NDLI: Comparative study of different methods used to stabilize lateral-directional dynamics of a typical reusable launch vehicle

Content Provider	IEEE Xplore Digital Library
Author	Jee, G. Brinda, V. Lalithambika, V.R. Dhekane, M.V.
Copyright Year	2013
Description	Author affiliation: Guidance & Simulation Entity of Vikram Sarabhai Space Centre, Thiruvananthapuram, India (Jee, G.; Brinda, V.; Lalithambika, V.R.; Dhekane, M.V.)
Abstract	Initial entry phase of all the winged body vehicles, encounter ballistic flight in the absence of aerodynamic forces in rare atmosphere at high re-entry altitude. Lifting vehicles enter the atmosphere at high angle of attack to increase the drag to reduce the orbital velocity and to increase the lift to balance the weight for equilibrium glide flight. Ineffectiveness of rudder makes the control law design very challenging due to shadow effect of fuselage at high angle of attack. Problem gets further magnified due to increase in dynamic pressure with the reduction in altitude and increase in density. This paper presents a comparative study of three methods to stabilize the highly coupled lateral-directional dynamics of a typical reusable launch vehicle at the time of re-entry. This study clearly brings out the point that just placing the eigenvalues and eigenvectors at the desired locations is not sufficient to ensure good robustness of a closed-loop system. It is seen that the intuitive physics based design methodologies result in simpler and better control solutions.
Starting Page	710
Ending Page	715
File Size	588725
Page Count	6
File Format	PDF
ISBN	9781479915590
ISSN	10851992
DOI	10.1109/CCA.2013.6662833
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-28
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Aerodynamics Vehicle dynamics Vehicles Eigenvalues and eigenfunctions Damping Output feedback Polynomials
Content Type	Text
Resource Type	Article

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