to precessional orbits in the rotor-...
By adjustments to the shape of the pads and bearing clearance, bearing stiffness and damping characteristics can be controlled. This bearing is successful in applications where the pressure-dam design is inadequate. Sign in to download full-size image Fig. 8.58. Top left: Radial bearings; Top ...
The fluid film lubrication equation for a zero-speed, orifice-compensated, multipocket hydrostatic journal bearing is solved by a finite element method for determining its steady-state performance and the dynamic stiffness and damping coefficients. These coefficients of the film influence the response of...
Findings of this study indicates that the hybrid DLPJB S operating under non-Newtonian lubricant offers enhanced values of \\({\\bar{h}}_{min}\\) , \\({\\bar{\\omega}}_{th}\\) and rotor dynamic coefficients (stiffness and damping coefficients)....
The filter is demonstrated using numerically simulated data for a rotor-bearing system with two identical bearings, which reduces the number of unknown linear dynamic coefficients to eight. The filter estimates the direct damping coefficients and all four stiffness coefficients correlated well with actual...
By adjustments to the shape of the pads and bearing clearance, bearing stiffness and damping characteristics can be controlled. This bearing is successful in applications where the pressure-dam design is inadequate. Sign in to download full-size image Fig. 8.58. Top left: Radial bearings; Top ...
The experimental procedure identifies the stiffness and damping coefficients of the air gap model. The model validation was obtained comparing the experimental and theoretical bode diagrams of the studied system. The comparison demonstrates that the model leads to good results when neighbours of ...