Results 141 to 150 of about 595,906 (266)
LubricantsThe temperature field distribution of high-speed double-helical gears under oil injection lubrication is investigated by obtaining heat flux density and convective heat transfer coefficients through theoretical calculations and CFD (computational fluid ...
Xiaozhou Hu, Yangmei Yuan, Jie Chen
doaj +1 more source
Development of a full-scale transmission testing procedure to evaluate advanced lubricants [PDF]
Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program.
Decker, Harry J. +2 more
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Journal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.Abstract Stromboli volcano (Italy) is known for its persistent explosive activity punctuated by more energetic explosions called paroxysms. During paroxysms, pyroclastic density currents, triggered by the gravitational instability of hot pyroclastic deposits, can occur.
Augusto Neri +10 more
wiley +1 more source
Analysis of Influence Factor of Oil Jet Lubrication Impingement Depth of Aviation Spur Gear
Jixie chuandong, 2017 When the nozzle is decorated without offset and incline,gears with transmission ratios above 1 won’t be efficiently lubricated. In order to solve this problem,analytic method is adopted to establish mathematical model,basing on the geometric relationship
Wang Xin, Liu Shaojun, Hu Yun
doaj
Rolling-element bearings: A review of the state of the art [PDF]
Some of the research conducted which has brought rolling-element technology to its present state is discussed. Areas touched upon are material effects, processing variables, operating variables, design optimization, lubricant effects and lubrication ...
Anderson, W. J., Zaretsky, E. V.
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Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 3, May 2026.ABSTRACT The migration of intentionally and non‐intentionally added substances (IAS/NIAS) from food packaging into foodstuffs presents a significant challenge to consumer health and food safety. Accurate and comprehensive identification of these chemical migrants is therefore paramount.
Xue‐Chao Song +5 more
wiley +1 more source
Tribological Performance of Electrochemically Textured EN-GJS 400-15 Spheroidal Cast Iron
LubricantsThis paper presents an experimental study of uniform and variable texture patterns on a honed EN-GJS 400-15 spheroidal graphite cast iron surface. Textured samples were fabricated using a CNC electrochemical jet machining technique and tested against a ...
Peng Jiang +2 more
doaj +1 more source
Predicted and experimental performance of jet-lubricated 120-millimeter-bore ball bearings operating to 2.5 million DN [PDF]
Bearing inner- and outer-race temperatures and friction power losses were calculated using two computer programs. The values obtained were compared with previously reported experimental data for 120 mm bore bearings which operated at thrust loads to 22 ...
Coe, H. H., Zaretsky, E. V.
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Modeling Fiber Dispersion in a Single‐Screw Extruder for Long Fiber‐Reinforced Thermoplastics
Polymer Composites, Volume 47, Issue 8, Page 7675-7686, 20 April 2026.Fiber dispersion throughout the screw channel ABSTRACT Understanding the mechanics of fiber attrition during the plasticizing process is important in predicting the strength of long fiber‐reinforced thermoplastics (LFT) composites. Fiber dispersion has been found to impact fiber damage during processing and therefore final fiber length in the final ...
Hector Sebastian Perez +4 more
wiley +1 more source
Lubrication and performance of high-speed rolling-element bearings [PDF]
Trends in aircraft engine operating speeds have dictated the need for rolling-element bearings capable of speeds to 3 million DN. A review of high-speed rolling-element bearing state-of-the-art performance and lubrication is presented. Through the use of
Coe, H. H. +2 more
core +1 more source