Zobrazeno 1 - 10
of 29
pro vyhledávání: '"J A, Walowit"'
Publikováno v:
ASAIO journal (American Society for Artificial Internal Organs : 1992). 43(5)
The Cleveland Clinic Foundation's Innovative Ventricular Assist System (IVAS) uses a hydrodynamic journal bearing to support the rotating assembly of the blood pump. Bearing dimensions are chosen so that a stable film of lubricant develops and separa
Publikováno v:
Journal of Tribology. 109:290-294
This paper presents the results of an experimental investigation intended to observe cavitation in squeeze-film bearing dampers representative of those commonly found in aircraft gas turbine engines. Two different squeeze-film damper geometries were
Publikováno v:
Journal of Lubrication Technology. 105:647-655
This work is concerned with an evaluation of the performance of a gas journal bearing using a spring supported compliant foil as the bearing surface. The analysis, conducted for both single and multipad configurations, is concerned with the effects t
Autor:
R. L. Smith, J. A. Walowit
Publikováno v:
Journal of Lubrication Technology. 98:607-612
Traction versus slip curves for a full matrix of loads, speeds, and temperatures are given for one MIL-L-7808. Hertzian contact pressures from 80,000 psi (551.6 MN/m2) to 150,000 psi (1034.2 MN/m2), speeds from 900 ips (22.9 m/s) to 1,820 ips (46.2 m
Autor:
J. A. Walowit, P. K. Gupta
Publikováno v:
Journal of Lubrication Technology. 96:250-257
The generalized plane strain problem of the contact of layered elastic solids is reduced to an integral equation using Green’s function approach. Approximate numerical solutions are obtained by replacing the integral equation by a matrix inversion
Autor:
W. R. D. Wilson, J. A. Walowit
Publikováno v:
Journal of Lubrication Technology. 93:69-74
A hydrodynamic lubrication theory is developed for a generalized hydrostatic extrusion and drawing process with augmentation and back pressure. The die is assumed to be conical and uniform deformation and isothermal lubrication conditions are assumed
Autor:
J. A. Walowit
Publikováno v:
AIChE Journal. 12:104-109
The effects of viscosity and density variations due to an imposed radial temperature gradient on the stability of Couette flow between rotating cylinders are investigated. The annular spacing between the cylinders is assumed to be small compared with
Publikováno v:
Journal of Lubrication Technology. 89:453-463
Stress patterns in lubricated rolling-contact elements have been computed from surface pressures and temperatures between pairs of rolling disks, both cylindrical or both crowned, measured by means of evaporated surface transducers. The maximum mecha
Autor:
J. N. Anno, J. A. Walowit
Publikováno v:
Nuclear Technology. 10:67-75
The effects of radiation on the corrosion of stainless steel in a sodium environment are explored by use of an analytical model of the corrosion process which divides it into leaching and “bulk cor...
Publikováno v:
Journal of Lubrication Technology. 95:490-498
The gyro system under consideration consists of a hollow porous sphere supported in a hydrostatic gas-lubricated spherical bearing. High pressure gas leaking into the sphere through the pores from the bearing film pressurizes the inside of the sphere