Journal of Tribology: Recent submissions
Now showing items 601-620 of 7312
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The Effect of Spherical Hybrid Silica–Molybdenum Disulfide on the Lubricating Characteristics of Castor Oil
(The American Society of Mechanical Engineers (ASME), 8/18/2023 )This investigation demonstrates the effect of a structural hybrid of spherical silica and lamellar molybdenum disulfide (MoS2) combined to form a sphere used as an antifriction and antiwear additive in vegetable oil in ... -
Microstructure Characteristics and Tribological Properties of Gradient Cu-MoS2 Self-Lubricating Coating Fabricated by Selective Laser Melting of Ink-Printed Metal Nanoparticles
(The American Society of Mechanical Engineers (ASME), 8/18/2023 )Self-lubricating coating has been used in industrial applications with severe conditions, such as high temperatures, vacuum, radiation, etc. In this paper, a selective laser melting of ink-printed metal nanoparticles (SLM-IP ... -
A Theoretical Contact Model for Rough Elastic Spheres
(The American Society of Mechanical Engineers (ASME), 7/21/2023 )Investigating the contact of rough spheres is constructive to wide engineering applications and scientific research. However, the coexistence of global curvature and surface roughness brings difficulty in the analysis of ... -
Synergistic Effect of FSP and TiB2 on Mechanical and Tribological Behavior of AA2024 Surface Composites
(The American Society of Mechanical Engineers (ASME), 6/7/2023 1)In this research, AA2024 aluminum alloy-based surface composites were fabricated using ex situ titanium boride particles (TiB2) as reinforcement using the friction stir processing technique. Microstructural and mechanical ... -
Simulation of Air Ingestion in a Mechanical Seal With Inward Pumping Spiral Grooves
(The American Society of Mechanical Engineers (ASME), 7/25/2023 )Inward pumping spiral groove seals are used in many applications, such as transmission gearboxes or electric vehicles, as they can provide zero leakage and very low operating friction. The spiral grooves are connected to ... -
Experiments and Lattice-Boltzmann Simulation of Flow in a Vertically Aligned Gearbox
(The American Society of Mechanical Engineers (ASME), 8/29/2023 )This paper presents a study of the oil flow in a vertically arranged FZG gearbox. The splash and churning losses are experimentally evaluated using measurements of the resistance torque. Using high-speed imaging, the ... -
Mixed Lubrication Analysis of Scrolls Lubricated With CO2/Oil Mixture Based on a Homogeneous Model
(The American Society of Mechanical Engineers (ASME), 6/13/2023 )The tribological performance of scrolls lubricated with CO2/oil mixture is investigated using a combination of the mixed lubrication model and the homogeneous model. The physical characteristics of the CO2/oil mixture were ... -
A Stress-State-Dependent Sliding Wear Model for Micro-Scale Contacts
(The American Society of Mechanical Engineers (ASME), 8/16/2023 )Wear is a complex phenomenon taking place as two bodies in relative motion are brought into contact with each other. There are many different types of wear, for example, sliding, fretting, surface fatigue, and combinations ... -
Monitoring Wear of a Deep Groove Ball Bearing Using Ultrasonic Reflection
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )Wear changes the contact state and contact stiffness of the interface between the ball and the outer raceway under the operation of a deep groove ball bearing, resulting in the change of reflection coefficient of the ... -
Stochastic Performance of Journal Bearing With Two-Layered Porous Bush—A Machine Learning Approach
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )This investigation presents the deterministic and stochastic responses of the journal bearing with a two-layered porous bush. Pressure equations in the porous layers and modified Reynolds equations in the clearance region ... -
Dry Sliding Wear Performances of AA5052 Hybrid Composite Brake Disc Materials Reinforced With In Situ Synthesized TiC and Multi-Walled Carbon Nanotube
(The American Society of Mechanical Engineers (ASME), 6/7/2023 1)In this research, aluminum alloy AA5052-based hybrid metal matrix composites (MMCs) were fabricated using in situ synthesized titanium carbide (TiC) and ex situ multi-walled carbon nanotube (MWCNT) as reinforcements using ... -
Experimental Investigation and Machine Learning Modeling of Wear Characteristics of AZ91 Composites
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )This study's primary goal is to examine the effects of wear parameters on the wear-rate (WR) of magnesium (AZ91) composites. The composites are made up of using a stir casting process with aluminum oxide (Al2O3) and graphene ... -
Effect of Laser Mode and Power on the Tribological Behavior of Additively Manufactured Inconel 718 Alloy
(The American Society of Mechanical Engineers (ASME), 5/25/2023 )The influence of laser modes and power on the tribological behavior of additively manufactured Inconel 718 alloy using the directed energy deposition (DED) process was investigated. The samples were fabricated with continuous ... -
Friction Characteristics of SUS440C/Si3N4 Lubricated by Polytetrafluoroethylene Under Cryogenic Environment
(The American Society of Mechanical Engineers (ASME), 5/19/2023 )The friction characteristics of SUS440C-Si3N4 lubricated by polytetrafluoroethylene (PTFE) under cryogenic environment have not been researched well. The lubrication mechanisms in such friction condition need to be clarified ... -
A Theoretical and Experimental Study on the Power Loss of Gearbox Based on Dimensionless Analysis
(The American Society of Mechanical Engineers (ASME), 5/19/2023 )A prediction model of gearbox power loss based on dimensionless analysis is proposed. First, the dimensional model of gearbox power loss is established based on similarity criterion, dimensional harmony principle, and fluid ... -
A Machine Learning Approach for Real-Time Wheel-Rail Interface Friction Estimation
(The American Society of Mechanical Engineers (ASME), 2023)Predicting friction at the wheel-rail interface is a key problem in the rail industry. Current forecasts give regional-level predictions, however, it is well known that friction conditions can change dramatically over a ... -
Small-Dataset Machine Learning for Wear Prediction of Laser Powder Bed Fusion Fabricated Steel
(The American Society of Mechanical Engineers (ASME), 2023)The wear performance of an additively manufactured part is crucial to ensure the component’s functionality and reliability. Nevertheless, wear prediction is arduous due to numerous influential factors in both the manufacturing ... -
An Improved Slicing Technique for Finite Line Contacts in the Modeling of Rolling Element Bearings
(The American Society of Mechanical Engineers (ASME), 2023)Mechanical system often involves the finite line contact of key components such as rolling element bearings and gear pairs. Different contact models have been developed to predict the load–displacement relationship and ... -
Numerical Investigation of Turbopump Bearing Heat Generation in Liquid Methane
(The American Society of Mechanical Engineers (ASME), 2023)Liquid methane is one of the most promising candidates for the next-generation rocket propellant because it has an excellent balance between several propulsion performances such as specific impulse, storability, and ... -
Experimental and Simulation Analysis on Windage Power Loss of Herringbone Gear Pair
(The American Society of Mechanical Engineers (ASME), 2023)This paper presents a novel windage power loss (WPL) measurement method for the meshing herringbone gear pair. First, the WPL test rig of the herringbone gear pair is put up, and then the measurement sequence of WPL is ...