NASA transmission research and its probable effects on helicopter transmission design [PDF]
Transmissions studied for application to helicopters in addition to the more conventional geared transmissions include hybrid (traction/gear), bearingless planetary, and split torque transmissions. Research is being performed to establish the validity of
Coy, J. J. +2 more
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Helicopters as a Theme in a Machine Design Course [PDF]
, 2014 Helicopters as a Theme in Teaching Machine Design A machine design course is required in most undergraduate mechanical engineering curricula.This course generally covers an introduction to mechanical engineering design, a review of materials engineering,
Nagurka, Mark L., Turner, Devin
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A Market-Based Analysis on the Main Characteristics of Gearboxes Used in Onshore Wind Turbines [PDF]
, 2017 Even though wind energy is one of the most mature renewable technologies, it is in continuous development not only because of the trend towards larger wind turbines but also because of the development of new technological solutions.
Centeno Báez, Gabriel +2 more
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Assessment of worm gearing for helicopter transmissions [PDF]
A high-efficiency hydrostatic worm gear drive for helicopter transmissions is assessed. The example given is for a large cargo helicopter with three 4000-kW engines and transmission reduction ratio of 110. Also contained are: an efficiency calculation, a
Chaiko, Lev
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THE TORQUE METHOD USED FOR STUDYING COUPLED TWO-CARRIER PLANETARY GEAR TRAINS [PDF]
, 2013 Using the torque method, one can determine not only the speed ratios in complex compound planetary gear trains, but also the magnitude and direction of internal power flows and thus the efficiency.
Dimitar Karaivanov, Kiril Arnaudov
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Cable-Driven Actuation for Highly Dynamic Robotic Systems
, 2018 This paper presents design and experimental evaluations of an articulated robotic limb called Capler-Leg. The key element of Capler-Leg is its single-stage cable-pulley transmission combined with a high-gap radius motor.
Hutter, Marco +3 more
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Performance Analysis of Hybrid and Full Electrical Vehicles Equipped with Continuously Variable Transmissions [PDF]
, 2013 The main aim of this paper is to study the potential impacts in hybrid and full electrical vehicles performance by utilising continuously variable transmissions. This is achieved by two stages.
Elkady, M +3 more
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Review of the transmissions of the Soviet helicopters [PDF]
A review of the following aspects of Soviet helicopter transmissions is presented: transmitted power, weight, reduction ratio, RPM, design configuration, comparison of different type of manufacturing methods, and a description of the materials and ...
Chaiko, Lev I.
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An investigation into hybrid power trains for vehicles with regenerative braking [PDF]
, 2007 Imperial Users ...
Diego-Ayala, Ulises, Diego-Ayala, Ulises
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Identification and proposed control of helicopter transmission noise at the source [PDF]
Helicopter cabin interiors require noise treatment which is expensive and adds weight. The gears inside the main power transmission are major sources of cabin noise.
Coy, John J. +6 more
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