FINITE ELEMENT ANALYSIS OF DYNAMIC CHARACTERISTICIN MOTION PROCESS FOR DEEP-GROOVE BALL BEARING

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Journal of Vibration and Shock ›› 2009, Vol. 28 ›› Issue (1) : 118-122.

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FINITE ELEMENT ANALYSIS OF DYNAMIC CHARACTERISTICIN MOTION PROCESS FOR DEEP-GROOVE BALL BEARING

Lin Tengjiao,Rong Qi,Li Runfang,Shao Yimin

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Abstract

Considering the effect of the radial load and rotational speed of bearing, the finite element model for dynamic contact problem of deep-groove ball bearing was established by the software--ANSYS/LS-DYNA. Based on explicit dynamic finite element method, it adopted fully integrated element algorithm to control the hourglass and set the mass scaling time step size to reduce the calculating time. A dynamic contact analysis of the deep-groove ball bearing was made with the same radial load and different rotational speeds imposed on inner ring, and obtained the dynamic response of bearing and the stress distribution of the rolling element during the running process. The maximum and the minimum linear speed of the rolling element occurred at the contact point with the inner ring and the outer ring respectively. The dynamic stress between the rolling element and inner ring was basically the same, while the dynamic stress between the rolling element and outer ring increased with the increasing of the rotational speed. The reaction force fluctuation between the rolling element and the outer ring was bigger than that with inner ring, while the force between the rolling element and the cage was relatively small. The Research showed that ANSYS/LS-DYNA software is a very useful tool for analyzing dynamic contact of rolling bearing in motion process.

Key words

ball bearing / dynamic contact / explicit algorithm / finite element analysis

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Lin Tengjiao;Rong Qi;Li Runfang;Shao Yimin. FINITE ELEMENT ANALYSIS OF DYNAMIC CHARACTERISTICIN MOTION PROCESS FOR DEEP-GROOVE BALL BEARING[J]. Journal of Vibration and Shock, 2009, 28(1): 118-122