Results 21 to 30 of about 4,896 (145)
Hybrid geared traction transmissions [PDF]
, 1983 The basic configuration of geared traction drives, geometric and structural factors to be considered in their construction, and current work on hybrid helicopter transmissions rated at 500 and 3000 hp are ...
Nasvytis, A. L., White, G.
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Selection of the Two–Carrier Shifting Planetary Gear Train Controlled by Clutches and Brakes
Transactions of FAMENA, 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. The reactive shaft is changed by means of breaks whereas the input and output shaft of the gear train are changed by clutches.
Troha, Sanjin +2 more
openaire +4 more sources
Sequencing device utilizing planetary gear set [PDF]
, 1979 A planetary (epicyclic) gear set is provided with a reversible rotating input shaft and individual outputs shafts actuated, respectively, by the ring gear and planet gear carrier.
Appleberry, W. T.
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Aspects of geometric calculation of the planetary gear train with intermediate rollers. Part 1 [PDF]
, 2016 The paper presents the geometric calculation of the planetary gear train with intermediate rollers, where the number of intermediate rollers is greater or less than that of the teeth in the annular gear by one, the profile surface of the annular gear ...
An I-Kan +2 more
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Kinematic operating modes of two-speed two-carrier planetary gear trains with four external shafts
Transactions of FAMENA, 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. Planetary gear trains are divided into three different design groups, and characteristics of trains of each group are given ...
Troha, Sanjin +2 more
openaire +3 more sources
Concentric differential gearing arrangement [PDF]
, 1974 Two input members and two concentric rotatable output members are interconnected by a planetary gear arrangement. The first input drives directly the first output. The second input engages a carrier having the planetary gears affixed thereto. Rotation of
Gerdts, J. C., Zeiger, R. J.
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Dynamics of early planetary gear trains [PDF]
A method to analyze the static and dynamic loads in a planetary gear train was developed. A variable-variable mesh stiffness (VVMS) model was used to simulate the external and internal spur gear mesh behavior, and an equivalent conventional gear train ...
August, R. +3 more
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Vibration in Planetary Gear Systems with Unequal Planet Stiffnesses [PDF]
An algorithm suitable for a minicomputer was developed for finding the natural frequencies and mode shapes of a planetary gear system which has unequal stiffnesses between the Sun/planet and planet/ring gear meshes.
August, R., Frater, J. L., Oswald, F. B.
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A new manual wheelchair propulsion system with self-locking capability on ramps [PDF]
, 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
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Advanced gearbox technology [PDF]
An advanced 13,000 HP, counterrotating (CR) gearbox was designed and successfully tested to provide a technology base for future designs of geared propfan propulsion systems for both commercial and military aircraft.
Anderson, N. E. +3 more
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