Journal of Tribology: Recent submissions
Now showing items 641-660 of 7312
-
Oilstone Processing and Its Impact on the Surface Texture of Cylinder Bore
(The American Society of Mechanical Engineers (ASME), 2023)Honing is one of the abrasive-based machining processes to remove material through the asperity interaction between numerous stochastic grains distributed on oilstone (also called honing stone) and workpiece. Therefore, ... -
Effects of Heat Treatment on Sliding Wear and Milling Properties of Ti-6Al-4V Prepared by Selective Laser Melting
(The American Society of Mechanical Engineers (ASME), 2023)Ti-6Al-4V titanium alloy manufactured by selective laser melting (SLM) has a unique structure and properties. They offer a higher yield and ultimate tensile strengths but lower ductility than traditionally processed samples. ... -
Design Optimization of Angular Contact Ball Bearing Using Genetic Algorithm and Grid Search Method
(The American Society of Mechanical Engineers (ASME), 2023)The present work proposes an approach to design and optimize the internal geometry of angular contact ball bearings (ACBBs) with the help of the genetic algorithm (GA) and the grid search method (GSM). Rolling bearings ... -
Study of Magnetorheological Grease Flow in a Double Restriction Seal Configuration
(The American Society of Mechanical Engineers (ASME), 2023)This work presents an investigation of magnetohydrodynamic flow in a novel double restriction seal configuration using micro-Particle Image Velocimetry (µPIV). A conventional seal design has been modified to impart magnetic ... -
Investigation of Roller Bearing Cage Pocket Lubrication and Friction
(The American Society of Mechanical Engineers (ASME), 2023)A test rig was designed and developed to assess the lubrication and friction of a single cylindrical roller and a conformal cage pocket. The roller was lubricated via oil bath in a sealed housing. Inner and outer bearing ... -
Effects of Axial Clearance on Surface Initiated Flaking in Tapered Roller Bearings
(The American Society of Mechanical Engineers (ASME), 2023)The calculating method for fatigue life of rolling bearings is based on the theory of Lundberg and Palmgren. The rated life is determined from the ratio of the dynamic load rating of the bearing to the dynamic equivalent ... -
A Comparison of the High-Pressure Viscometry and Optical Inference Methods Used to Determine the Pressure-Viscosity Coefficient
(The American Society of Mechanical Engineers (ASME), 2023)Pressure-viscosity coefficients (PVC) are used in the predictions of elastohydrodynamic lubricated (EHL) componentry. These coefficients are obtained by either viscometry or optical EHL inference. The literature indicates ... -
Influence of Real Lubricant Density–Pressure Behavior on the Dynamic Response of Elastohydrodynamic Lubricated Conjunctions
(The American Society of Mechanical Engineers (ASME), 2023)The current work investigates the influence of real lubricant density–pressure behavior on the dynamic response of elastohydrodynamic lubricated conjunctions. Such a response is often based on a nonrealistic universal ... -
Research on Start-Stop Performance of Journal Bearing Based on an Isothermal and Mixed Lubrication Model With Different Acceleration and Deceleration Forms in Consideration
(The American Society of Mechanical Engineers (ASME), 2023)In order to explore the influence of different acceleration and deceleration forms on the bearing performance during acceleration and deceleration, an isothermal and mixed lubrication model for journal bearings was ... -
Effect of Electric Current and Graphite Content on the Wear Behaviors of Copper/Graphite Composites
(The American Society of Mechanical Engineers (ASME), 2023)The reasonable electric current and graphite content will slow down the wear failure of friction pair and prolong the service life of slip ring. To study the wear behaviors of copper/graphite composites under different ... -
A Wear Calculation Method for Helical Gear Based on Irreversible Thermodynamics
(The American Society of Mechanical Engineers (ASME), 2023)The accurate prediction of wear depth is of great significance to the failure evaluation of gear transmission. At present, the traditional wear calculation method is still unable to accurately predict the wear depth of ... -
Theoretical Development in the Viscosity of Ferrofluid
(The American Society of Mechanical Engineers (ASME), 2023)The viscosity of ferrofluid has a vital role in liquid sealing of the hard disk drives, biomedical applications as drug delivery, hyperthermia, and magnetic resonance imaging. The theoretical expressions for ferrofluid ... -
Optical Measurement of Roller Slip, Tilt, and Skew in a Spherical Roller Bearing
(The American Society of Mechanical Engineers (ASME), 2022)In this study, a novel test rig was designed and developed to investigate roller slip, tilt, and skew in a spherical roller bearing (SRB). The test rig utilized a double-row 22313 SRB and was designed to allow for direct ... -
A Simulation Analysis of Ball Bearing Lubrication Characteristics Considering the Cage Clearance
(The American Society of Mechanical Engineers (ASME), 2022)Lubrication characteristics can greatly affect the service performances of ball bearings. To further clarify the variation law of oil–air distribution in bearing cavity, a new simulation method combining the dynamic and ... -
Evaluating the Time-Varying Mesh Stiffness of Planetary Gear Set With Gear Crack Considering the Friction Force Under Mixed Elastohydrodynamic Lubrication Condition
(The American Society of Mechanical Engineers (ASME), 2022)The mesh stiffness calculation of the planetary gear system with gear crack is investigated, and gear crack is modeled into end-face and addendum extended crack. Furthermore, the mesh stiffnesses are calculated under the ... -
Research on Tribo-Dynamic Characteristics of Double Involute Gears Based on Multiphysics Coupling
(The American Society of Mechanical Engineers (ASME), 2022)In order to accurately obtain the dynamic characteristics of double involute gears (DIGs), according to the characteristics of tooth profile engagement, a tribo-dynamic model of DIGs with multiphysics coupling characteristics ... -
Friction of Coated and Uncoated Rough Surfaces in Additive-Free and Fully Formulated Engine Oils Under Boundary and Mixed Lubrication Conditions
(The American Society of Mechanical Engineers (ASME), 2022)Downsizing in spark-ignited engines becomes one of the most effective concepts to achieve fuel economy and emissions requirements and drives operating conditions of major moving engine components into more mixed and boundary ... -
Contact Stress-Induced Wear Mechanism Transitions of PcBN/Al2O3 Under Vacuum and Air Conditions
(The American Society of Mechanical Engineers (ASME), 2022)Since the millennium, incremental breakthroughs in aerospace have attracted widespread attention from countries around the world on deep space exploration. Technological innovations in ceramic and superhard materials have ... -
Wear and Friction Mechanism of Stainless Steel 420 Under Various Lubrication Conditions: A Tribological Assessment With Ball on Flat Test
(The American Society of Mechanical Engineers (ASME), 2022)The application of stainless steel 420 is noted in various industrial sectors such as aerospace, automobile etc. However, the wear mechanism of stainless steel 420 is greatly affected by the use of 100Cr6 balls due to the ... -
A Surface Skewness and Kurtosis Integrated Stress Concentration Factor Model
(The American Society of Mechanical Engineers (ASME), 2022)Surface skewness and kurtosis are two crucial topography property indexes that greatly influence the functional performance of the machined surface. This paper proposes a modified model of stress concentration factor (SCF), ...