Article

Application of the finite-element method for determining the stiffness of rolling bearings

Transport Problems : an International Scientific Journal 01/2008;
Source: DOAJ

ABSTRACT The paper presents the results of numerical tests performed with use of the FEM method, the aim of which was determining the stiffness of the outer raceway - rolling element - inner raceway system of bearing 6307. The characterization obtained has been compared with a characterization determined with analytical methods and in the next stage, it will be used to determine the total stiffness of the bearing, variable in working time. Correct modelling of bearing stiffness is one of important conditions for obtaining correct results of simulation calculations. Obtained results will allow the determination of possibilities of limiting vibroactivity of toothed gears, commonly used in transport.

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    ABSTRACT: The paper presents the methodology of fatigue life prediction of radial cylindrical roller bearings, which allows to take into account in the fatigue life calculation geometric parameters of the bearing, including radial clearance and the profiles of rollers. In addition, the methodology takes into account the effect of combined load and misalignment of the bearing rings on the fatigue life. The stress distributions which are necessary to calculate the predicted fatigue life were determined by solving numerically the Boussinesq problem for elastic half-space. The Lundberg and Palmgren model was used for the calculation of the predicted fatigue life of the bearing. The paper focuses on determining the effect of roller profiles on the bearing fatigue life. Pressure distributions obtained by the described methodology were compared to the distributions determined according to the finite element method. The calculated fatigue life of cylindrical roller bearing was compared with the experimental results.
    International Journal of Mechanical Sciences 12/2014; 89:299–310. DOI:10.1016/j.ijmecsci.2014.09.015 · 2.06 Impact Factor

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