Consideration of Power Transmission Characteristics in a Micro-Gear Train [PDF]
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
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Work of the planetary gear trains as differentials and their capabilities [PDF]
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
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A graph-based approach for detection degenerate structures in multi-planet gear trains
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
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Dynamic modeling and vibration analysis of a cracked 3K-II planetary gear set for fault detection [PDF]
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
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Automation creation method for a double planet carrier gear train transplanting mechanism based on functional constraints [PDF]
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
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Genetically compatible graphs for planetary gear train synthesis
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
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Comparison of the Size and Efficiency of a Two-carrier Planetary Gear Train and Kinematically Equivalent Planetary Gear Trains [PDF]
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
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THE SELECTION OF OPTIMAL REVERSIBLE TWO-SPEED PLANETARY GEAR TRAINS FOR MACHINE TOOL GEARBOXES
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
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Design of Planetary Gear Train for Geared Rotary Actuator
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
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Multimode dual-motor electric vehicle system for eco and dynamic driving
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
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