Model-Based Fault Diagnosis for Turboshaft Engines

Abstract

Tests are described which, when used to augment the existing periodic maintenance and pre-flight checks of T700 engines, can greatly improve the chances of uncovering a problem compared to the current practice. These test signals can be used to expose and differentiate between faults in various components by comparing the responses of particular engine variables to the expected. The responses can be processed on-line in a variety of ways which have been shown to reveal and identify faults. The combination of specific test signals and on-line processing methods provides an ad hoc approach to the isolation of faults which might not otherwise be detected during pre-flight checkout.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1998
Accession Number
ADA357646

Entities

People

  • Ahmet Duyar
  • Jonathan S. Litt
  • Michael D. Green

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Aircrafts
  • Combustion
  • Databases
  • Engineering
  • Engines
  • Fuel Injectors
  • Fuel Systems
  • Generators
  • Helicopter Engines
  • Helicopters
  • Mechanical Engineering
  • Military Research
  • Power Levels
  • Propulsion Systems
  • Turbines
  • Turboshaft Engines
  • Vehicles

Fields of Study

  • Engineering

Readers

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