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Author Prathap, H. ♦ Brinda, V. ♦ Ushakumari, S.
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Other branches of engineering
Subject Keyword Aerodynamics ♦ Mathematical model ♦ Vehicle dynamics ♦ Robustness ♦ Nonlinear dynamical systems ♦ Aerospace control ♦ Equations
Abstract Due to the inherent nonlinearities of Reusable Launch Vehicle (RLV) dynamics, its changing properties during flight and the engineering difficulties to predict its aerodynamics with high levels of fidelity, flight control requires strategies that allow to cope up with the non-linearity of the model and assure robustness in the presence of inaccuracies and changes in configuration. This paper presents a flight control strategy based on dynamic inversion controller which is designed for the re-entry phase of Reusable Launch Vehicle. In order to solve the robustness problem of regular explicit Nonlinear Dynamic Inversion (NDI) control law, the Incremental Nonlinear Dynamic Inversion (INDI) control law is proposed. Sensitivity to model mismatch is eliminated by feeding back state acceleration in INDI approach. The improved control law design is validated for re-entry phase of RLV for nominal and aerodynamic perturbation cases. Analysis of simulation results reveal that the robustness of the control law is increased.
Description Author affiliation: Dept. of Electr. & Electron. Eng., Coll. of Eng. Trivandrum, Trivandrum, India (Ushakumari, S.) || Control Design Div., VSSC, India (Brinda, V.) || Coll. of Eng., Trivandrum, India (Prathap, H.)
ISBN 9781479915590
ISSN 10851992
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-08-28
Publisher Place India
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 248.93 kB
Page Count 6
Starting Page 716
Ending Page 721

Source: IEEE Xplore Digital Library