Experimental Evaluation of Face Gears for Aerospace Drive System Applications.

Abstract

The experimental evaluation of face gears has been ongoing at NASA Lewis since 1991. Testing to date has focused on the feasibility of using this gear mesh to transfer power between intersecting shafts as found in helicopter main rotor transmissions. The focus of the experiments has been to deternaine the failure modes and load capacity of this gear mesh operated in a simulated helicopter transmission environment. At this time tests have been completed on a total of ten sets of face gears using a test facility located at NASA Lewis. Surface pitting was the predominant failure mode generated, however bending failures were also experienced. All tooth fractures due to pitting or bending occurred on the gear member. The spur gear pinion typically only had minor wear. Results from these tests indicated that the components would have to use aerospace gear materials and advanced manufacturing procedures to achieve the desired long component life.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1996
Accession Number
ADA314592

Entities

People

  • David G. Lewicki
  • Gregory F. Heath
  • Robert B. Bossier Jr
  • Robert E. Handschuh

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • California
  • Electron Microscopes
  • Environment
  • Failure Mode And Effect Analysis
  • Gears
  • Geometry
  • Heat Treatment
  • Helicopters
  • Lubricants
  • Military Research
  • Rotary Wing Aircraft
  • Spiral Bevel Gears
  • Test And Evaluation
  • Test Facilities
  • Test Methods
  • Vehicles

Readers

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

Technology Areas

  • Space