• 한국해양공학회지
• /
• 제31권2호
• /
• pp.141-154
• /
• 2017

A production management system is developed to enhance both the information and productivity of ship and offshore plant deckhouse floor outfitting. The functions of the production management system for the deckhouse floor outfitting were reviewed based on a literature survey of several production management systems with respect to the ship building and architecture fields. This study investigated numerous daily production reports and their application to actual work places to utilize the system development. The developed scanned drawing-based production management (SDPM) system minimizes any loss and/or distortion of work information between the workshop and management office when applying a scanned production drawing to the daily report. The SDPM system increases the data objectivity, as well as intuitiveness of the information generation by adopting an efficient user interface, which makes it possible to perform image annotations on the scanned drawing for the daily production report while simultaneously interacting with the production management database. Applying the system operation to actual deckhouse floor covering work verified that it was feasible to use the SDPM system for production management in the ship outfitting work process.

• 한국산업융합학회 논문집
• /
• 제22권3호
• /
• pp.353-364
• /
• 2019

The walk-way means a passage installed on the deck of a ship so that a person can safely move under any circumstances. So, the walk-way has to maintain a temperature of $5^{\circ}C$ or more for anti/de-icing even at an ambient temperature of $-62^{\circ}C$, a temperature in polar region. At present, the walk-way with heating cable is used, but the anti/de-icing effect is insufficient due to low heat transfer efficiency. Also, it has a construction problem due to heavy weight. In this study, an walk-way with a CNT surface heating element is proposed for the high anti/de-icing effect and the heating value per unit volume. The international standard survey, conceptual design, and simulation for the structural safety and the heat transfer are performed for the development of the proposed walk-way. To enhance the performance, the case studies based on the simulation analysis are conducted. Finally, the final prototype, applying the optimum material and thickness (3.2t of SS400) based on the case study results, is fabricated and experimented.

• 한국항해항만학회:학술대회논문집
• /
• 한국항해항만학회 2016년도 춘계학술대회
• /
• pp.100-102
• /
• 2016

선박에 고립성에 의해 선원들은 선상 화재 시 직접 화재를 진압해야하는 위험에 직면해있다. 따라서 현재의 규정에 따른 소방원 장구나 화재진압 시나리오가 안전하고 유효한 것인지에 대한 실제적인 검증이 필요하다. 이에 해상과 육상의 소방원 장구 및 화재진압 시나리오를 비교하고, 실제 선박에서의 화재발생 장소 및 빈도의 통계를 산출하여 현재의 선상에서의 화재진압 시스템 및 소방원 장구의 한계점을 입증하였다. 그리고 실제 선종 및 크기별 각선의 도면을 검토하여 화재 발생 빈도가 가장 높은 선내 구역까지의 거리 등을 산출하여 더 많은 실험군에 대한 실제 소방원 장구 착용자 인원수의 증감 및 환경의 변화에 따른 실험 및 현직 승무원들을 대상으로 한 설문조사를 통해 가장 이상적인 소방원 장구 및 화재진압 시나리오를 도출하고자 한다.

• 해양환경안전학회지
• /
• 제23권1호
• /
• pp.47-55
• /
• 2017

본 연구는 수신호 통일지침 개발을 위한 사전연구로 선박작업시 의사소통 수단으로서 수신호 체계의 활용가능성과 표준화 타당성을 검토하였다. 실증연구에 앞서 선박안전관리자의 의견을 수렴하여 수신호 활용가능성이 있는 선박작업활동을 분류하고, 이러한 작업활동 하에 작업자의 수신호 활용의사와 제도적 표준화 선호도를 측정하였다. 통계분석(t-검정, 상관관계분석) 결과 응답자들은 근무형태(선원/육상선박 안전관리감독)와 근무환경(갑판부/기관부)에 관계없이 수신호 소통이 가능한 작업활동에서는 표준화된 수신호 체계를 의사소통 수단으로 적극 수용할 의사가 있었다. 또한, 주어진 선박작업활동 종류에 따라 응답자의 수신호 활용빈도는 유의미한 차이가 있으나 표준화 선호도와는 강한 양(+)의 상관관계에 있었다. 따라서 후속연구로 응답자의 수신호 활용빈도가 높은 크레인 운용, 윈드라스 윈치 운용, 삭류 이동/전달, 화물창 운용 등 항만내 작업활동들을 우선순위로 수신호 통일지침을 설계한다면 선박작업자간 의사소통 개선에 효과적일 수 있다는 결론을 얻었다.

• 융합신호처리학회논문지
• /
• 제21권1호
• /
• pp.13-20
• /
• 2020

조선소에서는 선박 건조 시 설계 및 각 선체 블록의 제작 조립 후 선행의장이라는 것을 실시한다. 선행의장은 선체를 제외한 다른 부품, 장비들을 탑재하는 것을 의미하는데, 이 과정에서 블록 내 존재하는 파이프 및 다양한 장비들의 체결이 각 블록 간 조립 시 정확히 이루어지지 않는다면 오작업 및 그에 따른 생산품질 저하와 재작업 등에 따른 막대한 비용이 발생한다. 또한 이미 완료한 의장작업이라도 파이프 및 내부 자재 공간배치 등의 문제 발생 시 재작업에 따른 선박 생산효율이 나빠진다. 따라서 본 연구에서는 이러한 문제점 해결을 위해 3D 설계도면을 이용하여 공존현실 기술을 기반으로 한 선체의장 작업 전후 공간 배치 및 검사 시스템에 대해 소개하고자 한다. 본 연구에서 개발 및 소개한 다양한 공존현실 알고리즘 및 검사 시스템은 국내에는 도입이 전무한 AR 서비스를 기반으로 하고 있으므로 조선 선박제조 공정뿐 아니라 자동차, 건축 등 설계도면을 이용한 다양한 제조 산업 분야에 널리 적용 가능할 것으로 사료된다.

• 대한조선학회논문집
• /
• 제40권4호
• /
• pp.37-45
• /
• 2003

Model tests using 2.0m model of the series 60 form( $C_{b}$= 0.6) were carried out in the Circulating Water Channel (CWC) in the Chosun University (CU, Korea) for the purpose of a correlative study with Towing Tank (TT). Resistance, propeller open water, self propulsion and wake survey tests were carried out and the results were extrapolated to the ship scale. These results were compared with the extrapolated ship values based on the model test of 7.0m model in the TT at the Korea Research Institute of Ships and Ocean Engineering (KRISO, Korea). The CWC test results were correlated with the results of the towing tank tests.s.

• 한국해양공학회:학술대회논문집
• /
• 한국해양공학회 2003년도 추계학술대회 논문집
• /
• pp.70-75
• /
• 2003

Model tests using 2.0m model of the series 60 form ($C_{b}$ = 0.6) were carried out in the Circulating Water Channel(CWC) in the Chosun University(CU, Korea) for the purpose of a correlative study with Towing Tank(TT). Resistance, propeller open water, self propulsion, and wake survey tests were carried out and the results were extrapolated to the ship scale. These results were compared with the extrapolated ship values based on the model test of 7.0m model in the TT at the Korea Research Institute of Ships and Ocean Engineering (KRISO, Korea). The CWC test results were correlated with the results of the towing tank tests.

• 대한원격탐사학회:학술대회논문집
• /
• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
• /
• pp.926-929
• /
• 2006

Some features of vertical structure of the frontal interaction zone of the warm Kuroshio Current and cold Oyashio Current are known from 1930 from analysis of ship data. Ship data however do not allow carrying out the area detailed survey opposite to satellite infrared (IR) observations which possess by high spatial and temporal resolution. Analysis of NOAA AVHRR IR images demonstrated that process of formation and development of the Kuroshio warm core rings is highly complex. They are formed as a result of development of anticyclonic meanders of the warm Kuroshio waters and spin off them from the current. Joint analysis of thermal infrared images and altimetry data has also indicated that interaction of eddies to the frontal zone plays a crucial role in formation of large eddies moving to the Southern Kuril region.

• 한국측량학회:학술대회논문집
• /
• 한국측량학회 2010년 춘계학술발표회 논문집
• /
• pp.35-37
• /
• 2010

To construct precision geoid model, the gravity data having equal distribution and quality is necessary. In previous study, however, the geoid model has low precision since the biased distributed gravity data and some unverified data has been used and the gap between land and ocean exists. Now, the airborne and land gravity data was collected by various survey and the ship-borne gravity data and altimeter data has been achieved. Therefore, the precision geoid model development would be possible. And the GPS/Leveling data obtained by NGII could be used for construction of hybrid geoid in Korea. In this study, the procedure of geoid construction based on airborne, land, ship-borne and altimeter data using Remove-Restore technique will be explained. And the verification of gravimetric geoid and hybrid geoid would be introduced.

• 한국항해항만학회지
• /
• 제35권2호
• /
• pp.137-147
• /
• 2011

The prime objective set for paper is to identify what are the women seafarers' problems and concerns regarding employment on cargo ships. From the cargo ship point of view, the question then is how to provide sufficient solutions for women seafarers in the male-dominated workplace of the ship through Corporate Social Responsibility(CSR) activities. The methodologies of study combine qualitative and quantitative research methods. The progress of research is to conduct a survey by asking a consistent set of key opinion leaders from the Republic of Korea. Moreover, to evaluate the elements of the result, the research explores the way in which we should consider giving priority to aspects of the problem. Finally, based on the terms of CSR, the author recommends measures to support the needs of women when they are employed onboard the world's merchant vessels.