Results 141 to 150 of about 12,721 (256)

Advanced Rotorcraft Transmission (ART) program-Boeing helicopters status report [PDF]

open access: yes
The Advanced Rotorcraft Transmission (ART) program is structured to incorporate key emerging material and component technologies into an advanced rotorcraft transmission with the intention of making significant improvements in the state of the art (SOA).
Lenski, Joseph W., Jr., Valco, Mark J.
core   +1 more source

Hybrid propulsion systems for motor vehicles with predominantly intermittent modes of operation [PDF]

open access: yes
A small delivery vehicle was equipped with a flywheel-hybrid drive and compared in test stand and driving tests with a conventional drive vehicle.
Bartsch, H., Helling, J., Schreck, H.
core   +1 more source

Results of NASA/Army transmission research [PDF]

open access: yes
Since 1970 the NASA Lewis Research Center and the U.S. Army Aviation Systems Command have shared an interest in advancing the technology for helicopter propulsion systems. In particular, that portion of the program that applies to the drive train and its
Coe, Harold H.   +2 more
core   +1 more source

Study on the Oil Distribution and Churning Loss in the Rotation of a Planetary Gear Train

open access: yesJixie chuandong
A splash lubrication simulation model of a planetary gear train was established based on the moving particle semi-implicit (MPS) method, and it was verified by experiments to explore the splash lubrication behavior of the planetary transmission.
Chen Huixiao   +7 more
doaj  

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