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Keywords: lubricating oils
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Journal Articles
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 042101.
Published Online: October 10, 2011
... dipped in n-heptane for 2 to 3 s to remove excess oil from the surface prior to the surface roughness measurement. 17 01 2011 12 08 2011 10 10 2011 10 10 2011 automotive components engines friction lubricating oils lubrication molybdenum compounds organic compounds...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2011, 133(4): 041801.
Published Online: October 6, 2011
... of the sealing contact is due to the migration of contaminant particles. The migration reduces the probability of particles to reach the sealing and bearing contacts. 27 05 2011 27 05 2011 06 10 2011 06 10 2011 greases lubricating oils organic compounds probability rolling...
Journal Articles
Article Type: Technology Review
J. Tribol. October 2011, 133(4): 044001.
Published Online: October 6, 2011
... lubricating oils maintenance engineering photoacoustic spectra sensors wind power wind turbines condition monitoring gearbox wind turbine inline online oil analysis particulate analysis FITR spectroscopy photoacoustic spectroscopy sensors fiber optics Ensuring reliability...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031703.
Published Online: July 28, 2011
...Satish C. Sharma; E. Rajasekhar Nicodemus; Nathi Ram The present work aims to analytically study the performance of misaligned four-pocket, membrane compensated, hybrid journal bearing system operating with micropolar lubricant. In the present study, the flow characteristic of the lubricating oil...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031503.
Published Online: July 21, 2011
.... and Higginson , G. R. , 1966 , Elastohydrodynamic Lubrication , Pergamon , London . 27 Roelands , C. J. A. , Vulgter , J. C. , and Waltermann , H. I. , 1963 , “The Viscosity Temperature Pressure Relationship of Lubrication Oils and its Correlation With Chemical Constitution...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031701.
Published Online: July 12, 2011
... angle groove drag reduction contact angle discs (structures) drag reduction fluids inclusions lubricating oils lubrication plates (structures) surface tension two-phase flow 18 09 2010 07 05 2011 12 07 2011 12 07 2011 Figure 2 presents typical data...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2011, 133(3): 031501.
Published Online: June 17, 2011
... to vary from 0.01 to 0.8 μ m, and the proportion of the load supported by asperity contact varied from 50% to 0%. 30 12 2010 06 04 2011 17 06 2011 17 06 2011 elastic moduli film flow flow separation flow visualisation hydrodynamics liquid films lubricating oils rheology...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2011, 133(2): 021802.
Published Online: March 22, 2011
.... , Akashi , T. , and Yoshioka , T. , 1990 , “ Proposal of New Criteria and Test Methods for the Dynamic Performance of ATF ,” SAE Technical Paper No. 900810. Miyazaki , M. , and Hoshino , M. , 1988 , “ Evaluation of Vibration-Preventive Properties of Lubricating Oils in Wet Friction...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2011, 133(2): 021801.
Published Online: March 18, 2011
... of the products was analyzed by means of Fourier transformation infrared spectrometry, elemental analysis, and so on. The thermal stability of the products was evaluated by thermogravimetric analysis. The tribological properties of the synthesized borate esters as lubricating oil additives in liquid paraffin were...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2010, 132(4): 041602.
Published Online: September 23, 2010
... that of the bare oil. However, the severity of frictional heating decreased in general in the oil containing solid lubricant particles. Seizure brought about high frictional heating and wear rate. 23 12 2009 16 07 2010 23 09 2010 23 09 2010 cast iron lubricating oils lubrication...
Journal Articles
Article Type: Research Papers
J. Tribol. July 2010, 132(3): 032101.
Published Online: June 16, 2010
... study assessing the additive/additive and additive/surface interactions, and their influences on the durability of a low hydrogen-containing ( 15 at . % hydrogen) metal-free DLC coating (a-C:15H). In this study, lubricating oils containing a zinc dithiophosphate (ZDDP) antiwear additive...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2010, 132(1): 011104.
Published Online: December 10, 2009
.... Yet, a continuous supply of lubrication oil is necessary, even during disengagement. This study examines the underlying processes responsible for the oil flow between grooved disks and possible aeration through a combination of experiments and numerical computations. A two-dimensional model...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2010, 132(1): 011703.
Published Online: November 17, 2009
... using the divergence formulation (DF) method ( 7 ), which discretizes the flow rate continuous conditions in correspondence to the Reynolds equation instead of solving the Reynolds Eq. 1 directly. The inflow and the outflow of lubricating oil in small regions under consideration (I–IV, which...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2010, 132(1): 011601.
Published Online: November 9, 2009
... element analysis friction lubricating oils shear strength surface roughness tip test friction measurement tip distance backward extrusion surface roughness surface topology In spite of the extensive literature available on friction studies, specific experimental technique...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 022202.
Published Online: February 26, 2009
... design engineering gears lubricating oils lubrication gears spin power losses oil churning oil pocketing Power losses of a gearbox containing several gear pairs that are supported by shafts and rolling element bearings can be classified into two groups. The first group is comprised...
Journal Articles
Article Type: Research Papers
J. Tribol. April 2009, 131(2): 022201.
Published Online: February 26, 2009
... 2009 26 02 2009 drag gears lubricating oils lubrication mechanical contact power transmission (mechanical) gears spin power losses oil churning oil pocketing As fossil-based fuel resources are dwindling and environmental regulations are becoming increasingly stringent...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011705.
Published Online: December 4, 2008
... lubricating oils lubrication machine bearings journal bearing stability oil supply groove bearing orientation angle starved lubrication flooded lubrication small bore In recent years, the trend of size reduction, increasing the speed of operation, and enhancing the precision...
Journal Articles
Article Type: Research Papers
J. Tribol. January 2009, 131(1): 011801.
Published Online: December 3, 2008
... corrosion protective coatings friction lubricating oils scanning electron microscopy thermal stability wear resistant coatings X-ray photoelectron spectra rapeseed oil benzotriazolyl polysulfides anticorrosive capability tribological properties In gear oil and hydraulic oil, extreme...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2008, 130(4): 041801.
Published Online: August 5, 2008
... demonstrated excellent potential for use as lubricants in industrial applications such as sheet metal forming. 20 05 2007 10 01 2008 05 08 2008 aluminium copper friction liquid mixtures lubricating oils lubrication mechanical contact mixing particle size powders rheology...
Journal Articles
Article Type: Research Papers
J. Tribol. October 2008, 130(4): 042301.
Published Online: August 4, 2008
... of the Effect of Chemical Structure on Friction and Wear: Part 2-Vegetable Oils and Esters ,” Lubr. Eng. 0024-7154 , 57 ( 5 ), pp. 20 – 26 . 12 08 2007 04 08 2008 abrasion lubricating oils lubrication materials testing scanning electron microscopy steel thin films transmission...