Journal of Tribology: Recent submissions
Now showing items 721-740 of 7312
-
Static Force Characteristic of Annular Gaps – Experimental and Simulation Results
(The American Society of Mechanical Engineers (ASME), 2022)We discuss the static characteristics, i.e., the induced force on the rotor, the attitude angle and the pressure difference, of off-centered annular gaps with an axial flow component without cavitation. The paper focuses ... -
Study on the Three-Dimensional Tribo-Dynamic Analysis of Piston Ring Pack Considering the Influence of Piston Secondary Motion
(The American Society of Mechanical Engineers (ASME), 2022)More detailed and accurate modeling is very important for analyzing and optimizing the tribological performance of the piston-ring-cylinder liner system. However, due to the difficulty of modeling and solving, theoretical ... -
Lubrication Properties of Textured CSS-42L Bearing Steel Filled With Sn-Ag-Cu-Ti3C2 Under Harsh Environmental Conditions
(The American Society of Mechanical Engineers (ASME), 2022)To study tribological enhancements of MXene-Ti3C2 under harsh environmental conditions (acidification, emulsification, and high-temperature oxidation), the textured CSS-42L bearing steel surfaces filled with Sn-Ag-Cu-Ti3C2 ... -
Wear Characterization of Raceway Surface Profiles of Ball Screws
(The American Society of Mechanical Engineers (ASME), 2022)Owing to the measurement difficulty and the required time needed to analyze wear processes of ball screws, very few studies have been reported. Here, on the basis of a test bench and a Taylor Hobson surface profilometer, ... -
An Experimental Approach to Evaluate Film Thickness in Starved Large-Size Spinning Contacts
(The American Society of Mechanical Engineers (ASME), 2022)In the present work, we evaluate the effects of lubricant starvation on the film thickness of spinning large-size point contacts from an experimental standpoint. This kind of contact is found in roller bearings in which ... -
Correlation Between Tribological and Vibration Behaviors in Sliding Lubricated Contacts
(The American Society of Mechanical Engineers (ASME), 2022)The tribological and vibration behaviors of a lubricated system are often studied separately. However, in recent years, the combination of tribology and mechanical vibration significantly contributes in analyzing and solving ... -
Kinematic-Geometric Lubrication Theory and Its Application to Arc-Toothed Cylindrical Worm Drive
(The American Society of Mechanical Engineers (ASME), 2022)The kinematic-geometric lubrication theory, which combines the results from the elastohydrodynamic lubrication theory and the meshing theory for gearing, is put forward for a line-conjugate gear drive to investigate its ... -
Fluid–Solid Interaction Modeling of Elastohydrodynamic Lubrication Point Contacts
(The American Society of Mechanical Engineers (ASME), 2022)Elastohydrodynamically lubricated point contact was investigated using a two-way partitioned fluid–solid interaction (FSI) model. ansys Mechanical finite element modeling software was used to compute elastic (and plastic) ... -
Open Gear Rolling Contact Fatigue Life Prediction by a Numerical Approach
(The American Society of Mechanical Engineers (ASME), 2022)In order to characterize the resistance to surface pitting of gears subjected to contact fatigue cycles, test campaigns have been carried out on toothed rings in through hardened wrought steel 42CrMo4, meshing a case-hardened ... -
Applying a Mono-Octadecanethiol Film on Silver and Gold Coin Products
(The American Society of Mechanical Engineers (ASME), 2022)Monomolecular anti-tarnish and lubricant layer was utilized in the coining industry for more than ten years, saving millions of dollars each year. However, the benzotriazole (BTA) that formed the monolayer on cupronickel ... -
An Optimization Design Method of a Cylindrical Roller Bearing With the Low Friction Torque
(The American Society of Mechanical Engineers (ASME), 2022)The heat generated during the bearing working process would greatly affect the working life and stability of bearing and mechanical transmission system. To analyze the heat generation of cylindrical roller bearings (CRBs), ... -
An Average Flow Model Considering Non-Newtonian Characteristics With Application to Grease Behavior
(The American Society of Mechanical Engineers (ASME), 2022)In this paper, the application scope of the average flow model is extended to grease lubrication considering the non-Newtonian characteristics. First, flow factor expressions applicable to both Newtonian fluids and ... -
A Multiple Nodes Model for Journal Bearing Considering the Distributed Supporting Effect and the Shaft Deformation
(The American Society of Mechanical Engineers (ASME), 2022)Journal bearing reaction is usually represented by a set of forces and moments concentrated at a single point. This single point support model cannot be utilized to describe the behavior of fairly long bearing. This technical ... -
Mass Conserving Analysis of Steadily Loaded, Oscillating Partial Arc Journal Bearings Using a Generalized Warner Bearing Formulation
(The American Society of Mechanical Engineers (ASME), 2022)This paper presents the first numerical study of self-acting grooveless, partial arc bearings under steady load and sinusoidal journal oscillation accounting for mass-conserving cavitation, with the objective of determining ... -
Effect on Wear Performance of ZrO2 Amount of 316L Stainless Steel Matrix Composites Produced by a Mechanical Alloying Method
(The American Society of Mechanical Engineers (ASME), 2022)This study investigated the wear performances of ZrO2 reinforced 316L stainless steel matrix composite materials. The 316L matrix was mechanically alloyed by adding three different amounts (1 wt%, 2 wt%, and 3 wt%) of ZrO2 ... -
Image Processing Approach for Estimating the Degree of Surface Eroded by Slurry at Different Impact Velocities
(The American Society of Mechanical Engineers (ASME), 2022)In this research, we utilize image processing to analyze surfaces acquired from slurry-erosion tests carried out on AISI 5117 steel at various velocities and impact angles of 30 deg and 90 deg. The fractal and wavelet ... -
Wear Analysis and Tool Life Modeling in Micro Drilling of Inconel 718 Superalloy
(The American Society of Mechanical Engineers (ASME), 2022)Aircraft engine parts, specifically blades, discs, and sheets are primarily made up of Inconel 718, which required drilled holes for assembly. Drilling holes in Inconel 718 is very difficult due to its high hardness, ... -
High-Temperature Wear Behavior of CoCr Matrix Coatings Reinforced by Niobium Element From Room Temperature to 1000 °C
(The American Society of Mechanical Engineers (ASME), 2022)The high-temperature wear resistant CoCr matrix coatings reinforced by the Nb element were fabricated on the Inconel 718 alloy by using the hot-pressed sintered method. The effects of Nb on the microstructure, hardness, ... -
Role of CuO in Al2O3-B2O3 Composites: In Situ Phases, Density, Hardness, and Wear Resistance
(The American Society of Mechanical Engineers (ASME), 2022)The aim of this study was to develop a novel set of Al2O3-B2O3-CuO composites and evaluate their tribological performance at varying humidity (10–95% relative humidity) levels. First, the Al2O3-B2O3 composites were prepared ... -
Effect of High Operating Temperatures on the Wear Characteristics of Boron Carbide and Ilmenite Reinforced LM13 Alloy-Based Composites
(The American Society of Mechanical Engineers (ASME), 2022)Wear properties of LM13 alloy-based composites were studied by using boron carbide (B4C) and ilmenite particles (FeTiO3) separately as reinforcement. The different weight percentage of reinforcement (5 wt%, 10 wt%, and 15 ...