Accuracy-improved ultrasonic phase algorithm for measuring lubricant film thickness

Wang, Jianyun; He, Yanbo; Wu, Jiaoyi; Shu, Kun; Zhang, Chuanwei; Gu, Le; Yu, Haide; Wang, Tingjian; Li, Zhen; Wang, Liqin

doi:10.1016/j.ijmecsci.2024.109058

International Journal of Mechanical Sciences

2024

DOI: 10.1016/j.ijmecsci.2024.109058

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Accuracy-improved ultrasonic phase algorithm for measuring lubricant film thickness

Jianyun Wang,

Yanbo He,

Jiaoyi Wu

et al.

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Cited by 2 publications

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An accurate measurement method for center oil film thickness in high-speed roller bearing using ultrasound

Wang,

Li,

Bao

et al. 2024

Tribology International

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An accurate measurement method for center oil film thickness in high-speed roller bearing using ultrasound

Wang,

Li,

Bao

et al. 2024

Tribology International

View full text Add to dashboard Cite

Application Study of Acoustic Reflectivity Based on Phased Array Ultrasonics in Evaluating Lubricating Oil Film Thickness

Shang,

Chen,

Sun

et al. 2024

Coatings

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Bearings play a key role in rolling mills, and the uniformity of their lubricant film directly affects the degree of wear of bearings and the safety of equipment. Due to long-term stress, the lubricant film inside the bearing is not uniformly distributed, resulting in uneven wear between the journal and the shaft tile, which increases the potential safety hazards in production. Traditional disassembly inspection methods are complex and time-consuming. Ultrasonic nondestructive testing technology, which has the advantages of nondestructive and adaptable, has become an effective means of assessing the thickness of the oil film in bearings. In this study, an experimental platform for calibrating the lubricant film thickness in bearings was constructed for the first time, and the acoustic characteristics of different thicknesses of the oil film were measured using ultrasonic detection equipment to verify the accuracy of the simulation process. The experimental results show that after discrete Fourier transform processing, the main features of the frequency channels of the reflected acoustic signals of different thicknesses of the oil film are consistent with the finite element simulation results, and the errors of the oil film thicknesses calculated from the reflection coefficients are within 10% of the set thicknesses, and the measurement ranges cover from 5 μm to 250 μm. Therefore, the above method can realize the accurate measurement of the thicknesses of the oil film in bearings.

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Accuracy-improved ultrasonic phase algorithm for measuring lubricant film thickness

Cited by 2 publications

References 91 publications

An accurate measurement method for center oil film thickness in high-speed roller bearing using ultrasound

An accurate measurement method for center oil film thickness in high-speed roller bearing using ultrasound

Application Study of Acoustic Reflectivity Based on Phased Array Ultrasonics in Evaluating Lubricating Oil Film Thickness

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