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Orthotropic model of rolling bearing in modeling lathe spindle dynamics

Tomaszewski Jan, Dunaj Paweł, Powałka Bartosz, Jasiewicz Marcin

Journal of Theoretical and Applied Mechanics

2022

Vol. 60 nr 1

17--31

This paper presents a method for simplified modeling of bearing nodes of a lathe spindle using the finite element method. The proposed modeling methodology is based on the use of an orthotropic material model, which is used to reflect the stiffness properties of the bearing, both in the radial and axial directions. The modeling results have been experimentally verified. This resulted in full agreement of the mode shapes, an average relative error of the natural frequency values of 1.48% and high agreement of the receptance function.