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Advanced Rotorcraft Transmission (ART) program [PDF]
Work performed by the McDonnell Douglas Helicopter Company and Lucas Western, Inc. within the U.S. Army/NASA Advanced Rotorcraft Transmission (ART) Program is summarized.
Bossler, Robert B., Jr. +1 more
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Helicopter transmission testing at NASA Lewis Research Center [PDF]
The helicopter has evolved into a highly valuable air mobile vehicle for both military and civilian needs. The helicopter transmission requires advanced studies to develop a technology base for future rotorcraft advances.
Coy, John J., Lewicki, David G.
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Jixie chuandongTunnel boring machine (TBM) reducers are important components of TBM's cutter-head drive system. In order to reveal the dynamic characteristics of the two-stage planetary gear transmission system of the TBM reducer, the influence factors such as tooth ...
Xu Younan +3 more
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Jixie chuandong, 2017 Based on the traditional traction planetary ring cone friction continuously variable transmission,the planetary ring bevel gear power split type continuously variable transmission is firstly proposed,and the derivation with two methods of its overall ...
Gu Cunhang +3 more
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Thermal Behavior and Operation Characteristic of the Planetary Gear for Cutting Reducers
Applied SciencesBolter miners have been widely used in coal mining or excavation industries. Its efficiency is closely related to the performance of its cutting reducer, which is literally determined by the thermal behavior of the planetary gear set.
Jiahe Shen +6 more
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Testing of UH-60A helicopter transmission in NASA Lewis 2240-kW (3000-hp) facility [PDF]
The U.S. Army's UH-60A Black Hawk 2240-kW (3000-hp) class, twin-engine helicopter transmission was tested at the NASA Lewis Research Center. The vibration and efficiency test results will be used to enhance the data base for similar-class helicopters ...
Coe, H. H. +2 more
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Jixie chuandong, 2018 Based on the transmission principle of planetary gear train,a method by using the signal flow graph is proposed to calculate the torque of complex planetary gear train.
Zhou Xintao +3 more
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Advanced rotorcraft transmission program [PDF]
The Advanced Rotorcraft Transmission (ART) program is an Army-funded, joint Army/NASA program to develop and demonstrate lightweight, quiet, durable drivetrain systems for next generation rotorcraft.
Bill, Robert C.
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Jixie chuandong, 2019 In order to analyze the influence of bearing preload on the dynamic characteristics of high-speed and heavy-load planetary gear transmission system， a dynamics model of high-speed heavy-load planetary gear transmission is established.
Xiangyang Xu, Song Fu, Xun Han, Xing Ai
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