Results 21 to 30 of about 558,182 (316)
Coarse Projective kMC Integration: Forward/Reverse Initial and Boundary Value Problems [PDF]
, 2003 In "equation-free" multiscale computation a dynamic model is given at a fine, microscopic level; yet we believe that its coarse-grained, macroscopic dynamics can be described by closed equations involving only coarse variables.
C.W. Gear +28 more
core +1 more source
Lubricants, 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
CFD Analysis on the Heat Dissipation of a Dry-Lubricated Gear Stage
Applied 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
Friction and Temperature Behavior of Lubricated Thermoplastic Polymer Contacts
Lubricants, 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
Bifurcation Analysis of a Coupled Nose Landing Gear-Fuselage System [PDF]
, 2014 Under certain conditions during takeoff and landing, pilots may sometimes experience vibrations in the cockpit. Because the cockpit is located right above the nose landing gear, which is known to potentially be prone to self-excited vibrations at certain
Krauskopf, Bernd +3 more
core +2 more sources
The Gap-Tooth Method in Particle Simulations
, 2003 We explore the gap-tooth method for multiscale modeling of systems represented by microscopic physics-based simulators, when coarse-grained evolution equations are not available in closed form.
C.William Gear +19 more
core +1 more source
Identification and Validation of Linear Friction Models Using ANOVA and Stepwise Regression
Lubricants, 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
Lubricants, 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
Directional gear ratio transmissions [PDF]
, 1984 Epicyclic gear transmissions which transmit output at a gear ratio dependent only upon the input's direction are considered. A transmission housing envelops two epicyclic gear assemblies, and has shafts extending from it.
Lafever, A. E.
core +1 more source
Novel spectral kurtosis technology for adaptive vibration condition monitoring of multi-stage gearboxes [PDF]
, 2016 In this paper, the novel wavelet spectral kurtosis (WSK) technique is applied for the early diagnosis of gear tooth faults. Two variants of the wavelet spectral kurtosis technique, called variable resolution WSK and constant resolution WSK, are ...
Barbieri, M. +5 more
core +1 more source