DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
NASA/Army Rotorcraft Transmission Research, A Review of Recent Significant Accomplishments.
ARMY RESEARCH LAB CLEVELAND OH
Pagination or Media Count:
A joint helicopter transmission research program between NASA Lewis Research Center and the U.S. Army Research Lab has existed since 1970. Research goals are to reduce weight and noise while increasing life, reliability, and safety. These research goals are achieved by the NASAArmy Mechanical Systems Technology Branch through both in-house research and cooperative research projects with university and industry partners. This paper reviews some recent significant technical accomplishments produced by this cooperative research. The following research projects are reviewed oil-off survivability of tapered roller bearings, design and evaluation of high contact ratio gearing, finite element analysis of spiral bevel gears, computer numerical control grinding of spiral bevel gears, gear dynamics code validation, computer program for life and reliability of helicopter transmissions, planetary gear train efficiency study, and the Advanced Rotorcraft Transmission ART program.
APPROVED FOR PUBLIC RELEASE