Accession Number:

ADA169019

Title:

A Prototype Maintenance Expert System for the CH-47 Flight Control Hydraulic System.

Descriptive Note:

Technical rept.,

Corporate Author:

PRINCETON UNIV NJ DEPT OF MECHANICAL AND AEROSPACE ENGINEERING

Personal Author(s):

Report Date:

1986-04-28

Pagination or Media Count:

182.0

Abstract:

An investigation of the hydraulic flight control system of a Boeing CH-47 Chinook helicopter using artificial intelligence techniques will be undertaken. Specifically, a knowledge based expert system will employ situation-action rules production rules to diagnose a failure and subsequently identify specific devices which caused that failure. Moreover, because the behavior of the system is directly responsive to the goals the system is directly attempting to achieve, the expert systems inference engine performs a backward-chaining process via a goal-driven control strategy. This strategy involves finding rules that demonstrate the hypothesis and then verifying the facts that enable the rule to work. The List Processing Language LIPS is used to facilitate data processing and symbolic logic expression manipulation. Keyword Diagnostics.

Subject Categories:

  • Helicopters
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE