Abstract
A theoretical analysis is presented to study the effect of support stiffness and damping on the transient response of flexibly supported rotor-bearing systems, considering surface roughness. The transient response of rotor is plotted in the form of trajectories. The average Reynolds equation, which uses the Patir and Cheng flow simulation model of rough surfaces, is solved by the finite difference method with a successive over-relaxation scheme (Gauss-Seidel), while the equations of motion of both the rotor and bearing are solved by the fourth-order Runge-Kutta method. It has been found that the surface roughness considerably affects the stability of a rotor-bearing system and the stability may be improved greatly by a proper design of bearing supports.
Original language | English |
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Pages (from-to) | 437-444 |
Number of pages | 8 |
Journal | Tribology Transactions |
Volume | 40 |
Issue number | 3 |
DOIs | |
State | Published - Jan 1 1997 |
Externally published | Yes |
Keywords
- Journal Bearings
- Stability
- Surface Roughness