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Cranfield University: No Fault Found Resistant Control System

Institution Cranfield University View institution profile
Department Cranfield University
Telephone 01234 758540
Study type Research


Industrial applications such as aviation systems widely suffer from a particular type of fault known as No-Fault-Fault (NFF). Term NFF points to the fact that real failure remains hidden during the general troubleshooting due to its random nature. Hence, the potential failure cannot be fixed by evaluating technicians; and of course, it profoundly adds to the maintenance costs.

Cause of NFF is attributed to various issues including oxidation, mechanical stresses (vibration) electromagnetic fields, poor design and bad/wrong operation. They cause various intermittency issues in; for instance, chassis, PCBs, connectors, cables and wires as the system gradually ages. The intermittent fault is a malfunction of a device or system that occurs at intervals (presenting irregularity) in a device or system that functions normally at other times. In many industrial applications such as in-line replaceable unit (LRU) of aviation systems, intermittent faults found in the power chain of a system can be cascaded into other electronic circuitry, processors, microcontrollers, and memories causing random intermittent failures.

Doctor of Philosophy - PhD

Cranfield University

Cranfield is a specialist postgraduate university that is a global leader for education and transformational research in technology and management.

We are focused on the specialist themes of aerospace, defence and security, energy and power, environment and agrifood, manufacturing, transport systems, and water. Cranfield School of Management is a world leader in management education and research.

We have many world-class, large-scale facilities, including our own global research airport, which offers a unique environment for transformational education and research, living laboratory for testing transformative technologies and new approaches to deliver enhanced social, economic and environmental outcomes. …

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