Experimental study of compound texture effect on acoustic performance for lubricated textured surfaces

Meng, Fanzhi; Yu, Haiyang; Gui, Chao; Chen, Lin

doi:10.1016/j.triboint.2018.12.036

Cited by 29 publications

(19 citation statements)

References 22 publications

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“…Their main results stated that the optimal dimple compound can reduce noise levels and increase load-carrying capacity and frictional forces. This result was also experimentally verified by the same author [8]. Wang et al [9] revealed that the provision of a texture in the form of a convex-concave spherical texture configuration on the bearing surface was able to significantly reduce the friction coefficient.…”

Section: Introductionsupporting

confidence: 53%

CFD Analysis of Journal Bearing with a Heterogeneous Rough/Smooth Surface

et al. 2021

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In the present study, a computational investigation into acoustic and tribological performances in journal bearings is presented. A heterogeneous pattern, in which a rough surface is engineered in certain regions and is absent in others, is employed to the bearing surface. The roughness is assumed to follow the sand-grain roughness model, while the bearing noise is solved based on broadband noise source theory. Three types of heterogeneous rough/smooth journal bearings exhibiting different placement and number of the rough zone are evaluated at different combinations of eccentricity ratio using the CFD method. Numerical results show that the heterogeneous rough/smooth bearings can supply lower noise and larger load-carrying capacity in comparison with conventional bearings. Moreover, the effect on the friction force is also discussed.

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Section: Introductionsupporting

confidence: 53%

CFD Analysis of Journal Bearing with a Heterogeneous Rough/Smooth Surface

et al. 2021

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“…[19][20][21] However, the compound texture effect on the dynamic characteristic of the journal bearing has not been studied to date. Since the compound texture shows positive effects on static performances of the journal bearing, [16][17][18][19][20][21] it is essential to explore its effect on the dynamic characteristic of the journal bearing. In the present work, the investigation of the compound texture effect on the dynamic characteristics of the journal bearing was conducted under the consideration of the elastic deformation and cavitation effects.…”

Section: Introductionmentioning

confidence: 99%

Dynamic characteristics of compound textured journal bearing

Meng

Zhang

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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An investigation of the compound texture effect on the dynamic characteristics of the journal bearing film is conducted. In this work, eight dynamic coefficients of the compound textured journal bearing and critical speed of the rotor supported by textured bearings are obtained and compared. Meanwhile, the elastic deformation effect of the bearing and rotor is obtained using the continuous convolution fast Fourier transform (CC-FFT) method. It is found that the reasonably arranged compound texture brings out an obvious increment in the direct stiffness coefficients and damping coefficients compared with the simple one, which results in the high critical speed of the bearing-rotor system. The above changes are close to the texture distribution, second-layered texture length, and width-length ratios of the compound texture. Moreover, there exists a critical compound texture depth to improve the critical speed of the bearing-rotor system.

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“…Later, Bouaziz et al [25] observed that the sound pressure is markedly influenced by the angular velocity of the journal. In many works of recent literature, Meng et al [26][27][28][29] presented a deep investigation of the acoustic performance of journal bearing in addition to the tribological performance dealing with the positive effect of the compound texture. Their main finding revealed that the well-chosen compound dimple (i.e., its depth, width, and position in the optimal pattern) can reduce the bearing noise and improve the load support compared to the smooth bearing.…”

Section: Introductionmentioning

confidence: 99%

Elastohydrodynamic behavior analysis on water-lubricated journal bearing: a study of acoustic and tribological performance based on CFD-FSI approach

Tauviqirrahman

Jamari

Bagir

et al. 2021

J Braz. Soc. Mech. Sci. Eng.

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Most of the studies with respect to the use of water-lubricated journal bearing are mainly concerned with tribological performance, whereas few studies explore the noise characteristics of such bearing. In this study, the tribological and acoustic behavior of water-lubricated journal bearing is studied using a rigorous program containing combined CFD and two-way FSI procedures for simulating elastohydrodynamic simulation for a range of different bearing materials. To model cavitation in the bearing, the multiphase flow mixture model is employed, while acoustical properties are investigated through broadband noise source models. The numerical results demonstrate that the bearing deformation has a great effect on the tribological characteristics of water-lubricated journal bearing, and this effect cannot be ignored, especially in the case of bearing material with a low elasticity modulus. The results also indicate that the bearing noise is weakly sensitive to the bearing material employed. Furthermore, the effect of operating conditions such as rotational speed and eccentricity ratio on the acoustic and tribological indices are also discussed in detail.

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Experimental study of compound texture effect on acoustic performance for lubricated textured surfaces

Cited by 29 publications

References 22 publications

CFD Analysis of Journal Bearing with a Heterogeneous Rough/Smooth Surface

CFD Analysis of Journal Bearing with a Heterogeneous Rough/Smooth Surface

Dynamic characteristics of compound textured journal bearing

Elastohydrodynamic behavior analysis on water-lubricated journal bearing: a study of acoustic and tribological performance based on CFD-FSI approach

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