Results 11 to 20 of about 4,786 (111)

AN APPLICATION OF MULTICRITERIA OPTIMIZATION TO THE TWO-CARRIER TWO-SPEED PLANETARY GEAR TRAINS

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2017
The objective of this study is the application of multi-criteria optimization to the two-carrier two-speed planetary gear trains. In order to determine mathematical model of multi-criteria optimization, variables, objective functions and conditions ...
Jelena Stefanović-Marinović   +2 more
doaj   +1 more source

Analysis of multi-speed transmission and electrically continuous variable transmission using lever analogy method for speed ratio determination

open access: yesAdvances 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
doaj   +1 more source

Innovative design of a transmission mechanism for variable speed wind turbines

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2015
An innovative transmission mechanism, referred to here as an independently controllable transmission (ICT), for application in variable speed wind turbines is described.
Guan-Shyong HWANG, Chung-Chi LIN
doaj   +1 more source

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

open access: yes, 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

Kinematic analysis of complex gear mechanisms [PDF]

open access: yes, 2010
This paper presents a general kinematic analysis method for complex gear mechanisms. This approach involves the null-space of the adjacency matrix associated with the graph of the mechanism weighted by complex coecients.
Alazard, Daniel, Penaud, Julie
core  

Kinematic Operating Modes of Two-Speed Two-Carrier Planetary Gear Trains with Four External Shafts [PDF]

open access: yes, 2014
Two-speed planetary gear trains with four external shafts, composed of two simple planetary gear trains, are considered in this paper. The labelling system of these trains is defined and all possible variants are determined.
Dimitar Karaivanov   +2 more
core   +1 more source

A new manual wheelchair propulsion system with self-locking capability on ramps [PDF]

open access: yes, 2018
A wheelchair user faces many difficulties in their everyday attempts to use ramps, especially those of some length. The present work describes the design and build of a propulsion system for manual wheelchairs for use in ascending or descending long ...
Alonso, Francisco Javier   +3 more
core   +3 more sources

SELECTION OF THE TWO–CARRIER SHIFTING PLANETARY GEAR TRAIN CONTROLLED BY CLUTCHES AND BRAKES [PDF]

open access: yes, 2012
In this paper, the methodology of establishing two-carrier planetary gear trains (PGT) equipped with a speed-changing system which contains breaks and clutches is considered.
Miloš Milovančević   +2 more
core   +1 more source

Design and Development of Rice Pot-Seedling Transplanting Machinery Based on a Non-Circular Gear Mechanism

open access: yesApplied Sciences
Transplanting rice pot seedlings without damaging the roots, which promotes early tillering, is an effective measure to enhance rice yield and quality. This study aimed to obtain the mechanized-transplanting trajectory and attitude of rice pot seedlings ...
Jiajia Yang   +3 more
doaj   +1 more source

Helicopter transmission arrangements with split-torque gear trains [PDF]

open access: yes, 1983
As an alternative to component development, the case for improved drive-train configuration is argued. In particular, the use of torque-splitting gear trains is proposed as a practicable means of improving the effectiveness of helicopter main ...
White, G.
core   +1 more source

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