Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence

To study the application of liquid metal (LM) in the field of practical lubrication, the viscosity of gallium based liquid metal (GBLM) was measured initially, and the relationship between viscosity and temperature was fitted to obtain the viscosity under high temperature. Under the simulated high t...

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Main Authors: Mingyu Xu, Wei Chen
Format: Article
Language:English
Published: MDPI AG 2021-01-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/3/940
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author Mingyu Xu
Wei Chen
author_facet Mingyu Xu
Wei Chen
author_sort Mingyu Xu
collection DOAJ
description To study the application of liquid metal (LM) in the field of practical lubrication, the viscosity of gallium based liquid metal (GBLM) was measured initially, and the relationship between viscosity and temperature was fitted to obtain the viscosity under high temperature. Under the simulated high temperature and vacuum working environment of computed tomography tube (CTT) machines, considering the influence of turbulence, the changes, with eccentricity, of bearing capacity, discharge, friction power consumption, temperature rise, stiffness, and critical mass of the GBLM lubricated V-groove bearing (V-g B) were analyzed. Due to the special structure of V-g B, the coordinate transformation was carried out and the turbulent Reynolds equation was solved by using the finite difference method and the local integral method. The bearing film thickness and pressure distribution under the two coordinate systems were analyzed and compared and the pressure distribution of V-g B under small eccentricity and large eccentricity was studied, respectively. The performance of GBLM lubricated V-g B was studied, which provides theoretical guidance and an analytical method for LM bearing of high-performance CT equipment.
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spelling doaj.art-c862ead7b7254723a37c8444f01b5fe32023-12-03T14:02:57ZengMDPI AGApplied Sciences2076-34172021-01-0111394010.3390/app11030940Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering TurbulenceMingyu Xu0Wei Chen1Key Laboratory of Education Ministry for Modern Design and Roter-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaKey Laboratory of Education Ministry for Modern Design and Roter-Bearing System, Xi’an Jiaotong University, Xi’an 710049, ChinaTo study the application of liquid metal (LM) in the field of practical lubrication, the viscosity of gallium based liquid metal (GBLM) was measured initially, and the relationship between viscosity and temperature was fitted to obtain the viscosity under high temperature. Under the simulated high temperature and vacuum working environment of computed tomography tube (CTT) machines, considering the influence of turbulence, the changes, with eccentricity, of bearing capacity, discharge, friction power consumption, temperature rise, stiffness, and critical mass of the GBLM lubricated V-groove bearing (V-g B) were analyzed. Due to the special structure of V-g B, the coordinate transformation was carried out and the turbulent Reynolds equation was solved by using the finite difference method and the local integral method. The bearing film thickness and pressure distribution under the two coordinate systems were analyzed and compared and the pressure distribution of V-g B under small eccentricity and large eccentricity was studied, respectively. The performance of GBLM lubricated V-g B was studied, which provides theoretical guidance and an analytical method for LM bearing of high-performance CT equipment.https://www.mdpi.com/2076-3417/11/3/940liquid metalV-groove bearingturbulencelubricationstatic and dynamic performance
spellingShingle Mingyu Xu
Wei Chen
Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
Applied Sciences
liquid metal
V-groove bearing
turbulence
lubrication
static and dynamic performance
title Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
title_full Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
title_fullStr Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
title_full_unstemmed Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
title_short Study on the Performance of Liquid Metal Lubricated V-Groove Bearing Considering Turbulence
title_sort study on the performance of liquid metal lubricated v groove bearing considering turbulence
topic liquid metal
V-groove bearing
turbulence
lubrication
static and dynamic performance
url https://www.mdpi.com/2076-3417/11/3/940
work_keys_str_mv AT mingyuxu studyontheperformanceofliquidmetallubricatedvgroovebearingconsideringturbulence
AT weichen studyontheperformanceofliquidmetallubricatedvgroovebearingconsideringturbulence