Local stress analysis of a defective rolling bearing using an explicit dynamic method

Zhang, Zhinan; Ding, Weimin; Ma, Huifang

doi:10.1177/1687814016679909

Cited by 6 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Yin et al studied the Mises stress of ball bearings with point defects and the non-linear dynamic characteristics of ball bearings with defects. To the best of our knowledge, little research has been done to assess the stress levels in the defect zone within rolling bearings [12], [13]. Based on this fact, static stress testing on bearings can be assumed as an effort to further explore and deepen the impact of loading on bearings in terms of safety factors, life, total deformation, and equivalent stress of bearings.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Static Stress on Bearing 6207: Analysis Based on Manufacturer Brands and Its Impact on System Performance

Dwilestari,

Feriyanto

2023

JAITA

View full text Add to dashboard Cite

This research provides a thorough examination of ball bearings from various brands, with a specific focus on 6207 type bearings, using ANSYS simulation software. The bearings under study are sourced from five different brands: KOYO, NSK, Nachi, NTN, and SKF. The study includes a series of tests, with a primary emphasis on assessing static stress when subjected to a 1000 MPa pressure load. Key parameters evaluated in these tests encompass total deformation, equivalent stress, bearing life, and safety factor. The findings from the analyses reveal significant differences among the tested bearings. Notably, KOYO brand bearings demonstrate superior performance compared to their counterparts, characterized by reduced levels of deformation and stress. However, it's important to acknowledge that each brand of bearings possesses distinctive characteristics, comprising both strengths and weaknesses, contingent upon the specific application context. In conclusion, this study underscores the critical importance of thorough testing and analysis in the process of selecting bearings tailored to precise operational requirements. The research highlights the exceptional performance of KOYO bearings under the examined conditions, while also emphasizing the necessity for a nuanced decision- making process that takes into account diverse user preferences and varied application demands.

show abstract

Section: Introductionmentioning

confidence: 99%

Comparative Study of Static Stress on Bearing 6207: Analysis Based on Manufacturer Brands and Its Impact on System Performance

Dwilestari,

Feriyanto

2023

JAITA

View full text Add to dashboard Cite

show abstract

“…As a result, a lot of previous research work has studied the complex internal dynamic characteristics of bearings with fault. [15][16][17][18][19][20][21][22][23] For instance, Singh et al 15,19 analyzed the dynamic contact forces between the rolling elements and the raceways of rolling bearing and the generation of vibration considering the localized fault. Ahmadi et al 16 investigated the contact forces and vibration responses generated in defective rolling element bearings by considering the mass of the rolling elements.…”

Section: Introductionmentioning

confidence: 99%

“…Rafsanjani et al 20 predicted the stability and dynamic responses of rolling bearings with a localized fault on the raceways and rolling elements. Zhang et al 21 studied the localized stress in the defect zone of the rolling bearings when the rolling elements pass through the defect, and investigated the effects of radial load, rotation speed, and initial defect size on the stress level. Patel and Upadhyay 22 studied the nonlinear vibrations of a rolling element bearing system with a localized fault on the raceways and the contact relationship between the defect and the rolling element.…”

Section: Introductionmentioning

confidence: 99%

Contact characteristic and vibration mechanism of rolling element bearing in the process of fault evolution

Yang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part K:

View full text Add to dashboard Cite

The vibration response of rolling element bearing has a close relation with its fault. An accurate evaluation of the bearing vibration response is essential to the bearing fault diagnosis. At present, most bearing dynamics models are built based on rigid assumptions, which may not faithfully reveal the dynamic characteristics of bearing in the presence of fault. Moreover, previous similar works mainly focus on the fault with a specified size without considering the varying contact characteristics as the fault evolves. This paper developed an explicit dynamics finite element model for the bearing with three types of raceway faults considering the flexibility of each bearing component in order to accurately study the contact characteristic and vibration mechanism of defective bearings in the process of fault evolution. The developed model is validated by comparing its simulation results with both analytical and experimental results. The dynamic contact patterns between the rolling elements and the fault, the additional displacement due to the fault and the faulty characteristics within the bearing vibration signal during the fault evolution process are investigated. The analysis results from this work can provide practitioners an in-depth understanding towards the internal contact characteristics with the existence of raceway fault and theoretical basis for rolling bearing fault diagnosis.

show abstract

“…Liu and Shao 26 presented a 2D dynamic FE model to simulate the influences of the spall edge shape and sizes on the contact forces and the vibrations of a roller bearing. Zhang et al 27 established a 3D dynamic FE model to simulate the influences of the radial load, the shaft speed, and the fault sizes on the contact stress and pressure in the fault zone for a ball bearing. Bogard et al 28 presented a 3D static FE model to obtain the optimal housing shape and simulate the influence of the housing shape on the stress of the bearing structure.…”

Section: Introductionmentioning

confidence: 99%

“…In the above FE models, some works [17][18][19]23,24,28 applied the static FE method to simulate the contact stress and fatigue life of the rolling element-raceway contact, which cannot formulate the bearing vibrations. Moreover, some works [20][21][22]27 used the dynamic FE models to simulate the contact forces, the contact stresses, and the vibrations of the roller and ball bearings. However, these dynamic models used a rigid raceway model, which caused the abnormal amplitudes of the bearing vibrations.…”

Section: Introductionmentioning

confidence: 99%

The influence of the raceway thickness on the dynamic performances of a roller bearing

Liu

Shao

2017

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

Dynamic performances of roller bearings are greatly affected by their geometries. A clear understanding of the influences of the bearing geometries on the dynamic performances is very helpful for vibration control of the machinery system. A dynamic finite element model of a roller bearing is presented. The influence of the raceway thickness of the outer race on the component stress, contact forces, and vibrations of the roller bearing is studied, which has not yet been investigated in previous work. All components of the roller bearing are modeled as elastic bodies. The waveforms of the contact force and the acceleration of the bearings considering different thickness percentages are compared, as well as the acceleration statistics and component stresses. The simulation results show that the raceway thickness of the outer race has a great influence on the stress, the contact force, and the vibrations of the bearing. It seems that an outer race with a suitable raceway thickness can be useful for decreasing the contact force and vibrations of the roller bearings. The presented results can give some guidance for the roller bearing design and geometry optimization.

show abstract

Local stress analysis of a defective rolling bearing using an explicit dynamic method

Cited by 6 publications

References 21 publications

Comparative Study of Static Stress on Bearing 6207: Analysis Based on Manufacturer Brands and Its Impact on System Performance

Comparative Study of Static Stress on Bearing 6207: Analysis Based on Manufacturer Brands and Its Impact on System Performance

Contact characteristic and vibration mechanism of rolling element bearing in the process of fault evolution

The influence of the raceway thickness on the dynamic performances of a roller bearing

Contact Info

Product

Resources

About