• International Journal of CAD/CAM
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• 제2권1호
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• pp.39-44
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• 2002

This paper presents a structure and architecture of an integrated simulation method (ISM) to meet the requirements of virtual factory engineering (VFE). Combining CAD, VR and discrete event simulation techniques, the ISM provides static and dynamic simulation functions for implementation of VFE throughout the lifecycle. The static simulation can be used to evaluate the factory layout. The dynamic simulation enables us to evaluate ergonomics of factory, process performance of production system, feasibility of production plan and operation of factory, and to train operators safely, which cover the whole VFE lifecycle. The principles of the key techniques of VFE, including virtual factory data management system (VFDMS), static and dynamic simulation, are also discussed. To demonstrate and validate the ISM, a case study has been carried out in an assembly factory.

• 건축역사연구
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• 제30권2호
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• pp.29-43
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• 2021

The purpose of this paper is to find out the identity and succession of traditional Hanok villages by analyzing the location, layout, and spatial organization of neo-Hanok Village, which was built in Korea. So far, neo-Hanok Village has not prepared a specific institutional mechanism despite the government's support and growing public interest. In addition, the purpose of neo-Hanok Village has not been verified, even though it was built all over the country for the purpose of the dignity and succession of the traditional Hanok Village. This study examines how the spatial organization elements of the traditional Hanok Village are planned according to the design principles of the old literature and applies them to the neo-Hanok Village to determine the succession of the traditional Hanok Village.

• 대한건축학회논문집:계획계
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• 제35권9호
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• pp.119-129
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• 2019

The purpose of this paper is to study the meaning of Rem Koolhaas's works focused on Villa Dall'Ava. This House which offers a fine example of the early architectural concepts of Rem Koolhaas was completed in 1991, 7 year earlier than the Maison Bordeaux and also this work is the only one house constructed in Paris. Rem Koolhaas, one of the most influential architects representing contemporary architecture in these days is interpreted so diversely as new constructivism, deconstruction and new scientism etc. The relationship between Modernism architecture and the architecture of Rem Koolhaas is supposed in various point of view in recent studies. Although the leading background on which the architectural inclination of Rem Koolhaas is de-constructivism, various interviews, editorials and other perspectives give clue that Rem Koolhaas was influenced by Modernism. His architectural concept is connected with the architectural principles of Le Corbusier: 'Five Points of a New Architecture' and 'Dom-ino system', which are especially applied a lot to Villa Dall'Ava in the modified form. This study is to research the architectural characteristics of Villa Dall'Ava by analyzing the layout, plan, elevation, section and structure, which revealed the architectural connectivity between the concept of Rem Koolhaas and the architectural principles of Le Corbusier which had a great effects on architectural history and became a fundamental elements for the change into the modern architecture. In practice, the architectural work of Rem Koolhaas remind the architectural principles of Le Corbusier. This research appraises each points of 'Five Points of a New Architecture' in regarding with Villa Dall'Ava whose study will be important to find the meaning of the works and ideas of Rem Koolhaas.

• Structural Engineering and Mechanics
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• 제48권5호
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• pp.615-642
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• 2013

In this paper a study on prestressed concrete slab bridges is presented. A design philosophy based on the concept of load balancing through prestressing is proposed in order to minimize the effects of delayed deformations due to creep. Aspects related to the stress redistribution inside these bridges for time-dependent phenomena are analyzed and discussed, by applying the principles of aging linear visco-elasticity. Prestressing is seen as an equivalent external load which counterbalances the permanent loads applied to the bridge, nullifying the elastic deflections due to sustained loads, and thus avoiding the related delayed deformations. An optimization of the structural behavior through the use of one-way prestressing is achieved. The determination of a convenient variable depth of slab bridges and the correspondent layout of tendons is considered as a useful means for applying the load balancing concept in actual cases of structures like long cantilevers or bridge decks. A case-study related to the slab bridges built 30 years ago at Jeddah in Saudi Arabia is presented and discussed, in order to show the effectiveness of the proposed approach to the conceptual design of prestressed concrete bridges.

• Structural Engineering and Mechanics
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• 제12권6호
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• pp.685-698
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• 2001

In this paper, a general method for the automatic search for Strut-and-Tie (S&T) models representative of possible resistant mechanisms in reinforced concrete elements is proposed. The representativeness criterion here adopted is inspired to the principle of minimum strain energy and requires the consistency of the model with a reference stress field. In particular, a highly indeterminate pin-jointed framework of a given layout is generated within the assigned geometry of the concrete element and an optimum truss is found by the minimisation of a suitable objective function. Such a function allows us to search the optimum truss according to a reference stress field deduced through a F.E.A. and assumed as representative of the given continuum. The theoretical principles and the mathematical formulation of the method are firstly explained; the search for a S&T model suitable for the design of a deep beam shows the method capability in handling the reference stress path. Finally, since the analysis may consider the structure as linear-elastic or cracked and non-linear in both the component materials, it is shown how the proposed procedure allows us to verify the possibilities of activation of the design model, oriented to the serviceability condition and deduced in the linear elastic field, by following the evolution of the resistant mechanisms in the cracked non-linear field up to the structural failure.

• 디지털융복합연구
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• 제19권1호
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• pp.343-348
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• 2021

본 연구는 재사용 가능한 디자인 시스템 구출을 위한 프레임워크 제안을 위해 아토믹 디자인 시스템을 기반으로 블록을 구성하여 조합하는 방법에 대해 알아보았다. 그를 위해 디자인 시스템의 필요성과 스노우화이트, 스큐어모픽 디자인, 플랫디자인 및 머티리얼 디자인의 사례를 우선적으로 살펴보았다. 또 화학의 원리를 메타포로 사용하는 아토믹 디자인의 분자, 원자, 유기체, 템플릿 그리고 페이지를 문헌 연구를 통해 정의하였다. 새로운 프레임 워크를 구현하기 위해 인터페이스 인벤토리를 구성하고 그 중에서 폰트, 컬러, 이미지와 컨트롤 요소를 핵심 시각 요소로 추출하여 가이드라인을 정의하였으며 그를 바탕으로 분자 요소를 분류하고 원자로 구성할 수 있었다. 블록은 콘텐츠 인벤토리에서 가장 많이 사용되는 디자인 패턴을 기반으로 블록 형태고 구성되도록 하여 블록의 조합을 통해 시각적 그리드를 바탕으로 레이아웃을 구현하고 페이지를 디자인하도록 프레임워크를 구성하였다. 새로운 프레임워크는 블록의 재사용으로 팀의 일관성과 협업을 도우며 파일의 공유와 업데이트를 지원한다는 것에 본 논문의 의의가 있다.

• 한국포장학회지
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• 제30권2호
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• pp.121-129
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• 2024

This study aimed to focus on the optimization of the external dimension sizes in the corrugated fiberboard cartons (CFCs) for exporting agricultural products. The commercial CFCs of current fresh produces such as paprika, Asian pear, melon, sweet potato, and oriental melon for export were used for this study. The guidelines of the minimum internal dimensions of the refrigerated reefer container, the dimensions of pallets, and the maximum load height of a stack were referred to KS T ISO 668, KS T 1372, and the Container Handbook by the German Insurance Association, respectively. These principles were selected as a ground rule for the external dimensions of CFCs. Package layout design programs of ArtiosCAD and Cape Pack software were used to confirm the box stacking patterns and revise the external dimension of CFCs. The final external dimensions of each CFC were revised from 5 to 30 mm compared to its original dimensions. The maximum load of each stacking box per pallet has been increased from 0.0 to 12.5% compared to its original load.

• 실천공학교육논문지
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• 제14권2호
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• pp.235-244
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• 2022

본 연구는 상용 제품인 골프공디스펜서의 공학설계를 주제로 하는 기계공학 교과목 개발 및 운영 사례를 제시하고 있다. 교과목은 김종원과 W. Beitz가 제안한 체계적인 공학설계 방법에 따라 수행되었다. 이 방법은 공학설계를 크게 '제품기획 → 개념설계 → 기본설계 → 상세설계'의 4단계로 나누고 있으며, 특히 개념설계 단계를 '기능구조도→세부기능에 대한 동작원리 탐색 → 다양한 설계대안 창안 → 최적설계대안 선정'으로 구분한다. 개념설계에서는 골프공디스펜서의 입출력을 정의하고 이에 대한 기능구조도를 작성한다. 이 과정을 통해 제품의 기능을 세분화하고 각각의 동작원리를 체계적으로 탐색할 수 있다. 또한 다양한 동작원리를 조합하고 이를 평가하여 최적설계대안을 도출한다. 기본설계에서는 고장모드 분석을 통해 시제품 레이아웃을 완성하고 이를 활용하여 실제 시제품을 제작하고 성능을 평가한다. 이상과 같은 과정을 통해서 수업에 참여한 학생은 상용제품을 체계적인 방법으로 설계해보고 시작품까지 제작해보는 경험을 기계공학과 교육과정 내에서 해볼 수 있을 것이다.

• 한국실내디자인학회논문집
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• 제19권2호
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• pp.197-205
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• 2010

This study examines for the processes of making a architectural significant issue of 20 cases form of Beijjng's hotel through analyzing the space composition from early the 1950's to 1992 in China. In the methods of analyzing process, We study the literatures, research reports and architectural drawings including the site survey. We hope to establish the principle in morphological characteristics and space composition of Beijing's high-rise hotels through analyzing the plan of these hotels. Finally, We find out the principles after researching. Firstly, Beijing's hotels in China faced on the being difficulties through the process of national development especially in political and economical conditions of country and peoples. Consequently, size of the Beijing's hotel developed with the fact that is complicated from that is single styles focused on the medium-sized one, modernizing popularity and the high-rise hotel buildings appeared plentifully and the form appeared with tall building putting first. Secondly, there are many immanent and interlocking styles in hotel's architectural block plans, many composition styles in big sized hotels, in opposition immanent styles in small sized ones and there are many trend of concourse style in medium sized hotels. To the layout of hotel's room inside of the linear styles are many in big and medium sized hotels.

• 한국농공학회지
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• 제41권6호
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• pp.54-63
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• 1999

Considering that rural village had evolved through a long-sustained effort of harmnization with nature, there should be the wisdom not only to reflect the level of rural resident's housing demand, but also to conserve the traditional characteristics of high-valuation in the modern rural housing. In Korea , standard design proposals of rural houses had been made public three times ; in 1972 , 1984 and 1995. so , firstly, this study analysed the inner-space layouts of design proposals mentioned above, from which changes and problems in the past housing design were derived. And also, through, the positive acceptance of residents' opinion living inthe houses built by standard design proposals in 1970 ~1980's, improved design principles and an alternative model were proposed , finally. The inner-space structed of standard design proposals in 1970s was originated from small-scaled and low-priced one, basically under the " open system". In 1980s, the basic design principle changed to the 'closed system' in which the living room being the focus of indoor family life, and , in 1990s, progressively, therural housing developed to the high qualified type by the spatial enlargement and with increased equipements. However, this structural change of rural house brought about the problem of functional separatioon between farming and daily living activities. In details, limited spaces of multipurpose spaces and sanitary facility would be mentioned as problems for improvement. conclusively in this study, newoly arranged "open system" was recommended , as a basic design principle for theinner space structure formation of rural house, which easily links the constituent inner-house spaces to outer one. Based on this principle, the detailed design criterial was proposed as follows ; 1. The living room be directly linked to the front-yard and centrally placed, the addtional space of which could be secured for the special family events by the flexibleuse of its adjacent room or by the housing of male quarters(separated from main building quarter). 2. The kitchen also be directly linked to side-yard and to livng room , for the convenience of farming activities and the shortening of path flow housewife. 3. The expanded toilet-and-bathroom be placed in the directly connected left-hand side to the living room and also be allowed access through multipurpose spaces to out door. 4. The multipurpose spaces be directly connected to the kitchen and the toilet and-bathroom , of which function would be for undressing of working clothes, quickwashing and ordinary working.nd ordinary working.