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- 저자 : 채규훈(GYU-HOON CHAE) (검색결과 4 건)
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채규훈(GYU-HOON CHAE),김영복(YUONG-BOK KIM) 한국해양공학회 2003 韓國海洋工學會誌 Vol.17 No.2
In this paper, an actively controlled anti-rolling system is considered, in order to reduce the rolling motion of a ship. In this control system, a small auxiliary mass is installed on the upper area of the ship, and an actuator is connected between the auxiliary mass and the ship. The actuator reacts against the auxiliary mass, applying inertial control forces to the ship to reduce the rolling motion in the desired manner. In this paper, we introduce LMI based H∞ control approach to design the anti-rolling control system for the controlled ship. And the experimental results show that the desirable control performance can be achieved.
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선박안정성 향상을 위한 횡동요 방지 장치 개발에 관한 연구
김영복,이권순,김준효,채규훈,Kim, Young-Bok,Lee, Kwon-Soon,Kim, Jun-Hyo,Chae, Gyu-Hoon 해양환경안전학회 2005 해양환경안전학회지 Vol.11 No.1
선박 횡동요는 물적 손실을 초래할 뿐만 아니라, 승선자의 거주성, 안전성 및 작업능률을 저하시키는 가장 큰 요인이 된다. 횡동요억제를 위한 많은 연구는 다양한 형태의 장치개발이라는 결과를 가져왔으며 상당한 효과를 얻고 있다. 지금까지 개발 된 대부분의 장치는 그 성능을 고려하지 야더라도 특수한 목적의 선박을 대상으로 설치$\cdot$운영되고 있으며, 고가이고 복잡하여 설치 상에도 많은 문제점을 안고 있다. 따라서 본 논문에서는 선박의 선미측에 설치한 플랩을 이용하여 운항중인 선박의 횡동요 억제에 관해 고찰하고 있다. 본 장치는 중$\cdot$소형의 선박에도 쉽게 설치하여 운용이 용이할 뿐만 아니라, 적절한 제어시스템 구축으로 피칭운동도 제어할 수 있는 장점이 있다. 본 논문에서는 이러한 장치를 설치한 선박에 대해 실험적 기법을 이용하여 모델링을 행하고 시뮬레이션을 통해 장치의 횡동요 억제효과를 검증하고 있다. We have investigated the usefulness cf active stabilizing system to reduce ship rolling under disturbances, using varying reaction cf the flaps. In the proposed anti-rolling system for a ship, the flaps as the actuator are installed on the stem to reject rolling motion induced by disturbances like wave. The action induced by flaps which depends on power of disturbances am take the ship balance. Especially, in this study we identify the controlled system under the undefined system structure using spectral analysis and experimental studies. Based on these informations, we design the controller to evaluate the usefulness of the proposed system.
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선미측에 플랩을 갖는 선박의 동특성 규명과 횡동요 제어계 성계
김영복(YOUNG-BOK KIM),강귀봉(GI-BONG KANG),채규훈(GYU-HOON CHAE) 한국해양공학회 2004 韓國海洋工學會誌 Vol.18 No.2
We have investigated the usefulness of an active stabilizing system to reduce ship rolling under disturbances, using varying reaction of the flaps. In the proposed anti-rolling system for a ship, the flaps, as the actuator, are installed on the stern, in order to reject the rolling motion induced by disturbances, such as waves. The action induced by the flaps, which is dependent upon the power of the disturbances, can keep the ship in balance. In this study, we define the system parameters under the given system structure, using spectral analysis and experimental studies. Based on this information, we design the controller to evaluate the usefulness of the proposed system.
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동시최적화 설계기법을 이용한 항만용 크레인의 흔들림 제어계 설계
김영복(YOUNG-BOK KIM),문덕홍(DUK-HONG MOON),양주호(JOO-HO YANG),채규훈(GYU-HOON CHAE) 한국해양공학회 2005 韓國海洋工學會誌 Vol.19 No.3
The sway motion control problem of a container hanging on the trolley is considered in this paper. In the container crane control problem, the main issue involves suppressing the residual swing motion of the container at the end of acceleration, during deceleration, or for an unexpected disturbance input. For this problem, in general, many trolley motion control strategies are introduced and applied. In this paper, we introduce and synthesize a swing motion control system, in which a small auxiliary mass is installed on the spreader. In this control system, the actuator reacting against the auxiliary mass applies inertial control forces to the container to reduce the swing motion in the desired manner. In many studies, the controllers used to suppress the vibration have been synthesized for the given mathematical model of plants. In many cases, the designers have not been able to utilize the degree of freedom to adjust the structural parameters for the control object. To overcome this problem, so called "Structure/Control Simultaneous Method" is used. From this, in this paper the simultaneous design method is used to achieve optimal system performance. And the experimental result shows that the proposed control strategy is useful, to the case of that the controlled system is exposed to the uncertainties and, robust to disturbances like wind.
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