Dynamic simulation of a cylindrical roller bearing with a local defect by combining finite element and lumped parameter models

2021 ◽  
Author(s):  
Ali Safian ◽  
Hongsheng Zhang ◽  
Xihui Liang ◽  
Nan Wu
Keyword(s):  
Finite Element ◽  
Dynamic Simulation ◽  
Roller Bearing ◽  
Local Defect ◽  
Lumped Parameter ◽  
Lumped Parameter Models ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

Dynamic Finite Element Analysis of a Cylindrical Roller Bearing

2011 ◽  
Vol 143-144 ◽  
pp. 437-442
Author(s):  
Bao Hong Tong ◽  
Yin Liu ◽  
Xiao Qian Sun ◽  
Xin Ming Cheng
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Roller Bearing ◽  
Element Analysis ◽  
Dynamic Finite Element ◽  
Dynamic Finite Element Analysis ◽  
Simulation Results ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

A dynamic finite element analysis model for cylindrical roller bearing is developed, and the complex stress distribution and dynamic contacting nature of the bearing are investigated carefully based on ANSYS/LS-DYNA. Numerical simulation results show that the stress would be bigger when the element contacting with the inner or outer ring than at other times, and the biggest stress would appear near the area that roller contacting with the inner ring. Phenomenon of stress concentration on the roller is found to be very obvious during the operating process of the bearing system. The stress distributions of different elements are uneven on the same side surface of roller in its axis direction. Numerical simulation results can give useful references for the design and analysis of rolling bearing.

Verschleißsimulation grenz- und mischreibungsbehafteter Wälzkontakte

2021 ◽  
Vol 68 (5) ◽  
pp. 14-23
Author(s):  
Andreas Winkler ◽  
Marcel Bartz ◽  
Sandro Wartzack
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Simulation Model ◽  
Boundary Lubrication ◽  
Roller Bearing ◽  
The Finite Element Method ◽  
Lubrication Regime ◽  
Wear Calculation ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

This contribution presents an approach for the numerical wear calculation of rolling/sliding-contacts. The finite element method based simulation model of Winkler [1] is extended to include contacts subject to boundary lubrication in addition to contacts subject to mixed lubrication. Using the example of an axial cylindrical roller bearing and two load cases, wear-modeling results of the mixed and boundary lubrication regime are illustrated.

Distribution characteristics of stress and displacement of rings of cylindrical roller bearing

2018 ◽  
Vol 233 (12) ◽  
pp. 4348-4358 ◽  
Author(s):  
Xu Hao ◽  
Xinxin Gu ◽  
Xianwen Zhou ◽  
Xin Liao ◽  
Qingkai Han
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Roller Bearing ◽  
Mesh Size ◽  
Element Model ◽  
Housing System ◽  
Bearing Stiffness ◽  
Stiffness Characteristics ◽  
Cylindrical Roller Bearing ◽  
Cylindrical Roller

In this paper, the developed finite element model of the shaft-cylindrical roller bearing–bearing housing system is established considering the temperature effect and clearance change. The displacement, raceway stress, and bearing stiffness characteristics of the inner and outer rings of the bearing are systematically investigated. The proposed finite element model is validated through adjusting mesh size of the bearing and the comparison of the elastic deformation of the bearing with the experiment. The influence of load, clearance, and temperature expansion on the displacement distribution of the inner and outer rings of the bearing, raceway stress, and stiffness characteristics are all discussed. The obtained results indicate that an appropriate selection of thermal expansion stress can obtain desirable working ambient temperature of the bearing under different clearances, which can serve as an efficient tool in the design of bearing parameters.

scholarly journals Safety Characteristic Evaluation of Cage in Cylindrical Roller Bearing at the Stage of Start-Up and Stop

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Zhang Wenhu ◽  
Wu Zhimin ◽  
Deng Sier ◽  
Zhang Song ◽  
Tian Heng ◽  
...  
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Structural Parameters ◽  
Roller Bearing ◽  
Element Model ◽  
Main Shaft ◽  
Start Up ◽  
Cylindrical Roller Bearing ◽  
Safety Characteristic ◽  
Cylindrical Roller

The dynamics model of cylindrical roller bearing (CRB) in aeroengine main shaft was promoted and solved by Hilber–Hughes–Taylor (HHT) integer algorithm with variable step in combination with symmetric multiprocessing (SMP) parallel solving technology, and a finite element model of roller to cage contact was built. The dynamic characteristics of CRB at the stage of start-up and stop were analyzed firstly, and then, the collision forces between rollers and cage were used as the boundary conditions of the finite element model to discuss the influences of working conditions, structural parameters, and materials on the stress distribution and safety characteristic of cage at the stage of start-up and stop. The findings will provide the theoretical basis for the designing of CRB in aeroengine main shaft.

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