Effects of manufacturing errors and micro-groove surfaces on the static and dynamic characteristics of water-lubricated bearings

Li, Peng; Li, Jiayu; Shi, Zhanqun; Zhang, Hao; Xiao, Sen; Li, Xin; Gu, Fengshou

doi:10.1088/1402-4896/ace93f

Cited by 3 publications

(3 citation statements)

References 46 publications

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“…Static and dynamic pressure thrust bearings offer numerous advantages, including robust axial loading capacity, high operational accuracy, exceptional vibration absorption performance and easy maintenance (Yu et al, 2017;Li et al, 2023a). Consequently, they are extensively used in various fields, including the automotive industry, precision machine tools and ocean engineering (Li et al, 2023b;Lu and Tian, 2023;Ueda et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Effects of differently shaped textures on the tribological properties of static and dynamic pressure thrust bearings and multiobjective optimization

Yu,

Shi,

Gao

et al. 2024

ILT

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Purpose The purpose of this study is to evaluate three types of textures designed to enhance the tribological performance of static and dynamic pressure thrust bearings. Design/methodology/approach To explore the effects of different types of textures on tribological performance, the Reynolds equation is modified using lubrication theory and computational fluid dynamics methods while considering the influence of cavitation and turbulence on the physical field. In addition, the tribological performance is optimized through an improved selection algorithm based on Pareto envelope (PESA). Findings The results indicate that textured thrust bearings exhibit superior tribological performance compared to untextured ones. The circular texture outperforms other textures in terms of load-bearing and friction performance, with improvements of approximately 28.8% and 18.9%, respectively. In addition, the triangular texture exhibits the most significant temperature improvement, with a reduction of approximately 1.93%. Originality/value The study proposes three types of textures and evaluates the friction performance of thrust bearings by modifying the Reynolds equation. In addition, the optimal texture design is determined using an improved selection algorithm based on PESA.

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Section: Introductionmentioning

confidence: 99%

Effects of differently shaped textures on the tribological properties of static and dynamic pressure thrust bearings and multiobjective optimization

Yu,

Shi,

Gao

et al. 2024

ILT

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“…Guo et al [13] carried out singleside modification of eccentric sliding bearings and analyzed through numerical calculations to conclude that the reasonable design of single-side modification is beneficial to increase the minimum oil film thickness at the edge of the sliding bearing, reduce the rough contact, and improve the wear resistance. Li [14] established a hydrodynamic lubrication bearing model considering manufacturing errors and micro-grooves. The results indicated that an increase in the eccentricity ratio directly affected the variation of the bearing's static characteristics.…”

Section: Introductionmentioning

confidence: 99%

Wear analysis of rolling bearing contact surfaces based on finite element method

Li,

Tan,

Tao

et al. 2023

Phys. Scr.

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Wear leads to the roughening of bearing surfaces, increased internal clearances, decreased rotational precision, and amplified vibration and noise, ultimately causing the bearing to fail to meet specified performance criteria. This study employs the quasi-static analysis method to examine bearing sliding behavior. Based on the Archard wear model and Hertz contact theory, a computational model for wear depth in lubricated conditions is established for rolling ball bearings, accounting for both the rolling and sliding of the rolling elements. The distribution law of load and wear coefficient along the raceway circumference are analyzed, along with the characteristics of stress and sliding velocity in the contact region. The study investigates the impact of rotational speed, load, surface roughness, and raceway curvature coefficient on the wear coefficient, wear depth, and minimum oil film thickness. Furthermore, sensitivity analysis is conducted on the parameters of the wear depth model. Finite element analysis, utilizing ANSYS Workbench, is employed to study the evolution of surface wear on the raceway of deep groove ball bearings and explore the dynamic relationship between contact stress and wear depth. These findings offer important theoretical guidance for the design, selection, and maintenance of rolling bearings.

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“…Currently, many scholars have conducted in-depth research in the fields of manufacturing errors and the lubrication of inclined bearings [5]. Li et al [6] studied the effects of manufacturing errors and micro grooves on the static, dynamic, and stability characteristics of water-lubricated radial bearings (WLJBs). The mathematical expressions for manufacturing errors and surface micro grooves were given, and the steady-state and non-stationary Reynolds equations were calculated using the linear perturbation method and the finite difference technique.…”

Section: Introductionmentioning

confidence: 99%

Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors

Yang,

Zhu,

Fan

et al. 2023

Lubricants

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The installation quality of a propulsion shaft system directly affects the lubrication statuses of the bearings. The quality of the shaft system installation not only affects the progress of ship construction, but also the safety, stability, and reliability of the shaft system. This article takes sliding bearings in ship shafting as the research object and establishes a hydrodynamic lubrication model of sliding bearings while considering installation errors to address the issue of installation errors of ship stern bearings. The finite difference method and super-relaxation iteration method are used to solve the problem, and the influences of bearing installation errors on bearing lubrication characteristic parameters are explored. An installation error of the stern bearing can lead to an increase in the film pressure at both ends of the stern bearing in the axial direction, leading to a decrease in the lubrication status of the bearing. Poor lubrication and wear faults of the stern bearing are prone to occur at both ends of the stern bearing. As the installation error of the stern bearing increases, the minimum film thickness of the stern bearing decreases and the maximum film pressure increases, and as the installation error increases, the sensitivity of the aft stern bearing to the vertical installation error is greater than that of the lateral installation error, and the sensitivity of the fore stern bearing to the lateral installation error is greater than that of the vertical installation error. The sensitivity of the lateral and vertical film forces at both ends of the aft stern bearing and the fore stern bearing is greater than that of the middle part; the installation error of bearings has a significant impact on the lubrication characteristics of bearings.

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Effects of manufacturing errors and micro-groove surfaces on the static and dynamic characteristics of water-lubricated bearings

Cited by 3 publications

References 46 publications

Effects of differently shaped textures on the tribological properties of static and dynamic pressure thrust bearings and multiobjective optimization

Effects of differently shaped textures on the tribological properties of static and dynamic pressure thrust bearings and multiobjective optimization

Wear analysis of rolling bearing contact surfaces based on finite element method

Research on Lubrication Characteristics of Ship Stern Bearings Considering Bearing Installation Errors

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