Study on Flow Characteristics of Cryogenic Hybrid Journal Bearings
نویسندگان
چکیده
منابع مشابه
On the Characteristics of Misaligned Journal Bearings
Journal bearing misalignment arise generally from the shaft deformation under load, deflection of the shaft, manufacturing and assembly errors, improper installation, and asymmetric loading. During operations, misalignment has a considerable effect on the static and dynamic performances. It could cause wear, vibration and even system failure. In this article, a literature review of misalignment...
متن کاملThermohydrodynamic Characteristics of Journal Bearings Running under Turbulent Condition
A thermohydrodynamic (THD) analysis of turbulent flow in journal bearings is presented based on the computational fluid dynamic (CFD) techniques. The bearing has infinite length and operates under incompressible and steady conditions. In this analysis, the numerical solution of Navier-Stokes equations with the equations governing the kinetic energy of turbulence and the dissipation rate, couple...
متن کاملFlow through the Grooves of Journal Bearings
A simple analysis of fully-developed Stokes ow in grooved bearings is performed that does not use lubrication scaling arguments as in Muijderman (1966). When the inertial terms are ignored, the Navier{Stokes equations decouple. The ow through the groove is then determined from a Poisson equation for the only component of velocity that contributes to the ow through the bearing. This velocity is ...
متن کاملtaylor-couette flow instabilities in journal bearings
in industry, flow instabilities are important in journal bearings at high rotational speeds. for inviscid flows between two rotating coaxial cylinders, an instability criterion was introduced by taylor-couette. however, viscosity may play as stabilizer or destabilize in such flows. in this work, stability theories were reviewed for two coaxial rotating cylinders. then, flow instability patterns...
متن کاملA study on the characteristics of externally pressurized air bearings
In this study the direct numerical method is applied to solve the perturbed Reynolds" equation. To solve it the perturbed dimensionless mass f low rate is used as the boundary condition under the inherently compensated restrictor. The dynamic characteristics of a rotor supported in the externally pressurized air bearings, such as stiffness and damping coefficients, are analyzed, and as a result...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Tribology Online
سال: 2016
ISSN: 1881-2198
DOI: 10.2474/trol.11.583