• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제14권2호
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• pp.15-23
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• 2008

The criterion of 'void space' in this paper is based on the sense of unusual experiences to afford the improvement of the value of cultural life with the sense of Healing. The more chances to spiritual converse with nature and oneself, the higher the value of healing experiences that one has will grow. This analysis has been done on the premises that this is derived from the inner conversation with 'nature' and 'oneself', as well as among 'others'. In other words, while the 'community void' affords programmatic aspect in relations between humans, the 'ecological void', systemic aspect in relations between human and nature, the 'meditation void', the aspect of image in relations between human and human's inside. Jong-soung Kimm and Hyo-sang Seung are Korean architects who have consistently expressed contrastive essential characteristics of the 'void space' in their contemporary works. While the void space of contemporary Korean architectures have shown various external forms, there has been a trace deeply rooted from the absolute and neutral concepts of the masters of Modern architects and 'Madang'of Korean traditional space. The integrated composition in the works of Jong-soung Kimm suggested integrated characters and healing affordances of 'Madang', but it hardly showed the poetic simplicity that could be seen from the image of traditional 'Madang'. On the other hand, the works of Hyo-sang Seung represented the simple and silent image of 'Madang', but showed fragmented characteristics that didn't sufficiently afford the integrated healing functions of 'Madang'.

• 한국실내디자인학회논문집
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• 제21권5호
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• pp.254-263
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• 2012

This study found out the change of spacial form of detached house in Korea on a 10-year basis from 1980s though analysis on the architecture of each period. For the subject houses of this study, the detached houses introduced repeatedly as excellent cases in technical journals for architecture were collected among those completed by architects who designed numerous houses and a survey was conducted on 18 detached houses of 18 architects among the in urban style houses in Seoul and suburban style houses in the suburbs of Seoul. Through this study, it could be found that, as the morphological application of traditional architecture was settled with spatial concept, the external spatial form of the detached houses in Korea after 1980s was changed to westernized form but the internal spacial form had been continuously changing suitable to our emotion by reflecting the living habit and taste with the traditional attitude to perceive and accept the nature. As for the change in the forms of interior space, vertical space with more than two floors became common. Front porch and stair hall, which were located at the center of a house and became an important spacial element that overlapped family's moving line, changed to open and bright space that used transparent glass and increased the space to contact the open air, reflecting our living habit and taste that preferred the feeling of internal openness. A Private space, main room, was more segmented and luxurious, and a public space, living room, secured the independency by getting close to symbolic yard. As for the change in the form of exterior space, the form of façade window has been changing in its location and size and brought free images due to the advancement of technology and material. The shape of roofs was borrowed from western style and a lot of geometrical forms that break away from the concept of angle rater and eaves are appearing.

• 대한조선학회논문집
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• 제31권3호
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• pp.12-18
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• 1994

공학설계에 있어서 최적해를 얻기 위한 방법중의 하나로 최적화방법이 많이 사용되어 왔으나, 기존의 최적화방법에서는 설계점이 국부 최적점으로 빠져 들어갈 경우 그 영역을 벗어날 수 있는 방법이 없기 때문에, 최적화의 초기점을 달리하여 반복계산을 수행하여야 하는 불편한 점이 있었다. 유전적 알고리즘은 기존의 최적화방법에 비하여 다수의 설계점을 동시에 탐색하는 특성이 있어 국부 최적점에 빠질 가능성이 적은 반면, 계산시간이 많이 소요되고 전체 최적점 근처까지는 잘 수렴하나 정확한 최적점을 잘 찾지 못하는 한계가 있다. 본 연구에서는 유전적 알고리즘과 직접탐색법을 결합하여 이들의 단점을 보완한 즉, 전체 최적점을 보다 효율적으로 찾고 계산시간을 줄일 수 있는 방법을 제시하였다. 이 방법은 유전적 알고리즘을 이용하여 최적점이 존재하는 영역을 찾은 후에, 그 영역에서 직접탐색법을 이용하여 보다 정확한 최적점을 찾는 것으로, 예제를 통하여 제안된 방법의 유용성을 보였다.

• 한국실내디자인학회논문집
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• 제25권4호
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• pp.51-59
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• 2016

Recent modern architecture shows a lot of cases that introduce natural light in indoor space, arousing diverse emotions within a minimal space by means of changes in the light. There are various causes for the background of these streams of times, and it may be said that pursuing the relationship between natural phenomena and space, using changes in light, is an important factor among them. This is closely linked to the raise of phenomenological architecture. In the case of Japan, there are many cases where the architectural language connected to the traditional architecture has been restructured to fit to modern architectural technique. The modern reinterpretation and development of the Japanese traditional effect of light and its meaning can be seen in cases of Kuma Kengo and Tadao Anndo. Of the modern architects that have used the appearance of spatial concept of light in Japanese architectural space, Kengo Kuma shows his attempt at finding identity in his designs through the acceptance and modern reinterpretation of orientalism of nature, along with the traditional and regional interpretation through materials and ways construction. It is his use oh light input used in traditional Japanese settings that have differentiated his work. On this, the present thesis intends to analyze and synthesize what impressions Kengo Kuma's unique methods of light production create in the formation of users' spatial perception, how the unique encounter of light and materials seems to perceivers, and the characteristics of his light production and expression that harmonize space, human, and nature in the visual and perceptual experience of space;

• 대한조선학회논문집
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• 제54권1호
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• pp.1-9
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• 2017

LNG has significant advantages in regard to environmental aspects comparing with conventional fuel oil. In fact, it is estimated that NOx and SOx emission can be reduced by about 90% and 100%, respectively in case of using LNG as a fuel. LNG-fuelled ship has been considered to be the best option both from an environmental and an economic point of view. Along with these trends, some major shipyards and Classification Societies have started to carry out the risk-based system design for LNG-fuelled ship such as passenger ship, platform supply vessel and large container vessel etc. However, new conceptual gas fuelled ship has high risk level compared with vessel using traditional crude oil especially in view of gas explosion accident. Therefore safety area where installed fuel gas supply system is required risk based system design with special considerations. On this paper, the entire process necessary for the quantitative risk analysis was explained to meet the satisfactory safety level of gas fuelled ship.

• 대한조선학회논문집
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• 제53권4호
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• pp.282-289
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• 2016

Traditional construction method of the stern tube is difficult to control the process and needs excessive working hours. Recently in order to resolve these issues, stern tube unit has been installed for some commercial vessels. The stern tube unit is a monolithic structure of bush and related components. The purpose of this study is to carry out a feasibility study for application of the stern tube unit for a 174K twin skeg LNG carrier. In this study, a 19,000 TEU container carrier installing the stern tube unit has been selected to compare with the deformations of stern for a 174K twin skeg LNG carrier.

• 대한조선학회논문집
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• 제54권5호
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• pp.361-367
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• 2017

A membrane type LNG cargo tank is equipped with a pump tower and a liquid dome for loading and unloading of LNG. However, the membrane running continuously on the tank wall to prevent leakage of LNG is interrupted by the liquid dome, hence care should be taken in the design of liquid dome and its substructures. In case of GTT NO96 membrane type cargo containment system, chair structure is arranged along the periphery of the liquid dome targeting to support the membrane which is exposed to the both hull girder and thermal load. This paper proposes a new and simple chair structure, which outperforms traditional design from productivity point of view maintaining same level of structural safety. Strength assessment on the new design was performed to guarantee the structural safety of the new design, which includes strength, fatigue and crack propagation analysis.

• 대한조선학회 특별논문집
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• 대한조선학회 2011년도 특별논문집
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• pp.55-62
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• 2011

Although the performance of the commercial vessel has been dramatically improved through innovations, there has been no big changes on the traditional anchoring method of commercial vessels, both on design and operation until now. In this paper, two cases of design modifications were introduced for optimized design of pocket type anchor handling, which resulted in improved performance of the vessel's anchoring. From the first time fully balanced type anchors were applied on vessels in Korean shipyard, main design problem on this application was that the anchor doesn't normally slide into the pocket when the anchor fluke is not in line with pocket, as the anchor freely rotates by the swivel on forerunner. In order to prevent the problem, swivel has been deleted on the forerunner to prevent anchor rotation until now, but this solution caused problems such as twist lock of anchor chain, restriction of windlass direction, etc. On this paper, one of the solution is introduced to overcome the design problem by tilting the hawse pipe to some extent, which makes anchor turned at the time anchor ring touches the pocket skirt and that it properly slides into the pocket. Secondly, one of the solution is introduced to overcome misalignment problem between anchor chain cable and roller of chain compressor, which has been frequently occurred, by modification of roller design.

• 대한조선학회논문집
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• 제42권6호
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• pp.559-565
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• 2005

As the wave impinges on and overtops the structure, a large highly aerated region is created in front of the structure and water splashs on top of the structure. The broken wave in front of the structure and associated green water on top of the structure are highly aerated containing not only a large number of bubbles but also very large sizes of bubbles. In this paper, the velocity field of the highly aerated region and the splashing water on the top is measured using a modified PIV method incorporating the traditional PIV method with the shadowgraphy technigue by correlating the ' texture ' of the bubble images. The velocity fields of a plunging wave impacting on a structure in a two-dimensional wave flume is measured. It is found that the maximum fluid particle velocity in flout of the structure during the impinging process is about 1.5 times the phase speed of the wave, while the maximum horizontal velocity above the top is less than the phase speed, It is also found that the dam breaking solution does not work well in predicting the green water velocity.

• 대한조선학회논문집
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• 제41권4호
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• pp.68-76
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• 2004

Inherent strain method for analyzing deformation of line-heating is substituting experiments of high cost, because of its high accuracy and quickness. Nowadays, the progressing forms of line-heating are not straight moving motions used to traditional studies, but weaving motions which can diversely input heat source. In shipyard, reasons of weaving motions are induction of a special characteristic by water cooling, maximum temperature limitation for keeping plates from melting, and rhythm for workman's maintaining velocity. On this study, a method which can obtain optimal weaving heating condition was presented, some examples were introduced, and the results corresponded to works of shipyard. Lastly, what the specifications of plates on efficiency are is presented, through the quality standard of shipyard and FEM heat transfer simulation. The ultimate purpose of line heating is the automation, so in case of plates which need weaving heating, the optimal heating condition suggested by this study can be used well in designing coil specifications of induction heaters which are heat input sources of new generation.