Lecture 8: May 19, 2009
Fault Tolerance, Diagnostics, and Prognostics in Aircraft Flight Control Systems
David Bodden, Lockheed Martin
Bio
David S. Bodden is Lockheed Martin Senior Fellow.
He recieved BS in Aerospace Engineering from Texas A&M University in 1976
and MS in Engineering Science and Mechanics from Virginia Tech in 1984.
Mr. Bodden’s technical career has encompassed a broad scope of
technology areas. He has worked in structural dynamics, advanced
design, conceptual design, flight control systems, and prognostics.
His management experience includes six years as Chief of the Control
Law design and Analysis Group followed by seven years as the Senior
Manager of Flight Control Systems. Mr. Bodden was selected as a
Technical Fellow in Flight Controls at LM Aeronautics in 2002 and
as a Senior Fellow in 2007.
Mr. Bodden has authored numerous papers and technical proposals, and
managed numerous technology development programs. He served on the
AIAA Guidance, Navigation, and Control Technical Committee, he has
served as the Chairman of the Lockheed Martin Corporate Task Force
on Guidance and Control, he initiated and served as Chairman of the
Lockheed Martin GNC Technology Focus Group, is former Chairman of the
SAE Aerospace Control and Guidance Systems Committee, and he currently
serves as Chairman of the Texas A&M Aerospace Advisory Board.
Abstract
In modern fighter aircraft with statically unstable airframe
designs, the flight control system is considered flight critical,
i.e. the aircraft will encounter a catastrophic event if the
system fails. Consequently, the system design has to meet high
levels of reliability and failure immunity. In this presentation,
an overview will be provided on the basic concepts employed in
flight critical system design for fault tolerance. Different
methods of redundancy implementation, failure management, and
health management will be discussed. Basic concepts in fault
diagnostics will also be discussed, along with some new concepts
for implementation of prognostics in reducing levels of physical
system redundancy.
Lecture Notes
Lecture 8 Charts in PDF