A theoretical model to predict the effect of localized defect on vibrations associated with ball bearing

• Published in: International journal of mechanical sciences Vol. 52; no. 9; pp. 1193 - 1201
• Main Authors: Patil, M.S., Mathew, Jose, Rajendrakumar, P.K., Desai, Sandeep
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01-09-2010; Elsevier
• Subjects: Acceleration; Applied sciences; Ball bearings; Bearing defects; Bearings, bushings, rolling bearings; Computer programs; Condition monitoring; Contact deformation; Defects; Drives; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Grooves; Industrial metrology. Testing; Mathematical analysis; Mathematical models; Mechanical engineering. Machine design; Physics; Position (location); Solid mechanics; Structural and continuum mechanics; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...); Condition monitoring; Contact deformation; Bearing defects; Vibration; Time frequency domain method; Localized mode; Experimental study; Spring; Modeling; Rolling bearing; Defect characterization; Ball bearing; Hertzian contact; Contact stress; Defect size; Non linear effect; Groove bearing; Monitoring; Bearing cage
• ISSN: 0020-7403; 1879-2162
• DOI: 10.1016/j.ijmecsci.2010.05.005

The paper presents an analytical model for predicting the effect of a localized defect on the ball bearing vibrations. In the analytical formulation, the contacts between the ball and the races are considered as non-linear springs. The contact force is calculated using the Hertzian contact deformation theory. A computer program is developed to simulate the defect on the raceways with the results presented in the time domain and frequency domain. The model yields both the frequency and the acceleration of vibration components of the bearing. The effect of the defect size and its location has been investigated. Numerical results for 6305 deep groove ball bearing have been obtained and discussed. The results obtained from the experiments have also been presented.