Sampling Intervals.

Abstract

Spectrometric analysis of used oil samples drawn from aircraft engine components is an integral part of the aircraft maintenance program in the United States Air Force. The samples are drawn at prescribed to monitor the levels of occurrence (in PPM) of certain wear metal contaminants. The observed contaminant levels as well as their rates of growth with time are used to assess the wear condition of an engine and to predict certain types of component failures before they can become critical. The interval between successive samples is called the sampling interval. The status of sampling intervals between oil analysis has been reviewed and a framework for an alternative approach to the determination of sampling intervals is discussed. Keywords: Statistical analysis.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1987
Accession Number
ADA189445

Entities

People

  • H. J. Larson
  • Toke Jayachandran

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Aircraft Engines
  • Aircraft Maintenance
  • Aircrafts
  • Computations
  • Elements
  • Engine Components
  • Engines
  • Environmental Pollutants
  • Failure Mode And Effect Analysis
  • Intervals
  • Mathematics
  • Sampling
  • Statistical Algorithms
  • Statistical Analysis
  • United States

Readers

  • Petroleum Engineering
  • Regression Analysis.