Failure Detection and Location Method (FDLM).

Abstract

The computerized method developed in this thesis aids the operators of complex dynamic systems to detect failures and to locate the causes in real-time. This method is called Failure Detection and Location Method (FDLM). Failures are detected when the differences between the measured system's power variables and their corresponding calculated model values are outside preset limits. The causes are located by disaggregating the model and utilizing the causal description of the resultant submodels. This method eliminates the necessity to preprogram the system's possible failure modes, but requires an efficient failure location procedure. System, sensor, and control input failures can be identified by FDLM. The display interfacing FDLM to the human operator was designed to minimize the rate of missings and false alarms as well as the operator's reaction time. A simulation test of FDLM applied to a part of a ship's engine demonstrates the advantages of the method. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1982
Accession Number
ADA123783

Entities

People

  • Uri Tsach

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Air Force
  • Bayesian Networks
  • Computational Science
  • Damage Detection
  • Detection
  • Detectors
  • Differential Equations
  • Digital Information
  • Engineering
  • Failure Mode And Effect Analysis
  • False Alarms
  • Human Factors Engineering
  • Human-Machine Systems
  • Information Science
  • Mechanical Engineering
  • Operating Systems
  • Systems Engineering

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Naval Mine Countermeasure Systems Development.
  • Sensor Fusion and Tracking Systems.