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경어뢰 운용전술연구지원을 위한 구성시뮬레이션 및 모의실험
이심용,고승렬,Lee, Sim Yong,Go, Seung Ryeol 한국군사과학기술학회 2016 한국군사과학기술학회지 Vol.19 No.6
Technical approach on the modeling, simulation and experimentation methods, which are applied for developing a constructive simulation and engagement experimentation software for supporting light weight torpedo operational tactics study, is introduced. Conceptual modeling for the weapon engagement and simulation entities, mathematical models for the simulation elements, approach for the design of experimentations are described, and screen shots of the software are also presented as some example results of experimentation and analysis. It is found that the simulation and experimentation results are useful to support and fulfill the mission needs and requests. As a consequence, the technical approach is rated to be appropriate to accomplish the dedicated purpose of the simulation and experiments.
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나영인,이심용,Nah, Young-In,Lee, Sim-Yong 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.6
The analysis of water-entry impact forces acting on the fin shaft of high speed water-entry body is described. During the entry of high speed body into water, the physical phenomenon and flow properties are analyzed. A proper analysis model is established and the method to estimate the flow force which causes impact torque at the fin shaft is described. It is assumed that the fin shaft is damaged by the force which is induced by contacting with cavity wall. The pressure distribution of fin and the maximum torque are estimated and compared with breaking force. Conclusively, it is hard to resist water-entry impact force in terms of the reinforcement of fin shaft. Additionally safe equipment is essentially required.
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나영인,이심용,윤한샘,Nah, Young-In,Lee, Sim-Yong,Yoon, Han-Saem 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.5
Exploiting models and simulations are encouraged among the defense acquisition society, as now enforced by the Defense Aquisition Program Administration's regulations. They are useful and, sometimes, inevitable especially in an earlier phase of system development. Computer-simulation-based experimentation technique for the system operational performance analysis for a torpedo defense system is introduced in this paper. Problem definition for the torpedo defense system analysis and engineering efforts for models and simulations development are presented here, including defining measures of performance and effectiveness for the torpedo defense system, conceptual modeling for torpedo engagement and defense simulation, design of experimentation, design of simulator and experimentor, and hardware and software implementation of an analysis support tool - a system operations demonstration and experimentation simulator.
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나영인,이심용 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6
수중운동체 항력(Drag)의 대부분은 마찰저항(skin friction)에 의한 것이다. 마찰저항은 수중운동체의 표면과 이에 접한 유체를 전단시키는데 필요한 힘으로, 이러한 힘은 공기 중에서도 요구되어지지만 물의 경우 공기에 비하여 밀도가 1000배나 크기 때문에 동일물체에 있어서 수중 저항은 공기중 저항의 1000배에 이른다. 더욱이 추진에너지(power)는 물체속도의 세제곱에 비례하므로 단순히 에너지를 증가시켜 달성할 수 있는 수중운동체의 속력 증가는 한계에 부딪히게 된다. 초공동화 기술(Supercavitating Technology)은 수중운동체의 마찰저항을 줄이는 방법 중의 하나로서, 임의의 조건 하에서 단일 기포로 운동체를 완전히 덮어, 초공동 속에서 주행하는 운동체가 물과 직접 접한 두부(nose)를 제외하고 물에 비하여 점성과 밀도가 훨씬 낮은 수증기로 대부분 둘러싸이게 되어 마찰저항이 거의 사라진 극소의 저항을 받도록 만드는 것이다. 본 논문에서는 초공동화 어뢰체계 개발을 위한 핵심 소요기술과 각국의 초공동화 어뢰 관련 연구개발 동향을 살펴보고, 발전방향을 조망해 보고자 한다.
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황아롬,김문환,이심용,윤재문,김찬기,Hwang, A-Rom,Kim, Moon-Hwan,Lee, Sim-Yong,Yoon, Jae-Moon,Kim, Chan-Ki 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.5
Mine countermeasure missions(MCMs) may induce the loss of human and ship because of the covert of mine. In recent years, unmanned underwater vehicles(UUVs) have emerged as viable technical solution for conductimg underwater search, surveillance, and clearance operations in support of mine countermeasure missions because of her autonomy and long time endurance capability. This paper introduces a technical approach to mine countermeasure mission effectiveness analysis and presents some simulation-based analysis results for engineering of the UUV system definition which could be support analysis of alternatives for system definition and design.
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기뢰 탐색 작전용 무인잠수정 효과도 분석 시뮬레이션을 위한 시뮬레이션 모델 연구
황아롬,김문환,이심용,Hwang, A-Rom,Kim, Moon-Hwan,Lee, Sim-Yong 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.4
In recent years, unmanned underwater vehicles(UUVs) have emerged as viable technical solution for conducting underwater search, surveillance, and clearance operations in support of mine countermeasure missions(MCMs) because of her autonomy and long time endurance capability. It is necessary for UUV for MCM system design to define system specification from various configuration alternatives. This paper introduces a simulation model for mine countermeasure mission effectiveness analysis and presents some simulation results under various tide conditions for validation of the proposed simulation model.
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