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Engineering ProceedingsThe difficulty in designing gears to be installed in electric vehicles is caused by the fact that the efficiency of gears is generally treated as a constant value in the entire operating range, while these show significant differences in different ...
József Polák
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Effect of bearing types on performance of bearings for gear units of railway vehicles
Nihon Kikai Gakkai ronbunshu, 2022 Helical gears are commonly used in the gear units of railway vehicles in Japan, and the bearing types used for the gear units are tapered roller bearings.
Ken TAKAHASHI +2 more
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The Influence of the Bearing Lifetime on the Performance of Universal Gear Drives with High Gear Ratio Values [PDF]
MATEC Web of Conferences, 2019 The problem of defining the load (nominal torque on the output shaft - T2N) of universal gear drives depending on the size of the gear ratio is analysed in this paper.
Rackov Milan +8 more
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2020 In Japan, most of the gear units for transmitting driving force in railway vehicles employ one-stage speed reducers. The gear unit is composed of a pinion connected to a traction motor via a coupling mechanism, a gear installed on an axle, and a gear ...
Ken TAKAHASHI +2 more
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Calculation of wear products falling into the oil as a result of gear teeth wear [PDF]
E3S Web of ConferencesThe article presents an overview of experimental studies of gear tooth wear, which results in the loss of wear products in the oil unit. The results of experimental studies on the wear of the tooth heads of the driving gears and the knives of the driven ...
Juraeva Gulchehra +3 more
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On the standardization of the fishing effort [PDF]
Acta Amazonica, 2000 In this note we demonstrate that the use of an index to standardize the fishing effort using the cpue of a standard vessel or gear is mistaken, once the cpues- catch per unit of total effort after standardization is similar to cpues - catch per unit of ...
Álvaro Carvalho de LIMA +4 more
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MATEC Web of Conferences, 2018 A mechanism consisting of a deformable surface and a gear unit with a curve is considered. An incompressible viscous liquid is applied to the surface. The gear unit rotates or moves along the surface.
Zavyalov Oleg
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Nihon Kikai Gakkai ronbunshu, 2019 If bearings for gear units of railway vehicles are damaged by seizing, parts of the bearings come off and damage the gear and the gear box, which may lead to the leakage of the gear oil and the defective rotation of the wheel sets.
Ken TAKAHASHI +2 more
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Adaptive Wavelet Transform Method to Identify Cracks in Gears
EURASIP Journal on Advances in Signal Processing, 2010 Many damages and faults can cause problems in gear unit operation. A crack in the tooth root is probably the least desirable among them. It often leads to failure of gear unit operation. By monitoring vibrations, it is possible to determine the presence
Belsak Ales, Flasker Joze
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Gear Unit Housing Effect on the Noise Generation Caused by Gear Teeth Impacts
Strojniški vestnik – Journal of Mechanical Engineering, 2012 The basic hypothesis of the paper is that machine part surfaces are membranes that divide inner and outer space, receive disturbance power from inner space and emit it to the surroundings. Additionally, machine systems operation causes numerous disturbances such as collisions, sliding, rolling, etc.
Ognjanović M., Ciric-Kostic, Snezana
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