대각도 받음각을 갖는 무인잠수정에 작용하는 동유체력 특성에 관한 실험적 연구
An Experimental Study on Characteristics of Hydrodynamic Forces Acting on Unmanned Undersea Vehicle at Large Attack Angles
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초록
회류수조에서의 대각도 정적(static) 모형실험을 통해 Manta형 무인잠수체에 작용하는 동유체력을 측정하였으며, 동유체력에 미치는 Reynolds수의 영향을 고찰하였다. 이를 위해 동유체력을 cross-flow drag과 양력(lift force)으로 성분 분석을 하였으며, 양력 성분에는 Reynolds수의 영향을 무시하고, cross-flow drag 성분에만 Reynolds수의 영향을 고려하였다. 그 후 이들 두 성분을 다시 합성함으로써 실물 무인잠수정에 작용하는 동유체력의 추정 기법을 제시하였다.
Abstract
The authors adopt the Unmanned Undersea Vehicle(UUV), the shape of which is like a manta. They call here it Manta UUV. Manta UUV has been designed from the similar concept of the UUV called Manta Test Vehicle(MTV), which was originally built by the Naval Undersea Warfare Center of USA(Lisiewicz and French, 2000; Simalis et al., 2001; U.S. Navy, 2004). The present study deals with the effect of Reynolds numbers on hydrodynamic forces acting on Manta UUV at large angles of attack. The large angles of attack cover the whole range of 0 to ± 180 degrees in horizontal plane and in vertical plane respectively. Static test at large attack angles has been carried out with two Manta UUV models in circulating water channel. The authors assume that the experimental results of hydrodynamic forces (lateral force, yaw moment, vertical force and pitch moment) are analyzed into two components, which are lift force component and cross-flow drag component. First of all, Based on two dimensional cross-flow drag coefficient at 90 degrees of attack angle, the cross-flow drag component at whole range of attack angles is calculated. Then the remainder is assumed to be the lift force component. The only cross-flow drag component is assumed to be subject to Reynolds number.entstly the authors suggest the methodology to predict hydrodynamic derivertives acting on the full-scale Manta UUV.
참고문헌 (15)
- 손경호, "Manta형 무인잠수정의 조종운동 특성에 관한 연구", 대한조선학회 논문집, 46(2), pp.114~126 (2009), 대한조선학회
- 손경호, "Manta형 무인잠수정의 대각도 받음각을 갖는 조종운동 수학모델에 관한 연구", 대한조선학회 논문집, 47(3), pp.328~341 (2010), 대한조선학회
- Choi,J.R, "Analysis on Development Trend and Core Technology of Unmanned Underwater Vehicle", Defense Science & Technology Plus, 65 (2008), Agency for Defense Development.
- Principles of Naval Architecture, lll, 2nd Revision, "Lewis,E.V", the Society of Naval Architects and Marine Engineers, ~ (1989)
- Lisiewicz, J. S, "Manta Test Vehicle At-Sea Test Results and Technology Demonstration Plans", Proceedings, Undersea Defense Technology Conference, Europe (2000)
- Newman,J.N, "Marine hydrodynamics", pp.217~ (1978), Mit press
- 신용구, "수중함의 함미타 효율추정을 위한 수학모델링에 관한 연구", 대한조선학회 논문집, 42(3), pp.190~196 (2005), 대한조선학회
- Sirmalis,J.E., "Pursuing the MANTA Vision : Recent At-Sea Technology Demonstration Results" (2001), Proceedings, Undersea Defense Technology Conference, Hawaii
- Son,N.S, "A Design of Collision Avoidance System of an Underwater Vehicle", Journal of the Society of Naval Architects of Korea, 38(4), pp.23~29 (2001)
- A Digital Computer Techique for Prediction of Standard Maneuvers of Surface Ships, "Strom-Tejsen", ~ (1965)
- Tamura,K, "Study on the Blockage correction", Journal of the Society of Naval Architects of Japan, 131, pp.17~28 (1972)
- Umeda,N., "Hydrodynamic Forces Acting on a Longitudinally Non-symmetric Ship under Manoeuvring at Low Speed", Journal of the Kansai Society of Naval Architects(in Japanese), pp.127~138 (1989)
- The Navy Unmanned Undersea Vehicle(UUV) Master Plan, "U.S. Navy", ~ (2004)
- Vennard,J.K., "Elementary Fluid Mechanics, Sixth Edition", pp.628~634 (1982)
- 윤근항, "수중운동체의 목표추적시스템에 적합한 유도론 선정에 대한 연구", 대한조선학회 논문집, 42(4), pp.299~306 (2005), 대한조선학회