Fault Assessment of a Diesel Engine Using Vibration Measurements and Advanced Signal Processing.

Abstract

A Diesel Engine test cell was developed, which consisted of a Detroit Diesel 3-53 engine, a water brake dynamometer and an engine cycle analyzer. Extensive steady state and time resolved instrumentation were installed along with a highspeed data acquisition system to obtain cylinder pressure and engine vibration data. High frequency response accelerometers were mounted on the cylinder head assembly to measure phase resolved response relative to top dead center (TDC) on the first cylinder. Baseline vibration data were taken over a range of engine load and speed combinations. An engine fault was introduced by adjusting the timing on the first cylinder injector. The vibration signatures of the baseline engine and the induced fault engine were characterized using Joint Time Frequency Analysis. The fault condition was detected and localized.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
ADA325964

Entities

People

  • Robert A. Armstrong

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acquisition
  • Combustion Chambers
  • Data Acquisition
  • Diesel Engines
  • Engines
  • Frequency
  • Frequency Bands
  • Fuel Injection
  • Fuel Injectors
  • Internal Combustion Engines
  • Measurement
  • Mechanical Engineering
  • Pressure Transducers
  • Pumps
  • Test And Evaluation
  • Turbines
  • Vibration

Readers

  • Control Systems Engineering.
  • Internal Combustion Engine (ICE) Technology.
  • Radar Systems Engineering.