Results 91 to 100 of about 144 (123)
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On the TEHL Theory, Part II: Ellipsoidal Profile Application
Tribology Transactions, 1992A simplified solution is obtained to the thermoelastohydrodynamic lubrication problem involving ellipsoidal contacts subjected to heavy loads.
Keping Hou, Czeslaw M. Rodkiewicz
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Validation of a coupled multibody and TEHL simulation by a piston/cylinder component test rig
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2022A tribological highly stressed contact in the actuating system of axial piston machines is located between the control piston and the control chamber. This paper presents a new type of component test rig for measuring the frictional force and the gap heights between piston and cylinder.
Markus Kroneis +3 more
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Computational Mixed TEHL Model and Stribeck Curve of a Journal Bearing
Tribology Transactions, 2016The aim of this article is to propose a model capable of estimating the friction along a heavily loaded journal bearing under mixed and hydrodynamic lubrication.
Adrian Cubillo +2 more
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Multi-dimple phenomena in TEHL point contacts
Science in China Series B, 2002Theoretical analysis and experimental measurement of the multiple dimples in thermal elastohydrodynamic lubrication (TEHL) point contacts have been carried out. Good agreement is found between the theoretical and experimental results. A thermal multi-spike theory is proposed to explain the multi-dimple phenomena.
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Proposed TEHL Solution System for the Thrust Bearings Inclusive of Surface Deformations
Tribology Transactions, 1995The coupled fluid and solid governing differential equations and their boundary conditions are expressed in dimensionless form which yield dimensionless problem parameters. The proposed solution system uses an efficient hybrid numerical approach. The boundary element method is employed for heat transfer in the pad, a finite difference method for the ...
C. M. Rodkiewicz, P. Yang
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Study on TEHL flash temperature of helical gear pair considering profile modification
Industrial Lubrication and Tribology, 2022Purpose The purpose of this paper is to investigate the thermal elastohydrodynamic lubrication (TEHL) flash temperature of the helical gear pairs considering profile modification. Design/methodology/approach A flash temperature model of the helical gear pair considering the profile modification is proposed based on the TEHL and meshing theories.
Yue Liu, Jiayu Gong
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Parametric Study for Design Factors on Engine Bearings by using TEHL Analysis
SAE Technical Paper Series, 2002<div class="htmlview paragraph">As the downsizing and lightening of the engine are designed, the compact and lightweight of the housing should be required. Therefore, both the engine bearing and the housing are greatly deformed under the severe condition, and a heat generation due to the friction loss increases in the bearings.
Takeshi Katagiri +2 more
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A Numerical Analysis for TEHL of Eccentric-Tappet Pair Subjected to Transient Load
Journal of Tribology, 2003A full numerical analysis is carried out to simulate the thermal elastohydrodynamic lubrication (TEHL) of an eccentric-tappet pair. Comparisons between thermal and isothermal results are given to reveal the role of the thermal effect. Under various eccentricities, the influences of two surfaces moving in opposite directions on pressure and film ...
J. Wang, P. Yang
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Analysis of Two Surfaces in Line Contact under TEHL with Non-Newtonian Lubricants
Applied Mechanics and Materials, 2011This paper presents the static characteristics of two surfaces in line contact under TEHL with non-Newtonian lubricant. Modified Reynolds equation, elastic equation and energy equation were formulated to obtain the model. The model was simulated based on numerical method by using Newton-Raphson and multigrid multilevel techniques.
Rattapasakorn Sountaree +1 more
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SAE International Journal of Engines, 2017
<div class="section abstract"><div class="htmlview paragraph">High combustion pressure in combination with high pressure gradient, as they e.g. can be evoked by high efficient combustion systems and e.g. by alternative fuels, acts as broadband excitation force which stimulates natural vibrations of piston, connecting rod and crankshaft ...
Wolfgang Gross +5 more
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<div class="section abstract"><div class="htmlview paragraph">High combustion pressure in combination with high pressure gradient, as they e.g. can be evoked by high efficient combustion systems and e.g. by alternative fuels, acts as broadband excitation force which stimulates natural vibrations of piston, connecting rod and crankshaft ...
Wolfgang Gross +5 more
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