Results 101 to 110 of about 77,448 (312)

Simulation of rolling contact fatigue strength for traction drive elements (comparison with fatigue test)

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
A simulation of the rolling contact fatigue strength of a traction drive element was developed. This simulation accounts for both the distribution of sizes of inclusions in the element material and the influence of traction forces at the element surface.
Yukihito NARITA   +4 more
doaj   +1 more source

Rolling-element fatigue lives of AISI 52100 steel balls with several synthetic lubricants [PDF]

open access: yes
Rolling-element fatigue tests were run with three synthetic lubricants with and without antiwear additives and with a paraffinic mineral oil at race temperatures of 336 to 353 K (146 146 to 175 F).
Parker, R. J.
core   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

NUMERICAL AND ANALYTICAL PROBLEMS OF FATIGUE STRENGTH IN ROLLING BEARINGS [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2014
The aim of the work is to create an algorithm of fatigue life prediction for typical rolling bearings. The proposed approach makes use of various, well established hypothesis for multiaxial fatigue applied in engineering calculations. In the first part
Paweł ROMANOWICZ, Bogdan SZYBIŃSKI
doaj  

Triboelectric Tactile Transducers for Neuromorphic Sensing and Synaptic Emulation: Materials, Architectures, and Interfaces

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Triboelectric nanogenerators are vital for sustainable energy in future technologies such as wearables, implants, AI, ML, sensors and medical systems. This review highlights improved TENG neuromorphic devices with higher energy output, better stability, reduced power demands, scalable designs and lower costs.
Ruthran Rameshkumar   +2 more
wiley   +1 more source

Rolling Contact Fatigue Life of Rail for Different Slip Conditions

open access: yesLatin American Journal of Solids and Structures
A three-dimensional elastic-plastic finite element analysis (FEA) is carried out to estimate the rolling contact fatigue (RCF) crack initiation life for varied slip range on the rail arising from operational variations.
Jay Prakash Srivastava   +3 more
doaj   +1 more source

Multiaxial Fatigue Life Calculation Model for Engineering Components in Rolling-Sliding Contact

open access: yesMATEC Web of Conferences, 2018
Number of important engineering components and elements such as gears, rollers, bearings operate in conditions of rolling-sliding contact loading. Determination of fatigue lives of such components and elements is very important for engineering practice ...
Basan Robert, Marohnić Tea
doaj   +1 more source

Characterization of wear debris generated in accelerated rolling-element fatigue tests [PDF]

open access: yes
A ferrographic analysis was used to determine the types and quantities of wear debris generated during accelerated rolling contact fatigue tests. The five-ball rolling contact fatigue tester was used.
Jones, W. R., Jr., Parker, R. J.
core   +1 more source

Copper Contact for Perovskite Solar Cells: Properties, Interfaces, and Scalable Integration

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Copper electrodes, as low‐cost, scalable contacts for perovskite solar cells, offer several advantages over precious metals such as Au and Ag, including performance, cost, deposition methods, and interfacial engineering. Copper (Cu) electrodes are increasingly considered practical, sustainable alternatives to noble‐metal contacts in perovskite solar ...
Shuwei Cao   +4 more
wiley   +1 more source

Effect of speed and press fit on fatigue life of roller-bearing inner-race contact [PDF]

open access: yes
An analysis was performed to determine the effects of inner ring speed and press fit on the rolling element fatigue life of a roller bearing inner race contact.
Coe, H. H., Zaretsky, E. V.
core   +1 more source

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