• 대한인간공학회지
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• 제32권5호
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• pp.475-480
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• 2013

Objective: In this study, virtual reality was adopted to consider ergonomic factors in yacht design. Virtual human which is the same actual human was created in virtual environment using Digital Human Modeling which has been used in the manufacturing communities to design better workplaces and maximize the safety of workers. Background: During the past 40 years yachting has expanded from being, generally speaking, a minority sport - too expensive for the large majority of people - into a major recreational activity practiced by millions all over the world. Many new yacht designs have appeared and number of professional, as well as amateur designers has increased steadily. But they had not considered ergonomic factors in yacht design. Method: Worker's posture, traffic line and workload had been analyzed in sailing yacht. After the caution level was evaluated, we pointed out clues which had high workload and interference. To reduce workload, we applied ergonomic principles for improving working conditions and environments in Digital Human Model. Results: We found the space problems and workload of postures. Conclusion: (1) Unnatural posture of crews was sustained. (2) Workload that occurs in the human body was overloaded. (3) Crew's work space was very narrow. Application: This study will be applied the new ergonomic design of yacht.

• Journal of Advanced Marine Engineering and Technology
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• 제30권1호
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• pp.109-115
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• 2006

An overview of 30 feet sailing yacht design is presented. with an emphasis on the factors contributing to start-up Popularization . After prescribing the configurations of the purposed yacht. the design of the hull form with a rudder and a keel, are schematically described. Also the determinations of the dimensions of the sail and rig are performed.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2005년도 전기학술대회논문집
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• pp.818-823
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• 2005

An overview of 30 feet sailing yacht design is presented, with an emphasis on the factors contributing to start-up popularization. After prescribing the configurations of the purposed yacht, the design of the hull form with a rudder and a keel, are schematically described. Also the determinations of the dimensions of the sail and rig are performed.

• 대한조선학회논문집
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• 제49권1호
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• pp.93-98
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• 2012

In this study, we introduced image processing technic to measure shape variations of general bodies and applied it to the flexible yacht sail. Shape measurements of simple bodies sails were carried out and results showed that technic can be a reliable method to measure shape variations of the flexible yacht sail. The sail shape variation of 30ft sloop type yacht sail is measured on different sailing conditions. As velocity and direction of wind are increased, trailing edges in the upper part of the sail become more open than the lower part of the sail which are not changed. So it is confirmed that the shape measurement of a sail shape depending on a sailing condition is possible to use image processing scheme.

• 수산해양기술연구
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• 제51권1호
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• pp.9-15
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• 2015

A Korean-designed cruiser class sailing yacht, based on the form of traditional yachts, has been developed. In this paper, structural design procedures for the yacht are studied. The scantling of structural members and loads is carried out based on the guidelines suggested by Australian Standard 4132-1993, the American Bureau of Shipping (ABS) and the International Organization for Standardization (ISO). Patran/Nastran finite element analysis is performed on models of the trial sailing boat, and from these results, the structural strength of the ship's hull is verified.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2003년도 추계학술대회 논문집
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• pp.30-34
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• 2003

The coast area of our country has various tourist attraction factors of its own such as plenty of islands, uncontaminated waters and so on. Nevertheless, sea tourism and leisure facilities have not been developed enough since the national tourist/leisure policies have mainly been focused on the land tourism so far. Recently, the lake and sea areas are becoming more an more popular to people for spending their leisure times, and they, especially the young generations, are eagerly searching for some good ocean spots to enjoy the dynamics maritime sports. In this paper, we worked on the first design phase of environmentally and visually adaptive yacht, taking the cost effectiveness and the safety factors into account as well.

• 대한조선학회논문집
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• 제43권4호
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• pp.414-421
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• 2006

Yacht is operated by wind-driven thrust on the saii, but also experiencing the side force. Thus the keel attached on the bottom of main hull prevents it from flowing sideway. Since the keel affects the stability and thrust of yacht, its selection is one of the most important factor in design. In the present paper the correlation between yacht hull and keel was investigated. through comparison of forces measured at various combinations of heeling and leeway angles with and without keel. Keel-only test was also performed to find out the drag and lift characteristics of keel itself. finally three different types of keel, i.e. fin keel, bulb keel and winglet keel were tested to compare their advantages and drawbacks.

• 대한조선학회논문집
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• 제44권2호
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• pp.64-73
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• 2007

Turbulent flows around yacht sails were calculated to access the applicability of CFD for yacht design. Multi-block grid system was generated by using Gridgen package and Fluent was used to calculate flows around two sail system. A 30ft class sailing yacht designed and tested by KRISO was chosen. The interference effect between main and jib sails was analyzed. Pressure distribution on the sails was obtained and the center of effort was estimated. It was found that the jib angle affects the flow phenomena around a main sail due to the change of inflow angle. The location of center of effort is much different from the empirical formula based on a simple geometrical consideration. The calculated results are compared with the previous numerical and experimental results. Both CFD results are similar, but there are some discrepancies with experimental data. However, it is certain that CFD can be a very useful tool for yacht design.

• 대한조선학회논문집
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• 제44권3호
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• pp.248-257
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• 2007

Turbulent flows around a sailing yacht hull were calculated using CFD technique. Grid system was generated by using Gridgen package and Fluent package was used to calculate flows around a 30ft-class yacht hull designed by MOERI. The drafts at starboard and port sides of a yacht. when the hull was heeled, were determined by adjusting the same displacement in the generated grid system. Pressure distribution on the sailing yacht hull was obtained and the changes of drag and side force by heel and leeway variation were shown. The flow calculations have been carried out both with and without free surface, and keel and rudder were included for both cases. It was found that the calculated results with free surface gives better agreement with experiments than those without free surface, although there are still a room for the improvement in correct prediction of forces.

• Asia Pacific Journal of Business Review
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• 제6권1호
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• pp.61-73
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• 2021

This study attempted to examine the structural relationship between the main factors that determine the intention to continue participation in yacht activities. Specifically, motivation for yacht activities was divided into achievement motivation, social motivation, escapist motivation, conspicuous motivation, and hedonic motivation, and the effect of each motivation on the satisfaction and continuous intention of yacht activities was examined. This study surveyed 338 ordinary people who were interested in yacht activities or had experience in yacht activities, and verified the main hypothesis through regression analysis. The main analysis results of this study are as follows. First, it was found that achievement motivation did not affect satisfaction. Second, it was found that social motivation had a positive (+) effect on satisfaction. Third, it was found that escapist motivation had a positive (+) effect on satisfaction. Fourth, it was found that the conspicuous motivation had a positive (+) effect on satisfaction. Fifth, it was found that hedonic motivation had a positive (+) effect on satisfaction. Sixth, it was found that the achievement motivation had a positive (+) effect on continuous intention. Seventh, it was found that social motivation did not affect continuous intention. Eighth, it was found that escapist motivation had a positive (+) effect on continuous intention. Ninth, it was found that the conspicuous motivation did not affect continuous intention. Tenth, it was found that the hedonic motivation had a positive (+) effect on continuous intention. Eleven, satisfaction was found to have a positive (+) effect on continuous intention. This study derived academic and practical implications based on the analysis results and proposed future research directions.