Preliminary Investigation of the Thermal Behavior of High-Speed Helical Gear Trains

Abstract

A preliminary experimental investigation of the thermal behavior of high-speed helical gears will be presented. A full-scale torque regenerative test stand has been built to test a representative helical gear train as that used in tiltrotor aircraft. Power loss and temperature data from a wide range of operating conditions were measured. Loop power ranged up to 3730 kW (5000 hp). Drive system components representative of flight quality hardware were used in the test program. The results attained in this initial study indicated that windage losses due to the high rotational speeds that were tested were far more important than the losses due to the gear meshing losses.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2002
Accession Number
ADA401466

Entities

People

  • Charles J. Kilmain
  • Robert F. Handschuh

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Bearings
  • Data Acquisition
  • Databases
  • Failure Mode And Effect Analysis
  • Helicopters
  • Lubricants
  • Lubrication
  • Measurement
  • Military Research
  • Rotary Wing Aircraft
  • Space Sciences
  • Test Facilities
  • Test Stands
  • Tilt Rotor Aircraft
  • Tilt Wing Aircraft
  • Turbines

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).