非晶态薄带冷却铜辊用内反馈静压轴承数值模拟

doi:10.7527/S1000-6893.2013.0337

Abstract

Abstract:

Hydrostatic bearings with self-controlled restrictors are used for cooling roll support structures in amorphous alloy ribbon formation due to their large load capacity, high bearing stiffness and low friction characteristics. The finite volume method is used to compute the three-dimensional fluid pressure field of the bearing models of different eccentricities to obtain the bearing characteristics. This study analyzes theoretically the influence of different eccentricities on bearing performance according to computational fluid dynamics. The simulation results demonstrate that the load capacity of the bearing increases gradually with the increase of eccentricity at the same supplied pressure. And the increase of supplied pressure results in the enlargement of the load capacity with the same eccentricity. In comparison with the real value of the load, the relative errors of simulation data are respectively 5.3% and 5.4% with the supplied pressure of 3.0 MPa and 3.5 MPa. Through this study, the validity of the numerical simulation of hydrostatic bearings is verified.

Key words: self-controlled restrictor, hydrostatic bearings, load capacity, pressure distribution, eccentricity

CLC Number:

V19
TF305

SONG Yanming, YANG Yang. Numerical Simulation of Hydrostatic Bearing with Self-controlled Restrictor Employing Cooling Roll in Amorphous Alloy Ribbon Formation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(4): 1157-1164.

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Numerical Simulation of Hydrostatic Bearing with Self-controlled Restrictor Employing Cooling Roll in Amorphous Alloy Ribbon Formation

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