Results 171 to 180 of about 3,835 (218)

Inertia Effects in Hydrostatic Thrust Bearings

Journal of Basic Engineering, 1961
This paper includes the predominant inertia terms in an analysis of hydrostatic thrust bearings. The influence of centripetal accelerations on the distribution of pressure is found to be considerable. For parallel surface bearings of constant film thickness the inertia effects are found to be detrimental to load capacity.
exaly   +2 more sources

Centrifugal Effects in Hydrostatic Porous Thrust Bearing

Journal of Lubrication Technology, 1979
In this analysis the customary neglected centrifugal effects on the performance of hydrostatic porous thrust bearing with incompressible lubricant has been studied and the effects of their interaction of pressure distribution and load capacity illustrate the possibility of replacement of the nonporous bearing material by porous one.
R. S. Gupta, V. K. Kapur
openaire   +1 more source

A rotating field mhd hydrostatic thrust bearing

Applied Scientific Research, 1969
It is found that the load capacity of a magnetohydrodynamic thrust bearing with a rotating disk can be increased by rotating the axial magnetic field at a suitable speed in a direction opposite to that of the disk rotation. This method of improving the bearing performance is considered to be efficient if the Hartmann number is not too large. Thus for a
Chuen-Yen Chow, R. D. Brunell
openaire   +1 more source

Control Method of Heavy Hydrostatic Thrust Bearing

2009 International Conference on Intelligent Human-Machine Systems and Cybernetics, 2009
A hybrid fuzzy control scheme was applied to improve the rigidity of hydrostatic thrust bearing. The bearing oil film control was realized by coupling oil film thickness of four controllable chambers. The chamber flow can be regulated by electro hydraulic servo valve-control variable pump according to the surface roughness, load, cutting force, and ...
Guihua Han, Jianying Li, Yuhong Dong, Junpeng Shao   +3 more
openaire   +1 more source

Performance study of a hydrostatic air thrust bearing

Wear, 1981
Abstract In this paper we present the results of an extensive experimental investigation into the performance of a capillary-compensated hydrosatic six-pocket air thrust bearing under static loading and at different journal rotational speeds. The supply pressure ranged from 114 to 276 kPa and the applied load ranged from 53 to 623 N.
N.N.S. Chen, K.W. Ho
openaire   +1 more source

Inertia-induced cavitation in hydrostatic thrust bearings

Wear, 1961
Abstract The critical rotational speed at which inertia-induced cavitation is initiated in the lubricant film of hydrostatic thrust bearings is established. The lubricant mass flow and bearing load capacity at speeds exceeding this critical are determined and presented in the form of master plots of flow and load for all speeds.
J.F. Osterle, W.F. Hughes
openaire   +1 more source

The dynamic characteristics of a hydrostatic thrust bearing

International Journal of Machine Tool Design and Research, 1961
Abstract The dynamic behaviour of a hydrostatic thrust bearing is subjected to a relatively simple analysis, based on an equivalent spring-damper system. The validity of this approach is justified with results obtained from an experimental investigation. The results indicate that the dynamic stiffness of a massless system is at all times greater than
openaire   +1 more source

Design of tilted hydrostatic thrust bearings

Wear, 1981
Summary Hydrostatic bearings are usually designed to operate under parallel conditions, but structural and thermal deformations cause tilting of the pad. A semianalytical solution of the pressure equation is used. It is shown that tilting of hydrostatic thrust bearings gives rise to negative pressures and that cavitation may occur depending on the tilt
openaire   +1 more source

The MHD Hydrostatic Thrust Bearing—Theory and Experiments

Journal of Lubrication Technology, 1967
An analytical and experimental investigation is made of magnetohydrodynamic lubrication flow between parallel stationary disks in an axial magnetic field. The effect of the fluid inertia is analyzed by a single iteration of the appropriate differential equations.
R. J. Krieger, H. J. Day, W. F. Hughes
openaire   +1 more source

Theoretical and Experimental Analysis of Hydrostatic Thrust Bearings

Journal of Basic Engineering, 1960
This paper presents theoretical and experimental analysis of two types of circular hydrostatic thrust bearings, using incompressible lubricants. Design equations for load-carrying capacity, stiffness, and flow, are given for three different types of flow restriction—orifice, capillary, and constant flow.
R. C. Elwell, B. Sternlicht
openaire   +1 more source