Results 71 to 80 of about 11,305 (192)

Application of Face-Gear Drives in Helicopter Transmissions [PDF]

open access: yes
The use of face gears in helicopter transmissions was explored. A light-weight, split torque transmission design utilizing face gears was described. Face-gear design and geometry were investigated.
Bossler, R. B., Jr.   +5 more
core   +1 more source

Review of the transmissions of the Soviet helicopters [PDF]

open access: yes
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.
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

Design and finite element mode analysis of noncircular gear [PDF]

open access: yes, 2008
The noncircular gear transmission is an important branch of the gear transmission, it is characterized by its compact structure, good dynamic equilibration and other advantages, and can be used in the automobile, engineering machine, ship, machine tool ...
Cheng, K   +5 more
core  

Computational gearing mechanics [PDF]

open access: yes
This is an expository report summarizing the research efforts and results under NASA Grant NSG-3188 to the University of Cincinnati. Since the grant has now ended this report also serves as a final report for the grant. The focus of the research has been
Huston, Ronald L.
core   +1 more source

Recent manufacturing advances for spiral bevel gears [PDF]

open access: yes
The U.S. Army Aviation Systems Command (AVSCOM), through the Propulsion Directorate at NASA LRC, has recently sponsored projects to advance the manufacturing process for spiral bevel gears.
Bill, Robert C., Handschuh, Robert F.
core   +1 more source

Maximum life spiral bevel reduction design [PDF]

open access: yes
Optimization is applied to the design of a spiral bevel gear reduction for maximum life at a given size. A modified feasible directions search algorithm permits a wide variety of inequality constraints and exact design requirements to be met with low ...
Coe, H. H., Prasanna, M. G., Savage, M.
core   +1 more source

The design and analysis of single flank transmission error tester for loaded gears [PDF]

open access: yes
To strengthen the understanding of gear transmission error and to verify mathematical models which predict them, a test stand that will measure the transmission error of gear pairs under design loads has been investigated.
Bassett, Duane E., Houser, Donald R.
core   +1 more source

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