Abstract
An analytical study is carried out on the stability of the full annular rub solutions of an externally excited, modified Jeffcott rotor with a given rotor/stator clearance and cross-coupling influences. The obtained analytical stability conditions provide an opportunity for a better understanding of the dynamical phenomena of rotor/stator systems with rubs, such as jump phenomena and the transition between periodic and quasi-periodic full rub responses as well as between the full annular rubs and the partial rubs. A systematic study on the influence of the system parameters on these phenomena is carried out. It is found that the simultaneous presence of the coefficient of friction and the cross-coupling stiffness coefficient with a proper value may benefit the dynamics of the rotor/stator system with rubs.
| Original language | English |
|---|---|
| Article number | 273464 |
| Pages (from-to) | 269-283 |
| Number of pages | 15 |
| Journal | Nonlinear Dynamics |
| Volume | 24 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2001 |
| Externally published | Yes |
Keywords
- Bifurcation
- Rotor instability
- Rotor/stator rub
- Stability analysis