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 in terms of failures and Redundancy Management decisions. 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 for a number of example cases. Ongoing work is also described. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA168561

Entities

People

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

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Human Systems
  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Computers
  • Control Systems
  • Damage Detection
  • Detectors
  • False Alarms
  • Information Processing
  • Mainframe Computers
  • Markov Models
  • Markov Processes
  • Probability
  • Probability Distributions
  • Random Variables
  • Redundancy
  • Reliability
  • Steady State
  • Test And Evaluation

Fields of Study

  • Computer science

Readers

  • Calculus or Mathematical Analysis
  • Mathematical Modeling and Probability Theory.
  • Software Engineering