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 interaction 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.

Key words: roller , bearing,  , dynamic , characteristic,  , quasi-dynamic,  , four-DOF , load,  , noncircular , raceway