Transmission Acoustic Vibration Testing.

Abstract

Laboratory tests were conducted to determine the individual and combined effects of a high contact ratio (HCR) planetary gearset and a stainless steel housing on the acoustic (high frequency) vibration signature of the BLACK HAWK helicopter main transmission. Vibration levels at the planetary mesh frequency increased significantly with the stainless steel housing, but increased unexpectedly with the HCR planetary. The primary reason for the increased response with the HCR was the reduced gear face widths. Keywords: UH-60A aircraft; Planetary gears; Gear teeth; Helicopter transmissions; High contact ratio gears; Buttress Tooth gears; Gear mesh frequency; Acoustic vibration.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1985
Accession Number
ADA159022

Entities

People

  • A. Chory
  • C. Yoerkie

Organizations

  • United Technologies Corporation

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aircraft Equipment
  • Aircrafts
  • Airframes
  • Frequency Bands
  • Gears
  • Instrumentation
  • Manufacturing
  • Materials
  • Measurement
  • Planetary Gears
  • Production
  • Roller Bearings
  • Sound Pressure
  • Standards
  • Tail Rotors
  • Test And Evaluation
  • Test Facilities

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).