Showing papers in "Tribology Transactions in 2021"
TL;DR: Based on functionally graded material (FGM) designed concept, the laminated-graded Ag-multilayer graphene/TC4 alloy self-lubricating composites (GTMAC) are prepared to overcome the poor friction as mentioned in this paper.
Abstract: Based on functionally graded material (FGM) designed concept, the laminated-graded Ag-multilayer graphene/TC4 alloy self-lubricating composites (GTMAC) are prepared to overcome the poor friction an...
23 citations
Abstract: The present work aims to investigate the synergetic effect of Titanium Dioxide (TiO2) and graphene (GnP) nanoparticle additives on rheological and machining characteristics of biodegradable vegetab...
23 citations
TL;DR: The kinetic relationship of collision and friction between the cage and the rolling element is complex, which has an important influence on the bearing acceleration and deceleration process of a bearing as discussed by the authors.
Abstract: During acceleration and deceleration processes of a bearing, the kinetic relationship of collision and friction between the cage and the rolling element is complex, which has an important influence...
18 citations
TL;DR: In this paper, the behavior of lubricants at operational conditions, such as at high pressures, is a topic of great industrial interest, in particular viscosity and pressure relation.
Abstract: The behavior of lubricants at operational conditions, such as at high pressures, is a topic of great industrial interest. In particular, viscosity and the viscosity-pressure relation are especially...
17 citations
TL;DR: Most magnetic fluid seals are multitooth structures for the high sealing capacity as discussed by the authors, however, the pressure transfer mechanism in the multitooth magnetic fluid seal is only carried out through experim...
Abstract: Most magnetic fluid seals are multitooth structures for the high sealing capacity. However, the pressure transfer mechanism in the multitooth magnetic fluid seal is only carried out through experim...
14 citations
TL;DR: In this article, the temperature field of the wet clutches is influenced by friction and is closely related to the vehicle's acceleration and braking characteristics, and the temperature of the clutches are used to start and shift the vehicle transmission.
Abstract: Wet clutches are widely used in vehicle transmission systems to start and shift. The temperature field of the wet clutch components is influenced by friction and is closely related to the vehicle p...
13 citations
TL;DR: To improve the tribological properties and suppress the friction-induced noise of Ti-6Al-4V alloys (TC4), TC4 with smooth surfaces (TSs), groove antifriction surfaces (GAs), Sn-Ag-Cu coating surfac...
Abstract: To improve the tribological properties and suppress the friction-induced noise of Ti-6Al-4V alloys (TC4), TC4 with smooth surfaces (TSs), groove antifriction surfaces (GAs), Sn-Ag-Cu coating surfac...
13 citations
TL;DR: In this article, the authors studied a special phenomenon of wheel wear occurring on the trains operating on a metro line: the wheel polygonal wear rate of the right wheel is higher than that of the left wheel.
Abstract: This paper aims to study a special phenomenon of wheel wear occurring on the trains operating on a metro line: the wheel polygonal wear rate of the right wheel is higher than that of the left wheel...
12 citations
TL;DR: In this paper, a novel experimental test rig for the investigation of friction between a ball and cage of a deep groove ball bearing (DGBB) was presented, and the experimental apparatus was designed and developed.
Abstract: This article presents a novel experimental test rig for the investigation of friction between a ball and cage of a deep groove ball bearing (DGBB). The experimental apparatus was designed and devel...
12 citations
TL;DR: In this article, a bearing failure due to white etching cracks (WECs) occurs when the rolling contact is subjected to a so-called additional load such as an electrical current flow through the bearing in ad
Abstract: Premature bearing failures due to white etching cracks (WECs) occur when the rolling contact is subjected to a so-called additional load such as an electrical current flow through the bearing in ad
12 citations
TL;DR: In this article, a grooved texture surface was fabricated to enhance the wear resistance of the guide rail surface of molding machine, and the effects of sand concentration in the oil and the groove width on the tribol...
Abstract: A grooved texture surface was fabricated to enhance the wear resistance of the guide rail surface of molding machine. The effects of sand concentration in the oil and the groove width on the tribol...
TL;DR: In this paper, the effect of wheel structure on friction-induced wheel polygonal wear was studied. But the effect on the quality of the wheel structure was not investigated, and the authors focused on the inconsistent design standards of China's high-speed railway.
Abstract: Aiming at the inconsistent design standards of China’s high-speed railway, the effect of wheel structure on friction-induced wheel polygonal wear is studied. A finite element model is established t...
TL;DR: In this paper, a field test and a simulation analysis of disc brake squeal were carried out to study the mechanism of brake noise in light-rail trains, and the results showed that the noise and vibration of the disc brake were equal to or slightly higher than the noise of the train itself.
Abstract: To study the mechanism of brake squeal of light-rail trains, a field test and a simulation analysis of disc brake squeal were carried out. In the field test measurement, the noise and vibration cha...
TL;DR: Grease life in hybrid bearings is longer than that in all-steel bearings as discussed by the authors, by means of grease life tests with a large number of greases for both Deep Groove Ball Bea...
Abstract: Grease life in hybrid bearings is longer than that in all-steel bearings. This will be shown in this paper by means of grease life tests with a large number of greases for both Deep Groove Ball Bea...
TL;DR: The frictional vibration generated in water-lubricated rubber bearings operating under low speed, heavy load, startup and shutdown conditions can severely degrade the reliability and the sheltered... as discussed by the authors.
Abstract: The frictional vibration generated in water-lubricated rubber bearings operating under low speed, heavy load, startup and shutdown conditions can severely degrade the reliability and the sheltered ...
TL;DR: A solid contact model with high accuracy is required for mixed lubrication calculation to predict friction loss and wear in sliding parts by computer-aided engineering; however, existing models hav...
Abstract: A solid contact model with high accuracy is required for mixed lubrication calculation to predict friction loss and wear in sliding parts by computer-aided engineering; however, existing models hav...
TL;DR: In order to solve the problem that the assumption of the straight shaft is inconsistent with the actual situation of marine water-lubricated journal bearings, the journal bending curve was identifi...
Abstract: In order to solve the problem that the assumption of the straight shaft is inconsistent with the actual situation of marine water-lubricated journal bearings, the journal bending curve was identifi...
TL;DR: In this paper, an efficient cavitation model for fluid film bearings, considering both gaseous and vaporous cavitation, is presented, based on a modification of Elrod's cavitation algorithm.
Abstract: This article presents an efficient cavitation model for fluid film bearings, considering both gaseous and vaporous cavitation. This work presents a modification of Elrod’s cavitation algorithm, whe...
TL;DR: In this article, the authors describe a type of surface fatigue damage that occurs in rolling-sliding contacts operating under thin oil film conditions and apply black oxide (BO) coating to steel rubbing surfaces.
Abstract: Micropitting is a type of surface fatigue damage that occurs in rolling-sliding contacts operating under thin oil film conditions. Application of black oxide (BO) coating to steel rubbing surfaces ...
TL;DR: In this paper, the tribological behavior of Si3N4-hBN composites and polyether ether ketone (PEEK) materials with precorrosion were investigated in seawater and deionized water, respectively.
Abstract: In this article, the tribological behaviors of Si3N4-hBN composites and polyether ether ketone (PEEK) materials with precorrosion were investigated in seawater and deionized water, respectively. Si...
TL;DR: In this article, the failure of moving mechanical components is often accompanied by hydrogen embrittlement caused by hydrogen diffusion in steel, and one considerable mechanism for hydrogen diffusion is its ingress fr...
Abstract: The failure of moving mechanical components is often accompanied by hydrogen embrittlement caused by hydrogen diffusion in steel. One considerable mechanism for hydrogen diffusion is its ingress fr...
TL;DR: In this paper, the mechanical properties of mortise and tenon woodworking joinery in outdoor environments were examined and fundamental data regarding the influence of moisture content was obtained regarding the structural properties of woodworkers' joinery.
Abstract: To closely examine the mechanical properties of mortise and tenon woodworking joinery in outdoor environments, it is essential to obtain fundamental data regarding the influence of moisture content...
TL;DR: In this paper, the authors investigated the dynamic mixed elastohydrodynamic lubrication (DMEHL) behavior of the water-lubricated bearing with unbalanced rotor during start-up.
Abstract: The main purpose of this study is to investigate the dynamic mixed elastohydrodynamic lubrication (DMEHL) behavior of the water-lubricated bearing with unbalanced rotor during start-up. To achieve ...
TL;DR: In this article, the impact of the viscosity and density of transmission fluids on the performance of a hydraulic torque converter was examined and four different transmission fluids were evaluated under different conditions.
Abstract: The impact of the viscosity and the density of transmission fluids on the performance of a hydraulic torque converter was examined. Four different transmission fluids were evaluated under different...
TL;DR: In this article, the reciprocating wear behavior of surface mechanical attrition-treated (SMAT) AISI 316L stainless steel with and without polymer and composite coatings was investigated.
Abstract: The current work investigates the reciprocating wear behavior of surface mechanical attrition–treated (SMAT) AISI 316L stainless steel with and without polymer and composite coatings. The high-perf...
TL;DR: In this paper, the authors characterised a natural sheep wool and compared its properties to those of a range of three different, well-known organic fibers that are typically used in the friction material.
Abstract: The present work characterizes a natural sheep wool and compares its properties to those of a range of three different, well-known organic fibers that are typically used in the friction material pr...
TL;DR: Due to the unique redox characteristic of CeO2, the addition of diesel fuel reduces diesel engine emissions; however, its influence on the friction and wear performance of fuel injection sy as mentioned in this paper.
Abstract: Due to the unique redox characteristic of CeO2, the addition of CeO2 in diesel fuel reduces diesel engine emissions; however, its influence on the friction and wear performance of fuel injection sy
TL;DR: In this article, a model is presented to determine the film thickness decay of grease-lubricated bearings by a loss of lubricant from the bearing, which is caused by base oil evaporation.
Abstract: The film thickness decay of grease lubricated bearings is determined by a loss of lubricant from the bearing. One of these loss mechanisms is base oil evaporation. In this paper, a model is present...