Results 1 to 10 of about 9,011 (167)

Planetary transmission performance tests at very low temperatures. [PDF]

open access: yesSci Rep, 2022
AbstractThis article presents the results of a study on resistance to motion in a multi-stage planetary transmission, built with lightweight structural materials such as aluminum alloy 2017, with bearing nodes featuring steel ball bearings made from X65Cr14 alloy and lubricated with molybdenum disulfide powder.
Sikorski J, Pawlowski W.
europepmc   +4 more sources

Fatigue Reliability Prediction Method of Large Aviation Planetary System Based on Hierarchical Finite Element

open access: yesMetals, 2022
The reliability of planetary equipment determines the economic affordability and service safety, to a large extent, for a helicopter transmission system.
Ming Li, Yuan Luo, Liyang Xie
doaj   +1 more source

Fault diagnosis method of shearer planetary gear transmission systemunder variable speed conditions

open access: yesGong-kuang zidonghua, 2021
When the shearer cuts the coal seam, the planetary gear transmission system of the traction unit is in a variable speed working condition, and the structure of the planetary gear transmission system is complicated.
MAO Qinghua1,2,   +5 more
doaj   +1 more source

On stochastic processes in the dynamics of planetary transmissions

open access: yesTehnika, 2023
In addition to the theoretical analysis of the nonlinear dynamics of dissipative mechanical systems with the possibility of stochastic and chaotic processes, the paper also includes a numerical experimental example of a planetary transmission. The most common non-linear effects of operation and their influence on the behavior of the planetary gear as a
Knežević Rade S.   +2 more
openaire   +2 more sources

Performances of Planetary Magnetorheological Transmission Devices

open access: yesFrontiers in Materials, 2022
Magnetorheological transmission devices (MRTDs) are a type of power transmission device using magnetorheological fluids (MRFs) as the transmission medium, which have the advantages of rapid response and continuously adjustable output performances. A new type of structure of planetary MRTDs is proposed to improve the performances of MRTDs in this study.
Xuli Zhu   +5 more
openaire   +2 more sources

Planetary Torus Helical Transmission

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The paper describes design considerations for the transmission with fixed intermediate rolling bodies with grooves cut in a torus. Equations of helices used for cutting grooves have been derived. The transmission with the proposed design has a wide range of reduction ratios and small dimensions with high load capacity.
openaire   +1 more source

Vibration Reduction Design of Marine Planetary Herringbone Gear Transmission Based on Phase Tuning Theory

open access: yesJixie chuandong, 2023
Planetary herringbone gears are increasingly used in the high-power marine transmission system. In order to meet the noise requirements of transmission system of modern ships, the vibration reduction design of planetary herringbone gear transmission ...
Zhao Tianyu   +3 more
doaj  

Design and calculation of planetary transmission with bevel gears

open access: yesTehnički glasnik, 2019
In this paper, the design and calculation of planetary transmission with bevel gears for road vehicles is presented. It must transfer power to the wheels with the possibility that wheels can rotate at different speeds. The basic calculation of transmission is performed for the drive machine, where an internal combustion engine is chosen, and for the ...
Sabo, Ivan   +3 more
openaire   +4 more sources

Research on Kinematics and Efficiency Calculation of Binary Logic Planetary Gearbox Based on Graph Theory

open access: yesApplied Sciences
In this paper, the graph theory model of the kinematics of the double internal meshing planetary gear is established by splitting the k value of the planetary gear, the system matrix of the dual-state logic planetary gear transmission is assembled, the ...
Qiang Zhang   +4 more
doaj   +1 more source

Opportunities for the Application of Reversing Planetary Transmissions [PDF]

open access: yes, 2022
The application of planetary gear trains (PGTs) offers numerous benefits in comparison to conventional gear trains. For example, a multi-carrier planetary gear train may be built by linking the shafts of different component PGTs, and several transmission ratios may be achieved by providing links between different elements of the component PGTs ...
Vrcan, Željko   +3 more
openaire   +2 more sources

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