Vol. 5 (10) pp. 200-218 DOI: 10.21474/IJAR01/5523

STABILITY ANALYSIS OF NONLINEAR CONTROL USING HIERARCHICAL DYNAMIC INVERSION FOR A WINGED ROCKET.

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  • Department Of Mechanical And Control Engineering, Kyushu Institute Of Technology, Japan.
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Abstract

This paper presents stability analysis and time response evaluation of nonlinear control based on the hierarchy Dynamic Inversion (DI) and the block strict-feedback form, assuming the application to a winged rocket vehicle. Such vehicles have a wide range of flight conditions, and the associated change in aerodynamic characteristics during the flight leads to highly nonlinear dynamics. Whereas DI theory can cancel the nonlinear dynamics and linearize the input and output maps, it becomes troublesome to construct the control law when a system has high relative degree between the input and output maps. DI theory combined with time-scale separation, on the other hand, can provide a simple control law at the expense of strict linearization, and it has been one of the effective control methods for nonlinear system. However, there is a difficulty in evaluating the stability of such a control law. In order to solve these problems, the hierarchical DI method in the block strict-feedback form is investigated in this paper. This methodology is advantageous in that the control law is simple and its stability can be analyzed via classical eigenvalue analysis. The developed technique is applied to an experimental winged rocket vehicle whose dynamics consist of hierarchical structures of vehicle dynamics and actuator dynamics, and its validity is demonstrated via numerical simulations.

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How to Cite This Article

Hiroshi Yamasaki, Koichi Yonemoto and Takahiro Fujikawa. (2017); STABILITY ANALYSIS OF NONLINEAR CONTROL USING HIERARCHICAL DYNAMIC INVERSION FOR A WINGED ROCKET., Int. J. of Adv. Res., 5 (10), 200-218, ISSN 2320-5407. DOI: https://doi.org/10.21474/IJAR01/5523

Corresponding Author

Hiroshi Yamasaki
Kyusyu Institute of Technology
Creative Commons Attribution 4.0 This work is licensed under a Creative Commons Attribution 4.0 International License.