Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

Peng, Han; Zhang, Hai; Shangguan, Linjian; Fan, Yisa

doi:10.3390/polym14153041

Cited by 26 publications

(9 citation statements)

References 171 publications

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“…As one of the universal components in mechanical transmission systems, bearings play a significant role in influencing machinery's operational efficiency and expected lifespan. The lubrication state of bearings directly determines whether the machinery can operate in an ideal condition (Peng et al, 2022). Nowadays, a majority of bearing failures are attributed to inappropriate lubrication conditions.…”

Section: Introductionmentioning

confidence: 99%

A comprehensive review of non-destructive methods for bearing lubricating oil film thickness measurement

Shang,

Sun,

Cai

2024

ILT

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Purpose The purpose of this study is to investigate the application of non-destructive testing methods in measuring bearing oil film thickness to ensure that bearings are in a normal lubrication state. The oil film thickness is a crucial parameter reflecting the lubrication status of bearings, directly influencing the operational state of bearing transmission systems. However, it is challenging to accurately measure the oil film thickness under traditional disassembly conditions due to factors such as bearing structure and working conditions. Therefore, there is an urgent need for a nondestructive testing method to measure the oil film thickness and its status. Design/methodology/approach This paper introduces methods for optically, electrically and acoustically measuring the oil film thickness and status of bearings. It discusses the adaptability and measurement accuracy of different bearing oil film measurement methods and the impact of varying measurement conditions on accuracy. In addition, it compares the application scenarios of other techniques and the influence of the environment on detection results. Findings Ultrasonic measurement stands out due to its widespread adaptability, making it suitable for oil film thickness detection in various states and monitoring continuous changes in oil film thickness. Different methods can be selected depending on the measurement environment to compensate for measurement accuracy and enhance detection effectiveness. Originality/value This paper reviews the basic principles and latest applications of optical, electrical and acoustic measurement of oil film thickness and status. It analyzes applicable measurement methods for oil film under different conditions. It discusses the future trends of detection methods, providing possible solutions for bearing oil film thickness detection in complex engineering environments.

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Section: Introductionmentioning

confidence: 99%

A comprehensive review of non-destructive methods for bearing lubricating oil film thickness measurement

Shang,

Sun,

Cai

2024

ILT

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“…During operation, it will endure not only frequent heavy impact loads and non-torque loads, such as yaw moment, wind wheel weight, and its unbalanced load, but also complicated structural coupling deformation. [15] These can easily lead to fatigue spalling of the bearing metal and other failures. [16][17][18][19] The bonding strength of Sn bronze that is directly combined with steel may not be sufficient for the complex working conditions of wind turbines.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Wang

Chen

et al. 2023

Adv Eng Mater

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To address the challenges of liquid metal embrittlement (LME) cracks and low bonding strength at the Sn bronze/steel liquid–solid compound interface, an innovative Sn bronze/Al bronze/steel laminated composite is fabricated using a wire arc additive manufacturing (WAAM) process, which involved introducing an Al bronze interlayer. The microstructure of interlayer and its related interfaces, as well as the mechanical properties of the composites, are investigated. Results show that the microstructure of Al bronze is mainly composed of α‐Cu and β‐Cu3Al. An interdiffused layer with a maximum thickness of 5 μm exists at the Al bronze/steel interface, which plays an important role in interface adaptation. The Sn bronze/Al bronze interface possesses a 30 μm α(Cu–Al–Fe) transition layer, and the continuous transition of α + β → α(Cu–Al–Fe) → α(Cu–Sn) from the base material to the clad layer is realized. No LME cracks are found in the steel after the Al bronze and Sn bronze deposition. The Al bronze/steel and Sn bronze/Al bronze interfaces exhibit strong bonding strengths of 395 and 361 MPa, respectively.

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“…Soni (2021) established the Navier–Stokes equation and continuity equation to illustrate the parameters that characterize the fluid flow field for the noncircular FRB. However, there still exist some tricky problems such as dramatic temperature rise (Shi et al , 2023), lubrication failure, et al (Peng et al , 2022).…”

Section: Introductionmentioning

confidence: 99%

Influence of floating ring elastic deformation on ring equilibrium and minimum film thickness for a hydrodynamic/hydrostatic floating ring bearing

Yang,

Hou,

et al. 2023

ILT

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Purpose The floating ring generates elastic deformation as the film pressure for high-speed floating ring bearings (FRBs). The purpose of this study is to investigate the influence of ring elastic deformation on the performance of a hydrodynamic/hydrostatic FRB, including floating ring equilibrium and minimum film thickness. Design/methodology/approach The finite element method and finite difference method are used to solve thermohydrodynamic (THD) lubrication models, including the Reynolds equation, energy equation and temperature–viscosity equation. The deformation matrix method is applied to solve the elastic deformation equation, and then the deformation distribution, floating ring equilibrium and minimum film thickness are investigated. The maximum pressure is compared with the published article to verify the mathematical models. Findings The deformation value increases with the growth of shaft speed; owing to elastic deformation on the film reaction force and friction moment, the ring achieves equilibrium at a new position, and the inner eccentricity increases while the ring-shaft speed ratio declines. The minimum film thickness declines with the growth of inlet temperature, and the outer film tends to rupture considering elastic deformation at a higher temperature. Originality/value The floating ring elastic deformation is coupled with the THD lubrication equations to study ring deformation on the hydrodynamic/hydrostatic FRB lubrication mechanism. The elastic deformation of floating ring should be considered to improve analysis accuracy for FRBs. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2023-0139/

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Review of Tribological Failure Analysis and Lubrication Technology Research of Wind Power Bearings

Cited by 26 publications

References 171 publications

A comprehensive review of non-destructive methods for bearing lubricating oil film thickness measurement

A comprehensive review of non-destructive methods for bearing lubricating oil film thickness measurement

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Influence of floating ring elastic deformation on ring equilibrium and minimum film thickness for a hydrodynamic/hydrostatic floating ring bearing

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