AN EXPERT SYSTEM APPROACH TO GLOBAL FAULT DETECTION AND ISOLATION DESIGN

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$50,000.00
Award Year:
1989
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
9539
Agency Tracking Number:
9539
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
55 Wheeler St, Cambridge, MA, 02138
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Alper K Caglayan
(617) 491-3474
Business Contact:
() -
Research Institute:
n/a
Abstract
RECONFIGURABLE FLIGHT CONTROL SYSTEMS COMPENSATE FOR THE EFFECTS OF ONBOARD HARDWARE FAILURE AND SURFACE DAMAGE CONDITIONS USING INFORMATION SUPPLIED BY A GLOBAL FAULT DETECTION AND ISOLATION SYSTEM. A GLOBAL FDI ALGORITHM PERFORMS ITS FUNCTION BY ASSESSING THE GLOBAL EFFECTS OF A HARDWARE FAULT AND SURFACE DAMAGE ON THE CLOSED-LOOP AIRCRAFT DYNAMICS. SINCE CHANGES IN THE FLIGHT CONTROL LAW AFFECT THE SIGNATURE OF A HARDWARE FAULT AND SURFACE DAMAGE, THE DESIGN OF A GLOBAL FDI ALGORITHM IS DEPENDENT ON THE FLIGHT CONTROL LAW PERFORMANCE CHARACTERISTICS. HENCE, IT IS DESIRABLE TO AUTOMATE THE GLOBAL FDI DESIGN PROCESS IN ORDER TO REDUCE THE DEVELOPMENT TIME, COST AND RISK FOR ADVANCED FLIGHT CONTROL SYSTEMS. HERE, WE PROPOSE THE DEVELOPMENT AND PROTOTYPE DEMONSTRATION OF A GLOBAL FDI DESIGN ASSISTANT BASED ON EXPERT SYSTEMS TECHNOLOGY. SUCH A SYSTEM WOULD INCORPORATE AN EXTENSIVE DATA BASE OF FAILURE DETECTION AND ISOLATION DETAILS AND PROCEDURES, ENCAPSULATE AERODYNAMIC MODELLING AND FLIGHT CONTROL SYSTEM KNOWLEDGE, AND BE CAPABLE OF SUGGESTING DESIGN REITERATION PROCEDURES TO THE USER. A SECONDARY OBJECTIVE OF OUR PROPOSED STUDY IS TO INVESTIGATE HOW EXPERT SYSTEMS CAN BE INTEGRATED INTO THE IMPLEMENTATION OF FDI ALGORITHMS.

* information listed above is at the time of submission.

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