The rubbing location in rubbing fault diagnosis in a rotor-bearing system was detected using method based on genetic algorithms. A finite element method (FEM) model of the rubbing rotor was developed with the rubbing location, the stator stiffness, the clearance and friction coefficient between rotor and stator, the damping coefficient as a fault parameter and the parameter identification problem is transferred into an optimization problem. The genetic algorithm was used to find the suitable parameters. Th...