An integrated model to predict vibration response of rolling bearing to localized defect and grd assessment
Yuan Xing1; Zhu Yong-sheng1; Hong Jun2; Zhan You-yun1
1. Key Laboratory of Education Ministry for Modern Design and Rotor-bearing System, Xi'an Jiao tong University;2. State Key Laboratory for Manufacturing System, Xi'an Jiao tong University
Abstract：In the previous bearing models, vibration characteristics have a larger error compared with the practical project because of neglecting the impact of pedestal and rolling element. A novel prediction model has been developed to obtain the vibration response due to localized defect of bearing system in order to solve the problem. In the analytical formulation, the contacts between the rolling elements and the races are considered as non-linear springs. The contact force is calculated using the Hertzian contact deformation theory and the bearing system is modeled as multi-degrees-of-freedom system. The implicit type numerical integration technique Runge–Kutta method is used to solve the non-linear differential equations iteratively. A computer program is developed to simulate surface defects of the components. Then grey incidence degree (GRD) is employed to investigate the Condition assessment based on hybrid features obtained from the novel model. The new technique is experimentally evaluated using vibration signals measured on rolling bearings system that contain localized defects, and good results were obtained that verified the validity and effectiveness of this paper.
袁幸;朱永生;洪军;张优云. 滚动轴承局部损伤的完备预测模型与GID评估[J]. , 2011, 30(9): 35-39.
Yuan Xing;Zhu Yong-sheng;Hong Jun;Zhan You-yun. An integrated model to predict vibration response of rolling bearing to localized defect and grd assessment. , 2011, 30(9): 35-39.
2011, Vol. 30 
