An innovative dynamic model for vibration analysis of a flexible roller bearing

2019 ◽  
Vol 135 ◽  
pp. 27-39 ◽  
Author(s):  
Jing Liu ◽  
Changke Tang ◽  
Yimin Shao
Keyword(s):  
Dynamic Model ◽  
Vibration Analysis ◽  
Roller Bearing

scholarly journals Research on method of vibration analysis of rubber tracked vehicle based on dynamic model

2018 ◽  
Vol 6 (1) ◽  
pp. 25-34
Author(s):  
Jinzheng Zhang ◽  
Qi Wang ◽  
Qichun Jin
Keyword(s):  
Dynamic Model ◽  
Vibration Analysis ◽  
Tracked Vehicle

scholarly journals Modeling and Dynamic Analysis of Spherical Roller Bearing with Localized Defects: Analytical Formulation to Calculate Defect Depth and Stiffness

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Behnam Ghalamchi ◽  
Jussi Sopanen ◽  
Aki Mikkola
Keyword(s):  
Dynamic Model ◽  
Contact Stiffness ◽  
Roller Bearing ◽  
Measurement Data ◽  
Contact Forces ◽  
Hertzian Contact ◽  
Radial Clearance ◽  
Outer Race ◽  
Rolling Elements ◽  
Localized Defects

Since spherical roller bearings can carry high load in both axial and radial direction, they are increasingly used in industrial machineries and it is becoming important to understand the dynamic behavior of SRBs, especially when they are affected by internal imperfections. This paper introduces a dynamic model for an SRB that includes an inner and outer race surface defect. The proposed model shows the behavior of the bearing as a function of defect location and size. The new dynamic model describes the contact forces between bearing rolling elements and race surfaces as nonlinear Hertzian contact deformations, taking radial clearance into account. Two defect cases were simulated: an elliptical surface on the inner and outer races. In elliptical surface concavity, it is assumed that roller-to-race-surface contact is continuous as each roller passes over the defect. Contact stiffness in the defect area varies as a function of the defect contact geometry. Compared to measurement data, the results obtained using the simulation are highly accurate.

Fault diagnosis of railway roller bearing based on vibration analysis and information fusion

2012 ◽  
Vol 131 (4) ◽  
pp. 3307-3307 ◽  
Author(s):  
Bin Chen ◽  
Zhaoli Yan ◽  
Xiaobin Cheng ◽  
Wei Liu
Keyword(s):  
Fault Diagnosis ◽  
Information Fusion ◽  
Vibration Analysis ◽  
Roller Bearing

341 Vibration Analysis for Tapered Roller Bearing Fatigue Prevention

2011 ◽  
Vol 2011 (0) ◽  
pp. _341-1_-_341-9_
Author(s):  
Yuya EZAKI ◽  
Hideo TERASAWA ◽  
Takuma WADA
Keyword(s):  
Vibration Analysis ◽  
Roller Bearing ◽  
Tapered Roller Bearing ◽  
Tapered Roller

scholarly journals Sequential Fuzzy Diagnosis Method for Motor Roller Bearing in Variable Operating Conditions Based on Vibration Analysis

Sensors ◽  
2013 ◽  
Vol 13 (6) ◽  
pp. 8013-8041 ◽  
Author(s):  
Ke Li ◽  
Xueliang Ping ◽  
Huaqing Wang ◽  
Peng Chen ◽  
Yi Cao
Keyword(s):  
Vibration Analysis ◽  
Roller Bearing ◽  
Operating Conditions ◽  
Diagnosis Method ◽  
Fuzzy Diagnosis ◽  
Variable Operating Conditions

An Analytical Dynamic Model of a Hollow Cylindrical Roller Bearing

2018 ◽  
Vol 140 (6) ◽  
Author(s):  
Jing Liu ◽  
Yimin Shao
Keyword(s):  
Fatigue Life ◽  
Dynamic Model ◽  
Contact Stiffness ◽  
Roller Bearing ◽  
Great Influence ◽  
Radial Load ◽  
Shaft Speed ◽  
Roller Bearings ◽  
Cylindrical Roller ◽  
Analytical Dynamic

Hollow cylindrical roller bearings (HCRBs) have obtained much attention from design engineers in bearing industries since they can perform better than solid cylindrical roller bearings (SCRBs) in centrifugal forces, contact stiffness, cooling ability, fatigue life, etc. In this study, an analytical dynamic model of a lubricated HCRB is presented to analyze the influences of the radial load, the shaft speed, and the hollowness percentage of the roller on the bearing vibrations, which cannot be formulated by the methods in the reported literature. Both the support stiffness of the shaft and the roller mass are formulated in the presented dynamic model. The hollow hole in the roller is modeled as a uniform one. Numerical results show that the hollowness percentage of the roller has a great influence on the vibrations of the roller and the inner race of the HCRB. Moreover, the vibrations of the components of the HCRB are not only determined by the hollowness percentage of the roller, but also depended on the external radial load and shaft speed. Therefore, during the design process for the hollowness percentage of the roller, the influences of the radial load and the shaft speed on the vibrations of the bearing components should be considered, except for the fatigue life. The results show that this work can give a new dynamic method for analyzing the vibrations of the HCRBs. Moreover, it can give some guidance for the design method for the HCRBs.

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