Bearing's Behavior Modeling for Mechanical Defects' Detection and Diagnosis

Abstract

The monitoring of the bearings makes it possible to avoid disassembling mechanical systems during their preventive controls and to be able to detect the approach of a failure. The paper describes a mechanical model ruling bearing devices' defects. The proposed model concerns defects related to surface waviness, flaking defects as well as those due to unbalanced rotor's effects. The defects' detection is formulated in the frame of vibratory analysis.