Journal of Tribology: Recent submissions
Now showing items 541-560 of 7312
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Developing Linear-Elastic Material Models for Pressure Measurement Films in Steel–Steel and Wheel–Rail Contact
(The American Society of Mechanical Engineers (ASME), 2024)The contact between two steel components can be identified by using multiple methods, for example, by experiments using pressure measurement films or by computational simulations with finite element analysis (FEA). For FEA ... -
Microstructure, Mechanical Properties, and Wear Behavior of Dissimilar Metallic Coatings for Steel Discs of Butterfly Valves
(The American Society of Mechanical Engineers (ASME), 2024)In the present work, coating materials that can be welded to the EN 1.6220 low-alloy steel disc of a butterfly valve and are also compatible with the seal material, i.e., 17–4 PH steel, are studied. 312 duplex stainless ... -
Improving Signal Transmission Quality of Wind Turbine Pitch Slip Ring With Copper Matrix Composites
(The American Society of Mechanical Engineers (ASME), 2024)To improve the signal transmission quality, copper matrix composites added with different contents of carbon nanotubes (CNTs) and molybdenum disulfide (MoS2) were prepared. The electrical and tribological properties of ... -
A Review of Computational Fluid Dynamics Approaches Used to Investigate Lubrication of Rolling Element Bearings
(The American Society of Mechanical Engineers (ASME), 2024)Optimizing bearing performance is based on effective lubrication, especially in high-speed machinery, where minimizing churning and drag losses is of significant importance. Over the past few decades, extensive research ... -
Research on Ferrographic Image Fault Diagnosis Based on Channel Overlapping Technique and Information Fusion Mechanism
(The American Society of Mechanical Engineers (ASME), 2024)Utilizing computer technology to realize the application of ferrographic intelligent fault diagnosis technology is a foundational investigation to oversee the operations of mechanical equipment. To continuously improve the ... -
Propagation of Uncertainty in Experimental Dynamic Coefficients of Fluid Film Journal Bearings
(The American Society of Mechanical Engineers (ASME), 2024)The stiffness and damping coefficients of fluid film bearings play a key role in predicting levels of vibration and stability margins in high-performance industrial rotating machinery. However, variability in the coefficients ... -
Experimental Study of Lubricant Distribution and Lubrication Enhancement Induced by Ball Bearing Cage
(The American Society of Mechanical Engineers (ASME), 2024)The bearing cage played a pivotal role in affecting the lubricant redistribution and lubrication states. In this study, a cage unit is incorporated into an optical ball-on-disc apparatus for the purpose of a quantitative ... -
In Situ Measurement of Oil Reservoir and Oil Layers by Fluorescence Technique in a Ball-on-Disc Test Rig
(The American Society of Mechanical Engineers (ASME), 2024)The major oil supply for the ball-on-disc contact is provided by the lubricating oil reservoir and the oil ridges; however, the regularity of their changes has not been thoroughly investigated. In this study, the laser-induced ... -
A Fast Calculation Approach for Elastohydrodynamic Finite Line Contacts Applicable to Online Calculations of Rolling Bearing Models
(The American Society of Mechanical Engineers (ASME), 2024)Finite line contacts in rolling element bearings are usually under the regime of elastohydrodynamic lubrication (EHL). To obtain deeper insights into bearing performance, it is necessary to directly couple EHL contact ... -
Novel Anti-Wear Performance of Nano Magnesium Silicate Hydroxide in Boundary Lubrication Under High Temperature
(The American Society of Mechanical Engineers (ASME), 2024)In the operation of the machine, the tribological properties of the lubricant are apt to deteriorate with temperature elevation. Therefore, it is of great significance to seek a lubricant additive with good high-temperature ... -
Oil Film Formation and Delamination Process on Nanostructured Surfaces in Boundary Lubrication: A Coarse-Grained Molecular Dynamics Study
(The American Society of Mechanical Engineers (ASME), 2024)A series of coarse-grained molecular dynamics simulations were conducted to investigate the temporal evolution of frictional behaviors of lubricants between sliding nanostructured iron surfaces. Grain boundary atoms were ... -
Comparative Studies of Microstructural, Mechanical, and Tribological Behavior of A319 Alloy Cast in Solid Waste Mold and Conventional Sand Mold
(The American Society of Mechanical Engineers (ASME), 2024)This study investigates the potential of utilizing industrial solid waste (blast furnace slag, ferrochrome slag, and red mud) as mold materials to improve the solidification rate and wear resistance of A319 alloy. Unlike ... -
Validation of Gear Friction Equation Using Directional Parameter
(The American Society of Mechanical Engineers (ASME), 2024)In our previous study, the Matsumoto equation was modified by introducing the directivity of machining marks on the tooth surfaces (directional parameter), and it was adapted to estimate the gear friction coefficient with ... -
Discussion: “Modeling of Flash Temperature for Elastic Sliding Contact of Single Micro-Asperity Pair” (Wu, Z., Zhang, Y., Xu, Y., Jie, D., and Jackson, R. L., 2024, ASME J. Tribol., 146(1), p. 011702)
(The American Society of Mechanical Engineers (ASME), 2024)Reflecting on the application and implications of this work [1], the authors realized that a few items should be discussed.Although the work is for elastic sliding contact, it could be adapted for elastic–plastic contact ... -
Experiment and Simulation on the Ferrofluid Boundary Deformation and Fluctuation Characters of a High-Speed Rotary Seal
(The American Society of Mechanical Engineers (ASME), 2024)A ferrofluid seal is a rotary seal widely used in the chemical industry, shipbuilding, aerospace, aviation, and other fields, demonstrating various advantages, such as high reliability, low wear, and low leakage rate. The ... -
Investigation of the Effect of Underpressure Between Main and Dust Lip on the Performance of Radial Shaft Seals Under Instationary Shaft Movements
(The American Society of Mechanical Engineers (ASME), 2024)Radial shaft seals (RSS) are increasingly used in applications with highly dynamic rotational shaft movement, high accelerations, and frequent changes in the rotational direction, e.g. positioning robots. For such instationary ... -
Simulation and Experimental Study on Crack Propagation in Slewing Bearing Steel
(The American Society of Mechanical Engineers (ASME), 2024)The study investigated the propagation characteristics of surface-initiated cracks in slewing bearing steel and analyzed the influence of initial crack length and orientation on crack propagation. A cohesive zone model ... -
A Study on the Machinability of Environmentally Friendly Turning of Titanium Grade 2 Alloy
(The American Society of Mechanical Engineers (ASME), 2024)This study focuses on environmentally responsible and sustainable manufacturing, where heat removal is critical. Various cooling and lubrication technologies are employed in manufacturing strategies, and although minimum ... -
Optimization of Controlling Factors for TC4 Alloy With Al2O3–Graphene Hybrid Nanofluid
(The American Society of Mechanical Engineers (ASME), 2024)Nowadays, mixing nanoparticles into cutting fluids is much more common to improve lubrication and cooling properties. Many studies have been carried out in the past to assess the machining performance using nanofluids. ... -
An Original Methodology to Model Stationary and Transient Starvation in Elastohydrodynamic Lubrication Contact
(The American Society of Mechanical Engineers (ASME), 2024)Despite many researches in the past decades, starvation modeling of an elastohydrodynamic lubricated (EHL) contact is still an arduous task. The well-established Jackobson, Floberg, and Olsson (JFO) theory indeed shows ...