Results 131 to 140 of about 62,246 (314)
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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Study on the Dynamic Characteristic of Planetary Gear Transmission System with Tooth-breaking
Jixie chuandong, 2018 In order to explore the dynamic characteristics of planetary gear transmission system after a failure,combining with the Hertz contact theory and gears excitation,the planetary gear transmission system model in consideration of the contact ...
Yang Rui +3 more
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Rotorcraft transmissions [PDF]
Highlighted here is that portion of the Lewis Research Center's helicopter propulsion systems program that deals with drive train technology and the related mechanical components.
Coy, John J.
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Jixie chuandong, 2007 To improve load ability of NGW planetary gear transmission,the 2D optimal design of tooth profile shift coefficient for the transmission is carried out.The optimal result indicates that the appropriate choice of shift copfficient can improve load ability
张涛
doaj
Development of a full-scale transmission testing procedure to evaluate advanced lubricants [PDF]
Experimental tests were performed on the OH-58A helicopter main rotor transmission in the NASA Lewis 500-hp Helicopter Transmission Test Stand. The testing was part of a joint Navy/NASA/Army lubrication program.
Decker, Harry J. +2 more
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Power Flow and Efficiency Analysis of Compound Planetary Gears Transmission with Bevel Gears [PDF]
, 2015 Qingchun Hu
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An analytical method to predict efficiency of aircraft gearboxes [PDF]
A spur gear efficiency prediction method previously developed by the authors was extended to include power loss of planetary gearsets. A friction coefficient model was developed for MIL-L-7808 oil based on disc machine data. This combined with the recent
Anderson, N. E. +2 more
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Split torque transmission load sharing [PDF]
Split torque transmissions are attractive alternatives to conventional planetary designs for helicopter transmissions. The split torque designs can offer lighter weight and fewer parts but have not been used extensively for lack of experience, especially
Kish, J. G., Krantz, T. L., Rashidi, M.
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