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Flight Dynamics Principles, 2nd Edition
book

Flight Dynamics Principles, 2nd Edition

by Michael V. Cook
February 2011
Beginner to intermediate content levelBeginner to intermediate
488 pages
17h 21m
English
Butterworth-Heinemann
Content preview from Flight Dynamics Principles, 2nd Edition
Ch11-H6927.tex 20/6/2007 16: 37 Page 283
Stability Augmentation 283
In this case the transfer function of the augmented aircraft, equation (11.4), may be
written
r(s)
δ(s)
= C(s)
KN(s)(1 +sT
1
)
Δ(s)(1 +sT
2
) + KN(s)(1 +sT
1
)
(11.11)
Comparing the closed loop transfer functions, equations (11.9) and (11.11), it is
clear that the stability of the augmented aircraft is unchanged since the denominators
are the same. However, the numerators are different implying a difference in the
response to control and this difference can be exploited to some advantage in some
FCS applications.
Now if the gains in the control system transfer functions F(s) and H (s) are
deliberately ...
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Publisher Resources

ISBN: 9780750669276