Abstract
To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper. The DGB 6205 system model includes the movement of the bearing inner ring in the X and Y directions, the rotation of the cage, the rotation movement of each ball, the revolution movement of each ball and the movement along the radial direction of each ball. Based on the system model, the differential equations of motion of the system are established, and the correctness of the model is verified by experiment. The slip characteristics of the DGB 6205 system are studied by numerical simulation. At the same time, the influence of time-varying load on the vibration characteristics of the system is studied. Then, the sensitivity of system parameters is analyzed. The results show that the sliding speed between the ball and the inner raceway is greater than that between the ball and the outer raceway. The radial vibration response of DGB 6205 system under time-varying load is less than that under constant load. The increase of radial clearance will increase the vibration response of DGB 6205 system.
Highlights
To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper
The sliding effect is an objective phenomenon in the working process of bearing
The sliding effect will increase the temperature at the contact between the rolling element and the raceway, aggravate the bearing wear, and shorten the bearing fatigue life
Summary
To study the vibration characteristics of deep-groove ball bearing, considering the influence of sliding, the dynamic model of the DGB 6205 system is established in this paper. It is important to establish the dynamic model and analyze the vibration characteristics of the bearing, while considering the sliding effect. Tu et al [8] proposed a model to study the sliding behavior of bearing during accelerated operation This model does not consider the influence of bearing radial clearance on the sliding behavior. Shi et al [9] proposed an improved two-dimensional bearing dynamic model to calculate the vibration response of cylindrical roller bearing This model does not consider the influence of bearing sliding effect on vibration response. Lin et al [11] proposed an intelligent bearing diagnosis system and Academic Editor: Vasyl Martsenyuk
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