Results 31 to 40 of about 128,076 (318)

Potential of oil-lubricated cylindrical plastic gears

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2018
Bending strength of injection molded polyacetal test gears is investigated in back-to-back testing using oil-lubrication. To validate state of the art calculation methods, tooth geometries with a variable number of teeth are investigated, maintaining a ...
Christian HASL   +4 more
doaj   +1 more source

Observations of acoustic emission activity during gear defect diagnosis. [PDF]

open access: yes, 2003
It is widely recognised that acoustic emission (AE) is gaining ground as a non- destructive technique (NDT) for health diagnosis on rotating machinery.
Mba, David   +3 more
core   +1 more source

Influence of additional surface finishing to the material properties and the flank load carrying capacity of case-hardened gears with grinding burn

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
The grinding of case-hardened gears after the heat treatment ensures a high quality regarding the gear geometry and tooth surface topography. If the limits of the gear material are exceeded during this process, the mechanical and thermal influence from ...
Johannes KOENIG   +3 more
doaj   +1 more source

Influence of triangular rib on bending stress strength and tooth deflection for small size and high strength spiral bevel gear supported by ribs fabricated by five-axis controlled machining center

open access: yesNihon Kikai Gakkai ronbunshu, 2022
We have developed a small size and high strength spiral bevel gear fabricated by five-axis controlled machining center. In the present report, we propose a novel spiral bevel gear with the rib at the end of face width to reinforce the tooth bending ...
Masahiro SAITO   +3 more
doaj   +1 more source

Influence of Variable Side-Stay Geometry on the Shimmy Dynamics of an Aircraft Dual-Wheel Main Landing Gear [PDF]

open access: yes, 2013
Commercial aircraft are designed to fly but also need to operate safely and efficiently as vehicles on the ground. During taxiing, take-off, and landing the landing gear must operate reliably over a wide range of forward velocities and vertical loads ...
Howcroft, Chris   +3 more
core   +1 more source

On the Simulation of the Micro-Contact of Rough Surfaces Using the Example of Wet Friction Clutch Materials

open access: yesLubricants, 2019
Friction behavior in a sliding contact is strongly influenced by the surface topography of the bodies in contact. This also applies to friction clutches. Even small differences in surface topography may cause significant differences in friction behavior.
Katharina Voelkel   +5 more
doaj   +1 more source

Friction and Temperature Behavior of Lubricated Thermoplastic Polymer Contacts

open access: yesLubricants, 2020
This work focuses on the friction and temperature behavior of thermo-elastohydrodynamically lubricated (TEHL) contacts under rolling-sliding conditions.
Stefan Reitschuster   +3 more
doaj   +1 more source

Identification and Validation of Linear Friction Models Using ANOVA and Stepwise Regression

open access: yesLubricants, 2022
For wet disk clutches, the energy input is strongly influenced by its friction behavior. However, the friction behavior cannot be simulated and therefore is mostly derived from experimental data for specific clutch systems.
Patrick Strobl   +6 more
doaj   +1 more source

Bearing Power Losses with Water-Containing Gear Fluids

open access: yesLubricants, 2020
Lubricants have a large influence on gearbox power losses. Recent investigations at a gear efficiency test rig have shown the high potential of water-containing gear fluids in drastically reducing load-dependent gear losses and temperatures.
Mustafa Yilmaz   +3 more
doaj   +1 more source

CFD Analysis on the Heat Dissipation of a Dry-Lubricated Gear Stage

open access: yesApplied Sciences, 2022
Power losses in gearboxes result in frictional heating. Sufficient heat transfer from the gearbox to the environment is required for reliable operation. The heat dissipation from gears is linked to their interaction with fluids in the gearbox.
Lucas Hildebrand   +4 more
doaj   +1 more source

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