Identification of Discharge Coefficients of Orifice-Type Restrictors for Aerostatic Bearings and Application Examples

Belforte, Guido; Raparelli, Terenziano; Trivella, Andrea; Viktorov, Vladimir

doi:10.5772/15830

Cited by 4 publications

(2 citation statements)

References 41 publications

(31 reference statements)

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“…The formula was adapted also to microholes [36]. The DP model was substantiated by a comparison with experimental measurements carried out on rectangular pads with microholes [38] and on circular pads [39] and the accuracy is good. …”

Section: Distributed Parameters Modelmentioning

confidence: 99%

Lumped parameters models of rectangular pneumatic pads: Static analysis

Colombo

Raparelli

Trivella

et al. 2015

Precision Engineering

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a b s t r a c t A lumped parameters model of a rectangular pneumatic pad is developed and static analysis is performed. The model can be implemented more quickly than a distributed parameters model and is equally accurate. The influence of geometric parameters is discussed to help the reader in the design of pneumatic pads. Analysis is carried out in dimensionless form to obtain results of general validity.

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Section: Distributed Parameters Modelmentioning

confidence: 99%

Lumped parameters models of rectangular pneumatic pads: Static analysis

Colombo

Raparelli

Trivella

et al. 2015

Precision Engineering

Self Cite

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“…In [7][8][9], air hammer instability, damping and tilting effect are investigated for different geometric parameters. Numerical methods are generally used to predict the pressure distribution in fluid film bearings, considering the discharge coefficient as a constant number [10] or as a function of the Reynolds number, supply hole geometry and fluid film thickness [11,12]. More recently [13], pressure distribution has been determined using a three dimensional CFD code, while the effect of the number of pressurized pad supply holes was investigated experimentally in [14].…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Air Pads with Micro Holes

Belforte

Colombo

Raparelli

et al. 2013

Tribology Transactions

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Research Developments of Aerostatic Thrust Bearings: A Review

et al. 2022

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In aerostatic thrust bearings (ATBs), a high-pressure gas film with a certain bearing capacity and stiffness is formed by passing high-pressure gas between the moving surface and the static surface. Aerostatic bearings have outstanding advantages in the following aspects: high precision, high speed, and long service life, etc. They are widely used in many fields, such as high-speed air spindles, precision machine tools, air-bearing guideways, turbine machinery, and high-speed drills. With the pursuit of higher efficiency and high-precision machining machinery, there is an increasing demand for high-performance ATBs. Much effort has been spent on the study of ATBs, such as improvements in load capacity and stiffness, and the enhancement of stability. Some significant progress has been achieved. In this paper, the research developments of ATBs are summarized from several aspects, such as theoretical models and experimental methods, static performance, dynamic performance, and applications. In addition, insights on the breakthrough and development trends of ATBs are put forward. It is hoped that this paper can provide some guidance for the design and application of ATBs.

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Identification of Discharge Coefficients of Orifice-Type Restrictors for Aerostatic Bearings and Application Examples

Cited by 4 publications

References 41 publications

Lumped parameters models of rectangular pneumatic pads: Static analysis

Lumped parameters models of rectangular pneumatic pads: Static analysis

Experimental Analysis of Air Pads with Micro Holes

Research Developments of Aerostatic Thrust Bearings: A Review

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