Results 81 to 90 of about 138 (128)
Some of the next articles are maybe not open access.
Analysis of aerostatic thrust bearings with offset load
International Journal of Machine Tool Design and Research, 1973Abstract A general solution of an aerostatic multirecess thrust pad with offset load is obtained. The generalized Reynolds' equation is solved numerically with the aid of a digital computer. Design curves are given for the performance of a four-recessed square thrust bearing. Experimental evidences show the validity of the method.
B.C. Majumdar, K.C. Singh
openaire +1 more source
Research on the design of the continuous slot-restriction aerostatic thrust bearing
2017 23rd International Conference on Automation and Computing (ICAC), 2017In order to increase the load capacity of aerostatic bearings, a kind of continuous slot-restriction aerostatic thrust bearing was designed and manufactured. The CFD simulation and experiment methods were both used for studying it; the data about the load capacity was derived from the two methods.
Guangzhou Wang +4 more
openaire +1 more source
A multiphysics coupled model for active aerostatic thrust bearings
2008 IEEE/ASME International Conference on Advanced Intelligent Mechatronics, 2008Aerostatic thrust bearings are used in linear guideways as an alternative to contact bearings. The absence of friction in the motion makes aerostatic guideways most suitable for high precision and high speed machines. The low stiffness and damping of the aerostatic support limits their application to machining processes. Active compensation, applied to
Gorka Aguirre +2 more
openaire +1 more source
Analysis of aerostatic porous annular thrust bearings with tilt
Wear, 1982Abstract A theoretical analysis is presented in order to predict the static characteristics of an aerostatic porous annular thrust bearing with a tilted runner pad. The flow through the porous matrix is assumed to be axial because the thickness of the pad is small compared with its radius.
K.C. Singh, N.S. Rao
openaire +1 more source
Experimental investigation into the performance of an aerostatic industrial thrust bearing
Tribology International, 1985Abstract Load and flow versus air-gap curves and stability maps have been obtained for an industrial externally-pressurized air-lubricated thrust bearing with a central restrictor. Supply pressure and pocket depth were treated as parameters. Bearing stiffness was estimated by using a computer to fit a polynomial type curve to the test data.
D.A. Boffey, A.A. Barrow, J.K. Dearden
openaire +1 more source
An aerostatic thrust bearing with a stiffness of
Nanotechnology, 1996This paper proposes a new type of aerostatic thrust bearing in order to achieve 10 times larger bearing stiffness compared with that of conventional aerostatic bearings. In this bearing, a porous restrictor with 1 - 3 mm diameter is employed instead of a conventional feed-hole restrictor to restrain gas flow entering the bearing clearance to a very ...
openaire +1 more source
Nanoparticles-Laden Gas Film in Aerostatic Thrust Bearing
Journal of Tribology, 2014Nanoparticles-laden gas film (NLGF) was formed by adding SiO2 nanoparticles with volume fraction in the range of 0.014–0.330% and size of 30 nm into the air gas film in a thrust bearing. An effective viscosity of the gas-solid two phase lubrication media was introduced.
Zhiru Yang +3 more
openaire +1 more source
On the analysis of aerostatic thrust bearings with the differential quadrature method
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2013This paper presents a numerical approach to analyze the performance of aerostatic thrust bearings based on the differential quadrature method. The Reynolds equation of aerostatic thrust bearings is firstly discretized as a series of algebraic equations by the differential quadrature method and the pressure distribution is calculated with the ...
ZeGuang Dong +3 more
openaire +1 more source
Analysis of Aerostatic Thrust Bearing for S-CO2 Turbomachinery
Volume 1: Compressors, Fans, and Pumps; Turbines; Heat Transfer; Structures and Dynamics, 2019Abstract Preliminary analysis for the S-CO2 Brayton power cycle development suggests small size and high operating speed of turbomachinery. The axial thrust due to the pressure differential generated in the turbomachinery is transferred to the bearing through the shaft.
Ashutosh Patel +5 more
openaire +1 more source
A new type of aerostatic thrust bearing with high stiffness
International Technology and Innovation Conference 2006 (ITIC 2006), 2006The precision and ultraprecision machinery requires increasing the stiffness of aerostatic bearing. In this paper, a new type of aerostatic thrust bearing with high stiffness is presented. The principle of the new bearing is studied. The air pressure reaction in the bearing gap on load makes annular membrane elastically deform.
null Zhang Junan +2 more
openaire +1 more source