THEORY FOR FAULT-TOLERANT FLIGHT CONTROL COMBINING EXPERT SYSTEM AND ANALYTICAL REDUNDANCY CONCEPTS.

David A. Handelman, Robert Frank Stengel

Research output: Contribution to journalConference articlepeer-review

3 Scopus citations

Abstract

This paper presents a theory for rule-based fault-tolerant flight control. The objective is to define methods for designing control systems capable of accommodating a wide range of aircraft failures, including sensor, control, and structural failures. A software architecture is described that integrates quantitative analytical redundancy techniques and heuristic expert system concepts for the purpose of in-flight, real-time fault tolerance. The resultant controller uses a rule-based expert system approach to transform the problem of failure accommodation task scheduling and selection into a problem of search. Control system performance under sensor and control failures is demonstrated using linear discrete-time deterministic simulations of a tandem-rotor helicopter's dynamics. It is found that the rule-based control theory can be used to enhance existing redundancy management systems.

Original languageEnglish (US)
Pages (from-to)375-384
Number of pages10
JournalAIAA Paper
StatePublished - Dec 1 1986

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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