Abstract
The dynamic characteristics of roller bearings at high speed have important effect on rotor system of aero-engine. In order to obtain the accurate dynamic characteristics of roller bearings, the dynamic analysis models of roller bearings under four-DOF load are established by quasi-dynamic method, in which forces and moments are obtained from interaction model of bearing parts and traction force is computed by an accurate traction model. The computational method of dynamic characteristics of bearing with noncircular raceway is given. The rules of impact of different operating condition parameters and bearing structure parameters on dynamic characteristics of roller bearings are analyzed by the program. Finally, the accurateness of the program is verified by the lest data. The study of dynamic characteristics of ball bearings establishes the foundation for the further study of dynamic characteristic coupling analysis of rotor-bearing system.
| Original language | English |
|---|---|
| Pages (from-to) | 492-498 |
| Number of pages | 7 |
| Journal | Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica |
| Volume | 29 |
| Issue number | 2 |
| State | Published - Mar 2008 |
| Externally published | Yes |
Keywords
- Dynamic characteristic
- Four-DOF load
- Noncircular raceway
- Quasi-dynamic
- Roller bearing
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