Calculation of the Characteristics of a Hydrostatic Ring Thrust Bearing for Refrigeration Compressors

Новиков, Е. А.; Shitikov, I. A.; Maksimov, V. A.

doi:10.1023/b:cape.0000033680.91322.0f

Cited by 12 publications

(9 citation statements)

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“…Hemmi (2005) analyzed influence of inertia and temperature on characteristic of hydrostatic bearing, and oil film pressure field was simulated considering different load position and oil film thickness ratio, and compared with experimental results. Novikov (2004) and Fazil (2004) described optimal temperature field and deformation characteristics of hydrostatic bearing having circular cavity, and the results were applied to practical production, the production efficiency and operation precision were greatly improved. Zhao (2008) found that effect of structural deformation on film thickness must be considered in the course calculating static pressure.…”

Section: Introductionmentioning

confidence: 99%

Thermal-fluid-solid coupling deformation of hydrostatic thrust bearing friction pairs

Zheng

et al. 2019

ILT

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Purpose The purpose of this paper is to study thermal-fluid-solid coupling deformation and friction failure mechanism of bearing friction pairs under the working conditions of high speed and heavy load. Design/methodology/approach The deformation is simulated based on thermal-fluid-solid coupling method, its deformation distribution law is revealed and the relationships of deformation of friction pairs, rotational speed and bearing weight are obtained. Findings The results prove that the oil film temperature rises sharply, the lubricating oil viscosity decreases rapidly, the film thickness becomes thinner, the deformation increases, the whole deformation is uneven and the boundary lubrication or dry friction are caused with the increase in rotational speed and bearing load. Originality/value The conclusions provide theoretical method for deformation solution and friction failure mechanism of hydrostatic thrust bearing.

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Section: Introductionmentioning

confidence: 99%

Thermal-fluid-solid coupling deformation of hydrostatic thrust bearing friction pairs

Zheng

et al. 2019

ILT

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“…The theoretical and applied studies on hydrostatic bearings have been booming at home and abroad in recent years. For oil-film temperature field, Novikov and Shitikov (2005) established the mathematical model for hydrostatic collar thrust bearing and did the numerical analysis. Capello et al (2006) put forward a thermal model to predict internal thermal field of the bar under the laser beam for the laser surface test.…”

Section: Introductionmentioning

confidence: 99%

Theoretical research on sector oil-pads’ mechanical property in hydrostatic thrust bearing based on constant flow

Cheng

et al. 2017

ILT

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Purpose The purpose of this study with the rapid development of the heavy/large mechanical equipment, the heavy computer numerical control (CNC) vertical lathe has become the ideal processing equipment for the parts of those mechanical equipments. The main factor which affects the machining quality and efficiency of heavy CNC vertical lathe is the mechanical properties of the hydrostatic thrust bearing. Design/methodology/approach This paper did the research based on the large size sector oil pad’s lubrication performance of the hydrostatic thrust bearing in the heavy/large equipments, establishing the lubrication performance distribution mathematical model of the velocity field, flow field, pressure field and so on, analyzing the bearing behavior of the large size sector oil pad. Findings The results show that the oil flow generated by the plate relative motion will be greater than that generated by the pressure difference in area B, with the rotational speed’s increasing of the hydrostatic thrust bearing, and the direction is opposite. The oil flow generated by the centrifugal force will be greater than that generated by the pressure difference in area C, with the rotational speed’s increasing of the hydrostatic thrust bearing, and the direction is opposite. When the rotational speed of the hydrostatic thrust bearing is too high, the friction heat will be not easy to be sent out. The bearing rotating speed should be lower than the comparatively smaller one of ω1 and ω2, which can help avoid the rise of too high temperature. Originality/value The research provides powerful theoretical foundation for practical application of the large size sector oil pad hydrostatic thrust bearing, its structure design and operating reliability, realizing the lubrication performance prediction of the large size hydrostatic thrust bearing.

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“…(2011) proposed a novel oil-cavity structure of gyrus slot to enable the single oil-cavity hydrostatic thrust bearing in heavy CNC vertical lathe’s work turntable to bear bias load. Novikov et al . (2004) established the mathematical model for annular hydrostatic thrust bearing with low-viscosity ecologically clean fluid as lubricating oil and made a numerical analysis of its performance.…”

Section: Introductionmentioning

confidence: 99%

Theoretical research on mechanical property of rectangular oil pad in hydrostatic thrust bearing based on constant flow

Cheng

et al. 2016

ILT

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Purpose This paper aims to research the lubrication performance of large-size rectangular oil pad in hydrostatic thrust bearing for heavy computer numerical control (CNC) vertical lathe. Design/methodology/approach The research establishes the mathematical models of velocity, flux and pressure fields, etc., for lubrication performance distribution, and analyzes its load-bearing behavior. Findings When hydrostatic thrust bearing’s rotating speed is within ω1-ω2, the oil flow generated by plate’s relative motion is greater than that generated by pressure difference and centrifugal force, and in the opposite direction, making it not easy to emit friction heat, so the rotating speed range ω1-ω2 should be avoided for bearing. Originality/value The research provides powerful theoretical basis for the structure design, operating reliability and practical application of large size rectangular oil pad hydrostatic thrust bearing, and realizing the prediction of its lubrication performance.

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Calculation of the Characteristics of a Hydrostatic Ring Thrust Bearing for Refrigeration Compressors

Cited by 12 publications

References 0 publications

Thermal-fluid-solid coupling deformation of hydrostatic thrust bearing friction pairs

Thermal-fluid-solid coupling deformation of hydrostatic thrust bearing friction pairs

Theoretical research on sector oil-pads’ mechanical property in hydrostatic thrust bearing based on constant flow

Theoretical research on mechanical property of rectangular oil pad in hydrostatic thrust bearing based on constant flow

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