Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
NUMERICAL EVALUATION OF STRESS CONCENTRATION FACTOR FOR DIFFERENT DESIGNS OF SHAFT SHOULDER APPLIED TO RADIAL BEARINGS HOUSINGS
Submission Author:
Guilherme Cesar do Amaral Dias , PR
Co-Authors:
Guilherme Cesar do Amaral Dias, Joao Luiz do Vale, Jéderson da Siva
Presenter: Guilherme Cesar do Amaral Dias
doi://10.26678/ABCM.COBEM2019.COB2019-0196
Abstract
This article proposes a methodology for a numerical evaluation of stress concentration factors in shafts with respect to the application of radial bearings under three conditions of pure load: traction, bending and torsion. In this case, the simple fillet bearing shoulder is compared to two designs established in technical standards. A numerical model was defined and carried out in Ansys® software. Through the comparison with data provided in literature, a validation of the numerical model for the simple fillet shoulder was performed. A planning of the numerical experiment is described in order to meet a range of geometric parameters linked to data provided in radial bearing catalogs. A comparison between the simple fillet concentration factors versus standardized designs is provided by defining a percentual measure. The results of numerical validation experiments demonstrated the effectiveness of the proposed methodology. Additionally, it is shown that the use of the simple fillet presents, in some cases, lower stress concentration factors than those generated by the designs proposed by the standard.
Keywords
stress concentration, Shaft shoulder, Radial bearings, Finite element analyses
