• Bulletin of the Society of Naval Architects of Korea
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• v.32 no.1
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• pp.55-59
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• 1995

선각부문뿐 아니라 의장 및 기본부문과도 연결시켜 상호정보교환이 되도록 개발이 되어있다. 본 고에서는 선각 CAD/CAM 시스템의 기능에 대해 간략하게 소개코저하며, 선각 CAD/CAM 시 스템을 이해하는데 다소 도움이 되었으면 한다. 설계에서 생산에 이르기까지 일관된 정보교환에 대한 지속적인 개발로 선각정보제공에 적합한 한국형 CAD/CAM 시스템을 만드는 것이 필요 하다. 특히 현장작업의 공법개선과 공장자동화에 따라 현장의 작업환경이 ROBOT화되어 가고 있으며 이에 따른 CAD로부터 CAM으로 넘겨주어야 할 많은 정보들이 요구되고 잇다. 선각 CAD/CAM 시스템적용에 있어서 우리 YARD 작업환경에 맞도록 적용하기 위해 필요할 때마다 해외유수시스템을 도입할 것이 아니라 이제 우리자신들이 기술개발을 통한 자체 방법을 찾아야 한다. 아무리 잘 구축이 되어 잇는 시스템을 도입하더라도 그냔 우리것에 맞추어 사용 하기는 힘이 들며, 따라서 우리 환경에 맞도록 구현된 시스템구축이 필요한 것이다. 우리자체 기술로 구축해 놓은 우리고유의 시스템으로 운영이 될 때 우리의 기술은 선진조선을 따라 잡을 수 있는 기반이 될 것이다.

• Journal of the Society of Naval Architects of Korea
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• v.37 no.2
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• pp.100-108
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• 2000

As U.S. congress and I.M.O. have recently adopted strengthened MARPOL73/78 regulations on marine pollution, it is necessary to develope a new type of tankers such as Double hull tanker(D/H Tanker) and Mid-deck tanker(M/D Tanker) and so on. Because most of researches are concentrated on the volume of oil spill due to collision of ships, in this paper, a structural design program for D/H Tankers and M/D Tankers is developed to suggest the effective type of tankers by comparing structural characteristics between their types. By this program, minimum hull weight designs of D/H tankers and M/D tankers considering tank arrangement are performed and the design results are compared each other. The efficient types of hull structure for the minimum weight design between D/H tankers and M/D tankers is proposed.

• Journal of the Society of Naval Architects of Korea
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• v.37 no.1
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• pp.118-126
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• 2000

An optimum structural design system for double hull oil tankers is developed based on the generalized slope deflection method which was previously proposed by the authors. For the optimization technique, the Hooke & Jeeves direct search method is applied to the minimum weight design problems with discrete design variables. A minimum weight design program is developed for the longitudinal members by the classification rules and for the transverse frames and the bulkhead members by the generalized slope deflection method. By this program, a minimum hull weight design of double hull oil tankers considering tank arrangement is performed and the design results are compared with existing ship. It is possible to find optimum tank arrangement and efficient types of hull structures for the minimum weight design of double hull oil tankers.

• Korean Journal of Heritage: History & Science
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• v.53 no.3
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• pp.24-41
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• 2020

The engraved line expression in metal crafts is a detailed technique of carving or decorating metal surfaces. This technique engraves a line using a tool on the surface of a metal craft. This technique was used extensively in articles made of various metal materials during the Goryeo Dynasty, and the range of patterns that could be expressed and the width of users was wide. In this paper, based on relics and literature, the concept of line representation of this engraving technique used in the metal crafts of the Goryeo Dynasty and the perceptions and terms of the Goryeo Dynasty were examined. In addition, the users engaged in this craft and the specific patterns and patterns of decoration were reviewed. Through these means, it was possible to confirm various aspects of a technique that was thought previously to involve just simple expression of lines using tools. In addition, through the literature, Geumseokmun Gate, and relics currently being transmitted, it was possible to confirm the utilization patterns of techniques used in various types of objects. Various uses have led to the combination with other metal craft techniques that were popular at the time, and while utilizing unique characteristics of the techniques, this maximized the molding of various patterns. In the meantime, it is true that the intaglio technique in metal crafts has not received much attention compared to the decoration techniques of other metal crafts, such as inlay, embossing, and openwork techniques in which decorative effects are maximized due to the recognition that the technique was used so widely in relics. However, the universality of the technique is premised on its wide use across all eras. As such, it was used in metal craft relics that reflect the various cultural characteristics of Korea and various cultural aspects that are currently passed down. On the one hand, technology has been passed down as a form of intangible heritage that embodies a longstanding craft culture which continues to the present in the fields of sculpture and intangible cultural properties. As such, the universality of Seongak contains many cultural meanings. In addition, the uniqueness of the technique is distinct, and it is deeply related to Goryeo, who was in charge of the use of technology and craftsmanship of the Joseon Dynasty and the metal craft technology that is currently handed down. I think research on future techniques should be continued in depth.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.04a
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• pp.77-82
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• 2004

This study presents reliability assessment of merchant ships with focus on hull girder ultimate limit state, taking into account the time-dependent effects of corrosion, fatigue cracking and local denting. Some considerations for establishing a reliability-based repair and maintenance scheme are also made so as to keep a ship's hull girder strength reliability at an acceptable level even later in life.

• Atmosphere
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• v.12 no.2
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• pp.15-16
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• 2002

• Atmosphere
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• v.13 no.2
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• pp.91-94
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• 2003

• Atmosphere
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• v.12 no.1
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• pp.22-23
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• 2002

• Atmosphere
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• v.11 no.4
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• pp.9-10
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• 2001

• Atmosphere
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• v.11 no.2
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• pp.13-14
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• 2001