TY  - JOUR
T1  - The Calculation of Ball Bearing Nonlinear Stiffness Theoretical and Experimental Study with Comparisons
AU - , Dougdag Mourad AU - , N.E. Titouche AU - , M. Djaoui AU - , Ouali Mohammed 
JO  - Journal of Engineering and Applied Sciences
VL  - 3
IS  - 11
SP  - 872
EP  - 883
PY  - 2008
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2008.872.883
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2008.872.883
KW  - Modelling
KW  -ball bearings
KW  -stiffness
KW  -experience
KW  -mechanical testing
KW  -balls scrolling
KW  -design
KW  -maintenance
AB  - This study presents a theoretical and an experimental nonlinear stiffness ball bearing study in static and dynamic mode. The theoretical study allows us to build an analytical model where the construction is based on different approaches from the traditional ones. Firstly, the developed model is based on other forms to determine ball’s deformation. Secondly, it describes the nonlinear dynamic behaviour of the ball bearings by considering the balls scrolling in the cage and the effect of rotating vector load. These modifications were done hoping to ameliorate ball bearings stiffness computing and having positives impacts on design and maintenance domain of rotating machines. To verify experimentally the developed model, in static and dynamic conditions, some numbers of compression tests were done on the ball bearings, in sight to measuring experimentally the rigidity. This requires the mooring system adaptation of a mechanical universal testing machine to receive the ball bearing specimen. Experimental results where obtained under imposed load mode, analysed and confronted to the theoretical model ones. Finally, it was also a proceeding to the confrontation of the obtained results to those of the known models.
ER  -