Results 71 to 80 of about 1,761,923 (152)

The Ultrastructure of the Spectacle, Cornea and Conjunctiva of the Short‐Nosed Sea Snake Aipysurus apraefrontalis (Elapidae, Squamata) With Particular Reference to the Sub‐Spectacular Space and Its Contents

Journal of Morphology, Volume 287, Issue 9, September 2026.
Using micro computed tomography, light microscopy and transmission electron microscopy, this study reveals that the conjunctival portions of the corneal epithelial and spectacular endothelial lining in the eye of the short‐nosed sea snake Aipysurus apraefrontalis possess high densities of microvilli to increase the surface area and two types of ...
H. Barry Collin, Boyin Liu, Sarah Wilson, Jenna M. Crowe‐Riddell, Shaun P. Collin   +4 more
wiley   +1 more source

A Generalized Reynolds Equation for Non-Newtonian Thermal Elastohydrodynamio Lubrication

, 2020
Introduction Reynolds It is well accepted that, for a better understanding of the mechanism of elastohydrodynamic lubrication, the rheological behavior of the lubricant should be taken into account in the solution of this kind of problems.
Yang Peiran, Wen Shizhu
core  

An Improved Air Film Model for Studying the Tilt Characteristics of Aerostatic Thrust Bearings

International Journal of Mechanical System Dynamics, Volume 6, Issue 3, Page 425-444, September 2026.
ABSTRACT In this study, an improved mass‐spring model that treats the lubricating air film as distributed springs is proposed to calculate the static and dynamic angular stiffness of aerostatic thrust bearings. The proposed model refines the traditional mass‐spring model by introducing the spatially varying mechanical properties of the air film and the
Hui Zhuang, Jianguo Ding, Yu Chang
wiley   +1 more source

A Neural Network-Based Feature Recognition Method in Adaptive Refinement for Efficient Reynolds Equation Solving

Lubricants
This study proposes an adaptive refinement method based on feature recognition to rapidly obtain solutions of the Reynolds equation. Leveraging an isogeometric analysis (IGA) solution framework supporting local refinement, three natural refinement ...
Gang Rao, Lei Ma, Bingquan Zuo, Jiashu Yang, Weikang Xie   +4 more
doaj   +1 more source

Lubrication Performance Analysis of Misaligned Journal Bearing with Roughness Surface Considering Variable Density and Variable Specific Heat

Jixie chuandong, 2018
The thermoelastrohydrodynamic lubrication performances of misaligned journal bearing considering surface morphology,thermal effect and variable density and variable specific heat are studied.
Zeng Qi, Zhou Wenping, Shen Kai
doaj  

Flow Characteristics and Experimental Verification of T-Groove Dry Gas Seal Under Different Flow States

Lubricants
With the improvement of dry gas seal efficiency in high-parameter fields, the flow pattern of gas film lubrication is complicated. Based on gas lubrication theory, the Reynolds equation of compressible gas was established with a bidirectional T-groove ...
Lanxia Zhang, Xuexing Ding, Shipeng Wang, Shuai Zhang   +3 more
doaj   +1 more source

An Approach to Calculate Leakage Flow, Stiffness and Damping of Annular Seals in Turbulent Flow Using Lubrication Theory, Part I: Analysis

Tribology Online, 2007
This paper presents a general theoretical approach to evaluate the leakage flow, stiffness and damping of annular seals in turbulent flow regime including fluid inertia using turbulent lubrication theory.
Satyam Shivam Gautam, Mihir Kumar Ghosh
doaj   +1 more source

Analysis of Two-Layered Journal Bearing Lubricated with Ferrofluid

MATEC Web of Conferences, 2014
The present study investigates the load capacity and friction coefficient for a two-layered journal bearing lubricated with ferrofluid. A modified Reynolds equation for a two-layered ferrofluid is derived using displaced infinitely long wire magnetic ...
Rao T. V. V. L. N., Rani A. M. A., Nagarajan T., Hashim F. M.   +3 more
doaj   +1 more source

Effect of load and speed on warship power rear drive system helical gear anti-scuffing properties in thermal elasto-hydrodynamic lubrication

Advances in Mechanical Engineering, 2016
The key parameters which caused the scoring failure of helical gears are operating load and speed. In this study, the simulations using geometric meshing theory were carried out to investigate the effect of load and speed of warship transmission helical ...
Yongmei Wang, Junpeng Shao, Xigui Wang, Xuezeng Zhao, Shubao Li, Lixin Cao   +5 more
doaj   +1 more source

CYLINDRICAL ROLLER BEARING LUBRICATION REGIMES ANALYSIS AT LOW SPEED AND PURE RADIAL LOAD

Acta Polytechnica, 2019
In this article, we describe a method of the roller bearing lubrication regime prediction. It uses a mathematical model of the bearing based on the standard ISO/TS 16281 to obtain the external load distribution over the rolling elements.
Jakub Chmelař, Karel Petr, Petr Mikeš, Vojtěch Dynybyl   +3 more
doaj   +1 more source