Assuming the occurrence of impact between the isolated structure and retaining walls or adjacent structures during earthquakes,the study took the impaction stiffness,the superstructure stiffness,the mechanical properties of the bearing,the distance gap.

The values of static average resistant force and impact stiffness coefficient used for the solution are determined based onthe results obtained from the experiments.

Dynamics analysis,feature extraction and intelligent diagnosis for rubbing fault of rotor supported on bull bearings;

Nonlinear dynamic response analysis of unbalance-rubbing coupling faults of rotor-ball bearing-stator coupling system;

Experimental investigation of rotor rubbing faults;

Stability of the Two-span Rotor-bearing System Periodic with Coupling Faults of Crack and Rub-impact;

Diagnoses of coupling fault of crack and rub-impact in rotor systems;

Study on the Coupled Vibration Characteristic of Crack and Rub-impact Rotor;