Results 1 to 10 of about 328 (211)

Consideration of Power Transmission Characteristics in a Micro-Gear Train [PDF]

open access: yesMicromachines
Characteristics related to power transmission in the micro-domain, based on dry rolling contact of the gears, were investigated using a 3D-printed gear train with a pitch circle diameter of 84 µm in order to experimentally compare the power transmission ...
Yasuhiko Arai
doaj   +2 more sources

Work of the planetary gear trains as differentials and their capabilities [PDF]

open access: yesMATEC Web of Conferences, 2019
Planetary gear trains can work differently, namely, with F=1 degree of freedom, i.e. as reducers or multipliers, and also with F=2 degrees of freedom, i.e. as differentials.
Arnaudov Kiril   +2 more
doaj   +1 more source

A graph-based approach for detection degenerate structures in multi-planet gear trains

open access: yesCogent Engineering, 2022
A locked chain is an immovable sub-chain within a kinematic chain. The detection of immovable sub-chains is a critical step in the structural synthesis of planetary gear trains (PGTs).
Tamather N. Ali   +2 more
doaj   +1 more source

Dynamic modeling and vibration analysis of a cracked 3K-II planetary gear set for fault detection [PDF]

open access: yesMechanical Sciences, 2021
The 3K planetary gear system is a basic planetary transmission structure with many advantages over the 2K-H planetary gear system. However, the vibration characteristics will be more complicated due to the increase of central gears meshing with each ...
M. Sang   +9 more
doaj   +1 more source

Automation creation method for a double planet carrier gear train transplanting mechanism based on functional constraints [PDF]

open access: yesMechanical Sciences, 2022
In order to satisfy the design requirements of diversified seedling transplanting mechanisms, this paper carried out systematic research on the creation method of planetary gear train mechanisms for transplanting based on the graph theory and the ...
L. Sun, X. Huang, Y. Xu, Z. Ye, C. Wu
doaj   +1 more source

Genetically compatible graphs for planetary gear train synthesis

open access: yesAl-Qadisiyah Journal for Engineering Science, 2022
Planetary gear trains (PGTs) are used in a wide range of mechanical applications. Graphs are used to represent PGTs. PGTs are classified into single-planet and multi-planet gear trains depending on the number of vertices in the second level of the graph.
Hind A. Nafeh, Essam Lauibi Esmail
doaj   +1 more source

Comparison of the Size and Efficiency of a Two-carrier Planetary Gear Train and Kinematically Equivalent Planetary Gear Trains [PDF]

open access: yesActa Technica Corviniensis, 2022
A two-carrier planetary gear train (PGT) developed for a specific purpose is discussed in this paper. This PGT is suitable for applications which require negative transmission ratios in the range from -3 up to -143. The mechanical and dimensional characteristics of the planetary gear train for nominal negative transmission ratios of -30 and -40 have ...
Troha, Sanjin   +3 more
openaire   +4 more sources

THE SELECTION OF OPTIMAL REVERSIBLE TWO-SPEED PLANETARY GEAR TRAINS FOR MACHINE TOOL GEARBOXES

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2020
The application of multi-criteria optimization to two-carrier two-speed planetary gear trains is outlined in this paper. In order to determine the mathematical model of multi-criteria optimization variables, the objective functions and conditions must be
Sanjin Troha   +3 more
doaj   +1 more source

Design of Planetary Gear Train for Geared Rotary Actuator

open access: yesIOP Conference Series: Materials Science and Engineering, 2021
Abstract Geared Rotary Actuators are mechanically operable devices widely used in the aerospace industry so that controlled motion can be provided to secondary flight control surfaces. Their usage can be seen in a variety of applications including powered hinges for aircraft structural movements, they support aerodynamic loads in ...
Yadnik Kude   +2 more
openaire   +1 more source

Multimode dual-motor electric vehicle system for eco and dynamic driving

open access: yesResults in Engineering, 2023
Electric vehicles (EVs) offer benefits in terms of reducing emissions and saving energy over other conventional vehicles. There have been various studies on EVs for energy efficiency and driving performance improvement.
Hyukjoon Kwon   +3 more
doaj   +1 more source

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