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- W798481581 abstract "본 논문에서는 유연우주비행체의 강인 선회기동을 위한 슬라이딩 모드 제어기법에 대해 연구하였다. 본 연구에서는 유연우주비행체의 1축 선회기동을 위한 선회목표각, 목표각속도 및 중앙동체와 유연부착물 사이에 작용하는 내부 반력 모멘트를 포함하는 슬라이딩 평면을 설계하였다. Lyapunov 제어기법과 비교한 결과 두 제어기법 모두 공칭 시스템에 대한 명령 추종성을 확인하였으며, 특히 슬라이딩 모드 제어기법의 적용결과 시스템 파라메터의 변동 및 외란의 영향에도 좋은 제어결과를 얻을 수 있음을 확인하였다. 1축 선회제어 결과를 확장하여 임의의 3축 선회기동을 수행할 수 있는 슬라이딩 모드 제어기를 설계하였다. 3축 선회기동 제어를 위해 쿼터니언을 이용하여 비행체의 자세를 결정하였고, 3개의 축 각각에 대해 설계된 슬라이딩 평면으로부터 선회기동시 발생하는 각 축간의 커플링 효과를 고려하여 제어기를 설계하였다. 설계된 제어기는 효과적인 3축 선회기동을 수행할 수 있음을 수치 시뮬레이션을 통해 보여주고 있다. This paper presents a robust slewing control of a flexible space structure based on sliding surface design. A sliding surface is designed for a single-axis rest-to-rest slewing in view of target angle, target angular velocity, and root monent of the flexible appendage. In comparison with the Lypunov control law, both controllers guarantee the stability and command tracking capabilities for nominal system. It is also shown that the designed control law provides further robustness to internal/external uncertainties. Extending the results of a single-axis maneuver, a sliding mode control law was sought for an arbitrary three-axis maneuver. Quaternion was used to determine the attitude of a space structure and sliding surfaces were designed for each axis, thereby a robust control law was derived considering the coupling effects between each rotational axis during the maneuver. Several numerical examples were demonstrated to show the effectiveness of the designed control law." @default.
- W798481581 created "2016-06-24" @default.
- W798481581 date "2003-04-30" @default.
- W798481581 modified "2023-10-14" @default.
- W798481581 title "Robust Slewing Control of A Flexible Space Structure using Sliding Surface" @default.
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- W798481581 doi "https://doi.org/10.5139/jksas.2003.31.2.063" @default.
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