Experimental research on a hydrodynamic thrust bearing with hydrostatic lift pockets: Influence of lubrication modes on bearing performance
نویسندگان
چکیده
The aim of the study is to investigate performance a thrust bearing equipped with hydrostatic lift pockets under different lubrication modes. Three types flat land modes are studied experimentally: (HS; forced oil injection pockets), hybrid (HS + HD; combined external supply) and hydrodynamic (HD; acting alone). Tests performed for steady transient states operation. obtained results confirmed that load- carrying capacity poor, introduction improves its performance. speed found be critical parameter: as it increases, effect affected film thickness reduced.
منابع مشابه
Influence Research of Cavity Shapes on Temperature Field of Multi- pad Hydrostatic Thrust Bearing
In order to compute the thermal deformation of the hydrostatic thrust bearing in the heavy type CNC equipments, a numerical research concerning temperature field of multi-pad hydrostatic thrust bearing having sector cavity, rectangular cavity, Ishaped cavity and ellipse cavity is described. Three-dimensional temperature field of gap fluid between the rotation worktable and the base has been sim...
متن کاملOil Aging Influence on the Slide Journal Bearing Lubrication
In this study authors solve the fundamental set of equations of the hydrodynamic theory of lubrication, namely are: the continuity equation, conservation of momentum and conservation of energy for the case of stationary slide bearings lubrication with a thixotropic lubricant. Adoption of assumption of steady flow loads in the considered phenomenon to the changes absence of the flow parameters i...
متن کاملOn the Steady-State Performance Characteristics of Finite Hydrodynamic Journal Bearing under Micro-Polar Lubrication with Turbulent Effect
The objective of the present paper is to theoretically investigate the steady-state performance characteristics of journal bearing of finite width, operating with micropolar lubricant in a turbulent regime. In this analysis, the turbulent shear stress coefficients are used based on the Constantinescu’s turbulent model suggested by Taylor and Dowson with the assumption of parallel and inertia-le...
متن کاملOn a mathematical model of journal bearing lubrication
We consider the steady motion of an incompressible fluid whose viscosity depends on the pressure and the shear rate. The system is completed by suitable boundary conditions involving nonhomogeneous Dirichlet, Navier’s slip and inflow/outflow parts. We prove the existence of weak solutions and show that the resulting level of the pressure is fixed by the boundary conditions. The problem is motiv...
متن کاملThermo-elasto-hydrodynamic (TEHD) analysis of oil film lubrication in big end bearing of a diesel engine
Nowadays, due to the increasing power of diesel engines, especially heavy duty diesel engines, and increasing gas pressure inside the combustion chamber, the forces acting on the engine bearings have dramatically raised. On the other hand, becaus eof the competition in the market, it is necessary to increase the engine bearing life and reduce its failure as much as possible. The engine bearings...
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 International
سال: 2022
ISSN: ['0301-679X', '1879-2464']
DOI: https://doi.org/10.1016/j.triboint.2021.107253