Approximate Evaluation of Reliability and Availability via Perturbation Analysis.

Abstract

Progress is described on a project whose goal is the development of practical tools for evaluating the reliability and availability of fault-tolerant control or sensor systems. The approach relies on the generation of a Markovian model for the behavior of the system. The project entails the investigation of approximate techniques for deriving results from these models. The basic idea is that the time-behavior of the model decomposes into two time scales where the results of interest occur in time frames intermediate to the two time scales. By modifying previous theory, an approximate evaluation scheme is developed and shown to be valid when the model possesses a decomposability property such that the decomposed classes obey a relatively weak sufficient condition. Examples are discussed. Also, means for generating the exact answers to which the results of the approximation will be compared are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1986
Accession Number
ADA182358

Entities

People

  • Bruce K. Walker
  • Norman M. Wereley
  • Siu-kwong Chu

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Biomedical
  • C4I
  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Air Traffic Control Systems
  • Algorithms
  • Computational Science
  • Computations
  • Computer Programs
  • Computers
  • Control Systems
  • False Alarms
  • Flight Control Systems
  • Markov Models
  • Probabilistic Models
  • Probability Distributions
  • Random Variables
  • Reliability
  • Statistics
  • Test And Evaluation

Readers

  • Computational Modeling and Simulation
  • Mathematical Modeling and Probability Theory.