Results 21 to 30 of about 875,699 (243)
Gradual development of S-shaped gears [PDF]
MATEC Web of Conferences, 2022 Search for an improved gear tooth flank shape arose from heavy industry problems rolling mills. Original involute gears suffered severe flank damages.
Hlebanja Gorazd
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High-Power Hybrid Nanogenerator With Multi-Degree-of-Freedom Mechanical Coupling for Harvesting Water Wave Energy. [PDF]
Adv Sci (Weinh)A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Ding S +9 more
europepmc +2 more sources
Journal of Computational Design and Engineering, 2023 Abstract Gear-manufacturing quality affects the load sharing between the meshing gears as well as the load distribution along the width of the tooth. This study aims to investigate the effect of gear-manufacturing quality on the mechanical and thermal states of polymer-gear pairs and consequently on their lifetime.
Zorko, Damijan +2 more
openaire +4 more sources
Seeded fault detection on helical gears with acoustic emission [PDF]
, 2009 Acoustic emission (AE) is one of many technologies for health monitoring and diagnosis of rotating machines such as gearboxes. Although significant research has been undertaken in understanding the potential of AE in monitoring gearboxes this has been
Mba, David, Eftekharnejad, Babak
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Influence of Metal Gear Tooth Geometry on Load and Wear within Metal-Polymer Gear Pairs
Applied Sciences, 2021 Gear pairs made of the material pairing metal-polymer provide advantages, such as a reduced weight, beneficial damping properties and the possibility to be operated in dry running conditions.
Andreas Rohrmoser +5 more
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Problems of Polymer Gears [PDF]
, 2021 Tato diplomová práce se zabývá problematikou ozubených kol z polymerů, popisuje možnosti použití, zlepšení geometrie a způsoby porušení těchto kol. Dále jsou popsány polymery vhodné pro plastové ozubení a možnosti testování těchto kol.
Milan Boštička
core
Different teeth profile shapes of polymer gears and comparison of their performance
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017 This article presents a lifespan testing analysis of polymer gears manufactured by cutting. Compared to injection molding, machine cutting provides higher accuracy of gear geometry. Two different tooth flank geometries were tested; i.e.
Damijan ZORKO +3 more
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Analysis of Transient Elastohydrodynamic Lubrication of Asymmetric Polymer Gear
Jixie chuandong, 2021 Polymer gears are light and corrosion resistant， which can reduce noise and improve economic benefits. Correspondingly， polymer gear teeth are weaker than metal ones， so asymmetric design is adopted to improve the strength of polymer gear.
Mingyu Zuo +5 more
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Investigation of the Durability and Performance of Gears Made of Glass Fiber, Carbon and Bronze-Reinforced Polytetrafluoroethylene Matrix Composite Material [PDF]
Archives of Metallurgy and MaterialsPolymer gears are often used in power transmission due to their numerous advantages. Heat accumulates on polymer gears during operation. Over time, this accumulated heat leads to damage; and shortens the service life of the gears.
R. Yakut, H. Düzcükoğlu, H. Akkuş
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Effect of friction on the contact stress of a coated polymer gear
Friction, 2020 Polymer gears are used extensively in various applications. However, durability issues have been emerging because of friction at gear tooth contact areas. To extend the lifetime of polymer gears, a low-frictional coating has been considered as a possible
Su-Min Bae, Kuk-Jin Seo, Dae-Eun Kim
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