A Numerical Model to Predict Damaged Bearing Vibrations
- 1 November 2007
- journal article
- research article
- Published by SAGE Publications in Journal of Vibration and Control
- Vol. 13 (11), 1603-1628
- https://doi.org/10.1177/1077546307080040
Abstract
This work aims to develop the theoretical fundamentals and numerical details of new software, dedicated to the simulation of the dynamic behavior of rotating ball bearings in the presence of localized surface defects. In this article, the generation of vibration by a point defect in a rolling element bearing is modeled as a function of the rotation of the bearing, of the distribution of the load in the bearing, of the bearing structure elasticity, of the oil film characteristics, and of the transfer path between the bearing and the transducer. The numerical model is developed with the assumption that the dynamic behavior of the bearing can be represented by a coupled three-degree-of-freedom system, after which the governing equations of the simulation model are solved using computer simulation techniques. A new application, called BEAT (BEAring Toolbox), was developed in order to simulate bearings' vibratory response to the excitations produced by localized defects. By adding a noisy response due to the sliding friction occurring between the moving parts to the impulsive response caused by localized defects, the BEAT software is able to provide realistic results, similar to those produced by a sensor during experimental measurements.This publication has 13 references indexed in Scilit:
- DEMODULATION OF VIBRATION SIGNALS GENERATED BY DEFECTS IN ROLLING ELEMENT BEARINGS USING COMPLEX SHIFTED MORLET WAVELETSMechanical Systems and Signal Processing, 2002
- Vibration based preload estimation in machine tool spindlesInternational Journal of Machine Tools and Manufacture, 2001
- Vibration analysis of distributed-lumped rotor systemsComputer Methods in Applied Mechanics and Engineering, 2000
- MODELLING OF THE SPALLED ROLLING ELEMENT BEARING VIBRATION SIGNAL: AN OVERVIEW AND SOME NEW RESULTSMechanical Systems and Signal Processing, 2000
- An in situ modal-based method for structural dynamic joint parameter identificationProceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2000
- Finite Element Modeling of a Rotor Shaft Rolling Bearings System With Consideration of Bearing NonlinearitiesJournal of Vibration and Control, 1998
- MODELLING, SYNTHESIS AND DYNAMIC ANALYSIS OF COMPLEX FLEXIBLE ROTOR SYSTEMSJournal of Sound and Vibration, 1998
- Modelling of the parameters of acoustic emission under sliding friction of solidsWear, 1997
- Vibration transmission through rolling element bearings, part I: Bearing stiffness formulationJournal of Sound and Vibration, 1990
- Model for the vibration produced by a single point defect in a rolling element bearingJournal of Sound and Vibration, 1984