Study on lubrication performance of hydrostatic clearance oil film considering multi-factor coupling

Yu, Xiaodong; Feng, Yanan; Gao, Weicheng; Shi, Guangqiang; Li, Shihao; Chen, Minmin; Zhang, Ruiming; Wang, Junfeng; Jia, Wentao; Jiao, Jianhua; Jiang, Hui

doi:10.1016/j.ijhydene.2022.09.151

Cited by 10 publications

(5 citation statements)

References 28 publications

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“…Yu XD established a three-dimensional simulation model of oil film and friction pair of hydrostatic thrust bearing under high-speed and heavy-load conditions and analyzed the oil film pressure field, temperature field, deformation field of bearing friction pair, and oil film thickness field. The results show that the load causes the turntable and base to undergo inward elastic deformation, and the temperature causes the turntable and base to undergo outward thermal deformation [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Research on the dynamic pressure effect of clearance oil film of stepped hydrostatic thrust bearing

Feng

Jiang

et al. 2023

Preprint

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The dynamic pressure effect of the clearance oil film of stepped hydrostatic thrust bearing is studied by taking the double rectangular cavity oil cushion as an example. According to the hydrodynamics theory, the average dynamic pressure of lubricating oil film in different clearance height regions is theoretically deduced and calculated, and the dynamic pressure effect of the clearance oil film in the stepped hydrostatic thrust bearing is studied through the combination of theoretical calculation, simulation, and experimental verification. It is found that the theoretical value of the average dynamic pressure of the clearance oil film and the rotational speed show a linear growth relationship with a slope of 275.2. The simulated value of the average dynamic pressure and the rotational speed follow the growth law of the Fourier 1 model. The experimental value of the average dynamic pressure is between the theoretical value and the simulated value, which is basically not affected by the load. In the speed range of 0r/min-200r/min, compared with the viscosity of lubricating oil, the speed is the main factor affecting the dynamic pressure of the oil film of the stepped hydrostatic thrust bearing. The dynamic pressure value of the clearance oil film increases in a stepped fashion along the radial direction of the double rectangular cavity oil cushion. The dynamic pressure value has an obvious upward trend at the junction of the circumferential right oil cavity and the sealing edge and then decreases to 0 after reaching the peak value.

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Section: Introductionmentioning

confidence: 99%

Research on the dynamic pressure effect of clearance oil film of stepped hydrostatic thrust bearing

Feng

Jiang

et al. 2023

Preprint

Self Cite

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“…Liu et al [23,24] computed the load capacity of the oil film following the tilt of the turntable and developed a method for ascertaining the maximum rotational speed of the tilted turntable. By employing a combination of simulation and experimentation, Yu et al [25,26] investigated the impact of multi-factor coupling on the lubrication performance of the oil film and established a correlation between the speed and load. Zhang et al [27] examined the tribological characteristics of the lubricating film on a hydrostatic turntable under a constant cutting speed, revealing a notable influence of the load on the performance of the oil film.…”

Section: Introductionmentioning

confidence: 99%

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Ma,

Liu,

Yang

et al. 2024

Mathematics

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This study aims to analyze the impact of uniform and eccentric load conditions on the performance of internal feedback hydrostatic thrust and journal bearing. Two distinct models are established: a three-degrees-of-freedom uniform load model and a five-degrees-of-freedom eccentric load model. The support stiffness, overturning stiffness, and flow rate for both thrust and journal bearings are calculated. Additionally, numerical analysis is conducted to examine the influence of oil film thickness, inlet pressure, and restrictor size on the operational characteristics of the bearings, revealing the interplay between an eccentric load and journal bearing speed. The validity of the theoretical algorithm is verified through finite element simulation. The research outcomes hold significant guiding implications for the design and application of internal feedback hydrostatic bearings.

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“…Zhang et al (2018) used Fourier analysis to decompose the geometrical errors of the guideway and table into various frequency harmonics, integrating these with the cubic equivalence of oil film thickness to model hydrostatic guideway motion errors. Additionally, Yu et al (2023) identified thermal characteristics, specifically the thermal response of the support reaction force and the rise in hydrostatic oil temperature, as critical determinants of oil film contact surface errors. Shamoto et al (2001) used finite element method (FEM) to elucidate the interaction between oil film reaction forces and geometric errors on the oil film contact surface.…”

Section: Introductionmentioning

confidence: 99%

Influence of multisource errors of oil film contact surface on motion accuracy of hydrostatic guideway

He,

Liang,

et al. 2024

ILT

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Purpose This study aims to explore the impact of multisource deformation errors on the oil film contact surface, which arise from manufacturing, assembly, oil pressure and thermal influences, on the motion accuracy of hydrostatic guideway. Design/methodology/approach Using thermal-structural coupling simulations, this research investigates the effects of assembly, oil pressure and thermal factors on deformation errors of the oil film contact surface. By integrating these with manufacturing errors, a profile error model for the oil film contact surface is developed, characterizing the cumulative effect of these errors. Using kinematic theory and progressive Mengen flow controller characteristics, the motion error at any position of the hydrostatic guideway is quantified, examining how surface error traits impact motion accuracy. Findings The error averaging effect is affected by the profile error of oil film contact surface. Meanwhile, the motion accuracy of hydrostatic guideway is highly sensitive to the oil film contact surface error amplitude. Originality/value This approach allows for precise prediction and analysis of motion accuracy in hydrostatic guideways during the design and manufacturing stages. It also provides guidance for planning process tolerances. Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-03-2024-0063/

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Study on lubrication performance of hydrostatic clearance oil film considering multi-factor coupling

Cited by 10 publications

References 28 publications

Research on the dynamic pressure effect of clearance oil film of stepped hydrostatic thrust bearing

Research on the dynamic pressure effect of clearance oil film of stepped hydrostatic thrust bearing

Research on the Support Performance of Internal Feedback Hydrostatic Thrust and Journal Bearing Considering Load Effect

Influence of multisource errors of oil film contact surface on motion accuracy of hydrostatic guideway

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