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Keywords: temperature
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Journal Articles
Article Type: Research Papers
J. Tribol. December 2022, 144(12): 121202.
Paper No: TRIB-22-1166
Published Online: August 24, 2022
... of natural silicate on braking dynamics as evident from performance sensitivity analysis, braking load, sliding speed, and temperature. The nature of sliding induced tribo-layers was ascertained from elemental mapping by EDX and Raman spectroscopy indicating the friction composition of tribo-layer...
Includes: Supplementary data
Journal Articles
Article Type: Research Papers
J. Tribol. August 2022, 144(8): 081201.
Paper No: TRIB-21-1514
Published Online: February 14, 2022
...Sheng Li; Ali Kolivand; Jing Wei This study establishes the critical temperature of scuffing for contacts of gears made of AISI 8620 steel alloy, lubricated by Dexron 6 oil. Through thermal mixed elastohydrodynamic lubrication modeling, experimental scuffing failures are simulated to determine...
Journal Articles
Article Type: Research Papers
J. Tribol. June 2020, 142(6): 061401.
Paper No: TRIB-19-1345
Published Online: February 26, 2020
...Pankaj Chhabra; Manpreet Kaur Wear and surface damage of tools (die materials) in the hot metal forming industry is a critical problem observed and is producing an adverse effect on the process economy. The problem occurs when tool and workpiece interact at higher temperatures. However...
Journal Articles
Article Type: In-Brief
J. Tribol. April 2013, 135(2): 021502.
Paper No: TRIB-12-1058
Published Online: February 22, 2013
...) and R ij represents thermal resistances defined by Eqs. (26) – (28) . R i 1 and R i 2 are the resistances associated with the shearing zone and the solidlike portion of the film, respectively, while R i 3 represents the temperature gradient between the surfaces and the bulks. Fig. 6...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2010, 132(4): 041601.
Published Online: September 10, 2010
...B. Saleh; A. Abouel-Kasem; A. Ezz El-Deen; S. M. Ahmed The effect of temperature on the wear particles produced by vibratory cavitation erosion tests on Al-99.92 in distilled water was analyzed. Scanning electron microscope images of wear particles were obtained, forming a database for further...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2008, 130(3): 031404.
Published Online: June 23, 2008
... the initial differences of surfaces temperature for the contacting volumes. The goal of this paper is to bring information or complete existing theories ( Blok, H. A., 1937, “Theoretical Study of Temperature Rise at Surface at Actual Contact Under Oilness Lubricating Conditions,” I. Mech. E. Conf. Publ., 2...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2008, 130(1): 011008.
Published Online: December 26, 2007
... and the slider’s flying attitude adjusts to balance the forces from the suspension. A method for calculating this air bearing response to humid air is presented. Using two air bearing designs, several test cases are analyzed to illustrate the air bearing response for various temperatures and humidity levels...
Journal Articles
Article Type: Technical Briefs
J. Tribol. January 2007, 129(1): 205–208.
Published Online: July 3, 2006
... one. The wear after more than 2000 cycles was measured and used to generate numerical simulations. The aim here was to compare experimental data with theoretical results. It was observed that hydrodynamic pressure increases, whereas the temperature at the film/bush interface slightly decreases on both...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2006, 128(1): 49–58.
Published Online: December 14, 2005
...S. B. Glavatskih; Michel Fillon Results of a combined theoretical and experimental investigation into the operation of thrust bearings with polytetrafluoroethylene (PTFE)-faced pads are reported. Bearing performance is analyzed in terms of temperature, power loss, oil film thickness and pressure...
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2003, 125(1): 110–120.
Published Online: December 31, 2002
...Sankar K. Mohan; Bandaru V. Ramarao Rotary viscous couplings with interleaved, perforated plates and viscous fluids are used in automotive systems to transmit torque. During operation, viscous dissipation raises fluid temperature, lowers fluid viscosity and causes the torque transmitted to drop...
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2003, 125(1): 60–69.
Published Online: December 31, 2002
... of seals for aircraft actuation assemblies in a broad range of temperatures (−55°C to +135°C) and sealed pressures (1–50 MPa or more). The model is used to calculate the contact pressures and film thickness maps as well as the leakage rates and friction for the dynamic or static contact between a seal...
Journal Articles
Article Type: Technical Papers
J. Tribol. July 2002, 124(3): 429–437.
Published Online: May 31, 2002
... state solution of the governing equations by considering non-axisymmetric perturbations. The results indicate that above critical values of temperature and sliding speed the response of the plate becomes unstable and exhibits large deformations. Two mechanisms account for this behavior: thermal buckling...
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2001, 123(1): 75–82.
Published Online: September 26, 2000
...Jiaxin Zhao, Graduate Research Assistant; Farshid Sadeghi, Professor; Michael H. Hoeprich A numerical model of surface temperature rise in elastohydrodynamic lubrication start up process is presented. The frictional heat flux is modeled as the product of lubricated contact pressure or solid contact...
Topics: Temperature
Journal Articles
Article Type: Technical Papers
J. Tribol. January 2000, 122(1): 119–123.
Published Online: May 25, 1999
...Mikael Holgerson Automatic transmission gear shifts are handled by wet clutches, which determine the smoothness. The clutch face temperatures during the engagements are often an important parameter for the total clutch life. A wet clutch test rig has been used to evaluate how a wet clutch...