Results 21 to 30 of about 5,948 (253)
Advances in Mechanical Engineering, 2018 The concept of multi-attribute topological graph is proposed in this article to represent the characteristics of both structure and state for typical one-degree-of-freedom planar spur closed planetary gear trains.
Yahui Cui +4 more
doaj +1 more source
Modeling of the process of gear shifting in planetary gear trains of motor vehicles
Vojnotehnički Glasnik, 2011 Gear boxes, i. e. the realization of their functions, especially gear shift, have a big impact on vehicle operation quality through their effects on the performance of vehicles and their comfort.
Aleksandar R. Grkić +2 more
doaj +1 more source
Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]
, 2011 The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Cheng, Zhe +3 more
core +1 more source
Comparison of the Size and Efficiency of a Two-carrier Planetary Gear Train and Kinematically Equivalent Planetary Gear Trains [PDF]
Acta 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
New Method for Isomorphism Identification of Planetary Gear Trains based on Traversing Loop
Jixie chuandong, 2020 Isomorphism identification is one of the indispensable processes in structure synthesis of planetary gear trains. It is of great significance for the creation of novel planetary gear train with excellent transmission characteristics.
Jiawen Ding, Wei Sun
doaj
Experimental investigations on churning power losses generated in a planetary gear set
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2017 This study aims to experimentally investigate churning power losses generated by a planetary gear set which is splash lubricated. To this end, a specific test rig has been used to operate a planetary gear train under unloaded conditions in various ...
Jean-Baptiste BONI +3 more
doaj +1 more source
Journal of Agricultural Engineering, 2022 This study aimed at the problems of unequal speed transmission ratio mutual restriction and side gap accumulation of the transplanting mechanism with single-degree-of-freedom K-H-V non-circular planetary gear train, which leads to poor trajectory and ...
Maile Zhou +4 more
doaj +1 more source
Biological Reviews, EarlyView.ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson +9 more
wiley +1 more source
Advances in Mechanical Engineering, 2017 The planetary gear trains are commonly used in automotive transmissions. A practical method to analyze planetary gear train for speed ratio determination is lever analogy.
Y Gene Liao, Ming-Yen Chen
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The spread of non‐native species
Biological Reviews, EarlyView.ABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Phillip J. Haubrock +16 more
wiley +1 more source