Discover Transmissions (Machine Elements)

Bell Helicopter Advanced Rotorcraft Transmission (ART) program

Design, manufacture, and spin test of high contact ratio helicopter transmission utilizing self-aligning bearingless planetary (SABP)

Improving the performance of the structure-based connectionist network for diagnosis of helicopter gearboxes

System life and reliability modeling for helicopter transmissions

Experimental and analytical assessment of the thermal behavior of spiral bevel gears

A preliminary study on the vapor/mist phase lubrication of a spur gearbox

Computerized design of low-noise face milled spiral bevel gears

Determination of real machine-tool settings and minimization of real surface deviation by computerized inspection

Influence of tooth profile modification on spur gear dynamic tooth strain

Evaluation of navy 9 cst oil in Bell helicopter M412 HP gearboxes

Non-linear dynamic analysis of geared systems

Advanced Rotorcraft Transmission (ART) Program

Testing of YUH-61A helicopter transmission in NASA Lewis 2240-kW (3000-hp) facility

Dynamic analysis of spur gear transmissions (DANST)

Comparison of predicted and measured temperatures of UH-60A helicopter transmission

Diagnosis of helicopter gearboxes using structure-based networks

Experimental study of split-path transmission load sharing

Computerized design and generation of gear drives with a localized bearing contact and a low level of transmission errors

Efficiency study comparing two helicopter planetary reduction stages

A review of transmission diagnostics research at NASA Lewis Research Center

Gear and transmission research at NASA Lewis Research Center

Study of the kinematic and load sharing properties of wormgearing with non-symmetric tooth profiles

Advanced Rotorcraft Transmission Program

Effects of planetary gear ratio on mean service life