Modelling deep groove ball bearing localized defects inducing instantaneous angular speed variations

Instantaneous angular speed (IAS) analysis has been presented as an advantageous tool for non-stationary machinery surveillance. The physical analysis indicates that the instantaneous rotating speed variations are caused by torque perturbations. In a previous work, a method for introducing angular p...

Full description

Saved in:
Bibliographic Details
Published in:Tribology international 2016-06, Vol.98, p.270-281
Main Authors: Gomez, Jose L., Bourdon, Adeline, André, Hugo, Rémond, Didier
Format: Article
Language:English
Subjects:
Angle frequency
Angular domain
Angular speed
Bearing modelling
Degrees of freedom
Dynamical systems
Dynamics
Engineering Sciences
Grooves
Instantaneous angular speed
Perturbation methods
Rotating
Torque
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Instantaneous angular speed (IAS) analysis has been presented as an advantageous tool for non-stationary machinery surveillance. The physical analysis indicates that the instantaneous rotating speed variations are caused by torque perturbations. In a previous work, a method for introducing angular periodic disturbances in rotating systems dynamic models was presented. This analysis was based on the introduction of a parametric perturbation applied to the system as an external torque. The current work introduces an original formulation to induce tangential forces to the shaft due to the bearing components dynamics by means of a Hertzian contact roller bearing model. The methodology takes into account rotational bearing races and rolling elements degrees of freedom, making the model suitable for non-stationary conditions. •Instantaneous angular speed variations due to bearing-shaft interaction is modeled.•Tangential and normal bearing forces are connected by rolling resistance phenomena.•Bearing-shaft model accounts for rotational degrees of freedom of balls and races.•IAS perturbation with frequency the BPFO is present when the bearing is healthy.•IAS peak to peak response may increase or decrease in presence of bearing defects.
ISSN:0301-679X
1879-2464
DOI:10.1016/j.triboint.2016.02.032