An Enhancement to the NA4 Gear Vibration Diagnostic Parameter.

Abstract

A new vibration diagnostic parameter for health monitoring of gears, NA4, is proposed and tested. A recently developed gear vibration diagnostic parameter NA4 outperformed other fault detection methods at indicating the start and initial progression of damage. However, in some cases, as the damage progressed, the sensitivity of the NA4 and FM4 parameters tended to decrease and no longer indicated damage. A new parameter, NA4 was developed by enhancing NA4 to improve the trending of the parameter. This allows for the indication of damage both at initiation and also as the damage progresses. The NA4 parameter was verified and compared to the NA4 and FM4 parameters using experimental data from single mesh spur and spiral bevel gear fatigue rigs. The primary failure mode for the test cases was naturally occurring tooth surface pitting. The NA4 parameter is shown to be a more robust indicator of damage. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1994
Accession Number
ADA290373

Entities

People

  • Harry J. Deckeer
  • James J. Zakrajsek
  • Robert F. Handschuh

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Biomedical
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Coefficients
  • Data Science
  • Digital Data
  • Experimental Data
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Gears
  • Information Science
  • Military Research
  • Monitoring
  • Personal Computers
  • Research Facilities
  • Spiral Bevel Gears
  • Standards
  • Statistics
  • Vehicles

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Information Retrieval
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).