Virtual Free-Volume Revised Method and Adaptive Control for Solid Ducted Rockets
Publication: Journal of Aerospace Engineering
Volume 34, Issue 5
Abstract
The response difference between the classical mathematical model of a ducted rocket and a real experiment is compared in this study, and a new revised method is proposed based on the free volume. A virtual free volume that is related to the real free volume is built to eliminate the discrepancy between the model and experiment, and a possible explanation of virtual free volume is carried out. In addition, design constraints and variation characteristics of the ducted rocket control system are analyzed. Furthermore, a radial basis function (RBF) adaptive control method is proposed to deal with the variation. Finally, hardware in a loop simulation device for the ducted rocket control system is presented, and its reliability is proved by analysis and comparison with a direct-connected ground test, and a serial simulation test that consistent with the numerical simulation is carried out to verify the validation of the controller.
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Data Availability Statement
The data used to support the findings of this study are available from the corresponding author upon request.
Acknowledgments
The present work was supported by the National Natural Science Foundation of China (Grant No. 61174120).
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Published In
Journal of Aerospace Engineering
Volume 34 • Issue 5 • September 2021
Copyright
© 2021 American Society of Civil Engineers.
History
Received: Apr 22, 2020
Accepted: Nov 25, 2020
Published online: Jun 2, 2021
Published in print: Sep 1, 2021
Discussion open until: Nov 2, 2021
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