Abstract
The aim of this work is to demonstrate how to utilize the bearings damping coe±cients
to estimate the orbit for a dynamically loaded journal bearing. The classical method
for this analysis was developed by Booker in 1965 [1]and described further in 1972 [2].
Several authors have re¯ned this method over the years. In 1966 Jorgen W. Lund
[5]published an approach to ¯nd the dynamic coe±cients of a journal bearing by a
¯rst order perturbation of the Reynold's equation. These coe±cients made it possible
to perform a rotor-bearing stability analysis for a statically loaded bearing. In the
mid seventies Jorgen W. Lund pointed out in lecture notes that the dynamic damping
coe±cients of the bearing could be used to ¯nd the shaft orbit for dynamically loaded
bearings. For simplicity the "Short-Width-Journal-Bearing Theory" is used as a basis
for ¯nding the damping coe±cients in this work, but the method is general and the
damping coe±cients could have been found also by numerical solutions.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the World Tribology Congress III |
| Number of pages | 12 |
| Publication date | 2005 |
| Publication status | Published - 2005 |
| Event | World Tribology Congress III - Washington DC, United States Duration: 12 Sept 2005 → 16 Sept 2005 Conference number: 3 |
Conference
| Conference | World Tribology Congress III |
|---|---|
| Number | 3 |
| Country/Territory | United States |
| City | Washington DC |
| Period | 12/09/2005 → 16/09/2005 |
Keywords
- Journal bearing
- Dynamic load
- Orbit