NDLI: An experimental testing of a simplified model of a ball bearing: stiffness calculation and defect simulation

Content Provider	Springer Nature Link
Author	Dougdag, M. Ouali, M. Boucherit, H. Titouche, N. E. Djaoui, M.
Copyright Year	2011
Abstract	This paper presents an experimental verification of a simplified model of a nonlinear stiffness ball bearing in both static and dynamic modes and testing its capabilities to simulate accurately fault’ effects.Analytical model was developed using a different method comparatively to classical ones; the ball’s deformation is obtained without using Palmgren’s method. Modeling considers the balls scrolling in the cage and the effect of the load-rotating vector. Obtained formula allows introduction of defects characteristics under parametric forms.These modifications were done in order to realize two objectives. The first one is to ameliorate ball bearings stiffness computing and to improve a more realistic simulation of dynamic behavior of a defective ball bearing. The second is to use obtained results in design and maintenance domain.To verify experimentally the developed model of rigidity in both static and dynamic conditions, a number of compression tests were done on the ball bearings. This requires the specimen grips system adaptation of a mechanical universal testing machine to receive the non-usual specimen. A number of experimental simulations of the main faults are done on a testing bench to verify the defect model.Results of defects simulation and model behavior in statics and dynamics are compared to experimental results. The developed model gives an acceptable similarity and it proves its simplicity and robustness. Both results were acceptable.
Starting Page	335
Ending Page	354
Page Count	20
File Format	PDF
ISSN	00256455
Journal	Meccanica
Volume Number	47
Issue Number	2
e-ISSN	15729648
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-17
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Experimental testing Modeling Fault’s simulation Radial stiffness Mechanical testing Testing bench Design Maintenance Civil Engineering Mechanics Mechanical Engineering Automotive Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Condensed Matter Physics Mechanical Engineering

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