Results of NASA/Army Transmission Research

Abstract

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, this paper outlines that portion of the program that applies to the drive train and its various mechanical components. The major goals of the program were (and continue to be) to increase the life, reliability, and maintainability, reduce the weight, noise, and vibration, and maintain the relatively high mechanical efficiency of the gear train. Major historical milestones are reviewed, significant advances in technology for bearings, gears, and transmissions are discussed, and the outlook for the future is presented.

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Document Details

Document Type
Technical Report
Publication Date
Mar 19, 1987
Accession Number
ADA235017

Entities

People

  • Dennis P. Townsend
  • Harold H. Coe
  • John J. Coy

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Army Aviation
  • Bearings
  • Computer Programs
  • Dynamic Loads
  • Failure Mode And Effect Analysis
  • Fatigue Life
  • Friction
  • Gear Teeth
  • Helicopters
  • Lubricants
  • Lubrication
  • Materials
  • Mechanical Components
  • Propulsion Systems
  • Reliability
  • Test And Evaluation
  • Turbines

Readers

  • Military Science and Technology Research and Modernization.
  • Systems Analysis and Design
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).