• 한국항해학회지
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• 제21권2호
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• pp.1-9
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• 1997

This paper presented a method of evaluating navigational safety of a ship by means fo the integrted seakeeping performance index(ISPI). The ISPI is defined by measuring only any one factor through the medium of relative dangerousness of the other factors for evaluating seakeeping performance. This evaluation method can be applied to the ships for any types and loading conditions. In devloping the practical evaluation system of navigational safety, it is expected to be useful to solve the difficulties in measuring factors by sensors. The results are also useful for devloping the optimum type of ship by applying at the initial design phase.

• 해양환경안전학회지
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• 제2권1호
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• pp.47-55
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• 1996

This paper intends to evaluate the seakeeping performance in consideration of nominal speed loss of ships in a seaway. Authors calculate the nominal speed loss in the Sea State of Beaufort Scale 6, 7 & 8 and obtain each response amplitude of ship;s motion by New Strip Method in consideration of them. This study presents some results of the seakeeping performance by the maximum dangerouseness of ships on each sea state.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1997년도 춘계학술발표회 논문집
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• pp.5-16
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• 1997

This paper presented a method of evaluting navigational safety of a ship by means of the integrated seakeeping performance index(ISPI). The ISPI is defined by measuring only any one factor through the medium of relative dangerousness of the other factors for evaluating seakeeping performance. This evaluation method can be applied to the ships for any types and loading conditions. In developing the practical evaluation system of navigational safety. it is expected to be useful for developing the optimum type of ship by applying at the initial design phase.

• 한국항해학회지
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• 제24권3호
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• pp.103-111
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• 2000

From a ship's safe operation point of view, it is very important to estimate the navigational safety in a seaway. The seakeeping performance can be defined as the ability of a ship to go to sea, and to accomplish its missions successfully and safely even in adverse environmental conditions. There are several factors presently adopted for evaluating seakeeping performance. But a hardware of the system considering all these factors has not been developed since some of them can not be measured by sensors. In this paper, a synthetic method of evaluating navigational safety is developed by measuring the vertical and lateral acceleration. An experiment by using real measuring carried out on board the T/S 'HANNARA' The equipment was measured every 4 hours for more than 30 minutes the acceleration by accelerometer, analyzed its acceleration values and calculated navigational dangerousness. As the results of this on board experiment, the system is carried conviction to be useful as evaluating seakeeping performance.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2017년도 추계학술대회
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• pp.48-49
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• 2017

이 연구에서는 선내시스템 원격모니터링서비스 내 내항성 안전지수별 위기대응가이던스 개발을 위해 기존 비상대응절차를 조사, HAZID 기법을 이용하였다. 이는 항해중 선박에서 내항성능 이상으로 인한 해양사고 저감을 위해 효과적이고 효율적으로 대응하기 위함이다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1998년도 춘계학술발표회 논문집
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• pp.90-100
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• 1998

There is a limitation for a ship which is sailing on sea to gather weather and seastate informations. To make up for this weakness , land organizations can gather wider variety of information and evaluate the seakeeping performance on ship. and supply this information to the ship. In this study, calculated the response amplitude of ship motions with the weather information provided in real time, the norminal speed loss with obtaining increased of resistance caused by wave and stochastic process of the seakeeping performance elements. And the results have been achieved to develop a system whichcan evaluate the synthetic seakeeping performance. Using this system , the results have been studied to determine the feasibility of using this simulation inactual operation onboard ship.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 1992년도 춘계학술발표회 한국항해학회
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• pp.21-43
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• 1992

The recently-developed automated vessels require a system which evaluates the operating condition of the ship at present position form weather information as well as sensors; forecasts the operation condition the sea state to come in foreseeable future ; and suggests the optimum course and speed for ship's sa-fety. According to a study deck wetness propeller racing slamming rolling vertical acceleration lateral acce-leartion vertical bending moment at midship etc. were chosen as the factors for evaluating seakeeping per-formance. As a mater of fact there is no developing the hardware of a system which could consider all the factors onseakeeping performance. This study introduces a theoretical method which makes it possible to evaluate the seakeeping perfor-mance byapplying a theory from reliability engineering and thereby establishing a safety space. lation of stochastic processes with the factors presently adopted for evaluating sekakeeping performance. and develops the overall eseakeeping performance evaluation system in consideration of the safety of human being cargoes and the ship This method of evaluation shall be of much use in developing the practical system of seakeeping perfor-mance of a ship in waves.

• 한국항해학회지
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• 제22권2호
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• pp.23-32
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• 1998

There is a limitation for a ship which is sailing on sea to gather weather and seastate informations. To make up for this weakness, land organizations can gather wider variety of information and evaluate the seakeeping performanceon ship. And supply this information to the ship. In this study, calculated the response amplitude of shp motions with the weather information provided in real time, the nominal speed loss with obtaining increase of resistance caused by wave and stochastic process of the seakeeping performance elements. And the results have been achieved to develop a system which can evaluate the synthetic seakeeping performance. Using this system, the results have been studied to determine the feasibility of using simulation in actural operation onboard ship.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2010년도 춘계학술대회
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• pp.385-386
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• 2010

선박의 상하동요 및 종동요 간의 내항성능은 승객에게 피로감을 주며, 적재된 화물과 선체에 탑재된 재설비에 구조적 하중을 가져오게 된다. 이러한 점을 개선하기 위해 소형 카타마란 파워요트 설계시 해당 실적선 조사와 선저형상을 결정하여 선형을 설계하였다. 본 연구에서는 국내 연안의 해양환경에 대한 기초자료를 토대로 운동성능 해석조건을 선정하였다. 이를 통해 카타마란형 레저선박의 운동성능을 선속에 따라 고찰하였다. 파도와 선박의 만남각에 따른 내항성능을 추정하여, 파랑의 만남주파수에 대한 응답진폭비와 운동성능이 우수한 영역에 대해서 평가하였다.

• 대한조선학회논문집
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• 제52권4호
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• pp.290-297
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• 2015

This research is focusing on the added resistance and seakeeping ability of the designed passenger ship with gooseneck bulb(Designed hull) which provide the improvement of resistance performance under calm water condition. By comparing the added resistances and seakeeping abilities of the reference hull and the designed hull form with gooseneck bulb, it is confirmed that there is little difference in the operational comfort and the reduction of ship speed. As a result, the applied gooseneck bulb in this study is verified for the applicability to medium-sized passenger ships with a good resistance performance.