• 대한기계학회:학술대회논문집
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• 대한기계학회 2003년도 추계학술대회
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• pp.1763-1768
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• 2003

Current trend of design technologies shows engineers to objectify or automate the given decision-making process. The numerical optimization is an example of such technologies. However, in numerical optimization, the uncertainties are uncontrollable to efficiently objectify or automate the process. To better manage these uncertainties, Taguchi method, reliability-based optimization and robust optimization are being used. Based on the independence axiom of axiomatic design theory that illustrates the relationship between desired specifications and design parameters, the designs can be classified into three types: uncoupled, decoupled and coupled. To best approach the target performance with the maximum robustness is one of the main functional requirements of a mechanical system. Most engineering designs are pertaining to either coupled or decoupled ones, but these designs cannot currently accomplish a real robustness thus a trade-off between performance and robustness has to be made. In this research, the game theory will be applied to optimize the trade-off.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2002년도 춘계학술대회 논문집
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• pp.201-204
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• 2002

Kansei design knowledge acquisition stage is a crucial stage in kansei designing process and kansei engineering (KE) methodology. In kansei engineering methodology, it is essential to extract design knowledge or rules on relationships between customer's kansei and product design element. We attempt to construct a more powerful melted for extracting the design rules from kansei expremental data. We constucted a kansei experiment concerning color kansei evaluation, and analyzed the sane data by both conventional quantification theory type I and rough set theory. Finally, we compared the effectiveness of both methods for extracting rules and examined the extensions of rough set theory in kansei engineering.

• 한국유체기계학회 논문집
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• 제2권1호
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• pp.22-28
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• 1999

In this study, a preliminary design method of the axial fan was systematically established based on the two-dimensional cascade theory. Flow deviation, lift coefficient, distribution of velocity and pressure coefficient on blade surfaces were predicted by an inviscid flow theory of Martensen method, which was also applied to select an airfoil for required performance in the present design process. The aerodynamic performance of designed blades can be predicted quickly and reasonably by using the through-flow calculation method in the preliminary design process. It would be recommendable to adopt three-dimensional viscous flow calculation at the final design refinement stage.

• International Journal of Advanced Culture Technology
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• 제9권1호
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• pp.121-128
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• 2021

In this study, we aim to suggest direction for landscape design of residential complex in Korea by studying target areas to understand how landscape urbanism was applied to residential landscape design as it is the majority of landscape design in Korea and by closely examining design elements to be considered for design of residential complex based on landscape urbanism theory. For the purpose of the study, some of public multifamily housing complex were selected as target areas and a survey was first conducted to understand how landscape urbanism was applied to design of these target areas. Then, by analyzing the survey results, we identified which elements were of importance to designing of multifamily housing complexes in Korea and how practical design of landscape urbanism works. From this study, we concluded that landscape urbanism theory is not just about design strategies, but more of comprehensive design methodology covering both operation and management and that such theory can be appropriately applied to design of multi-housing complexes in Korea. We also discovered that in order to apply landscape urbanism in design stage for multi-housing complex, selecting which design strategy/words in the previous study is not what's important, but comprehensive understanding and interpretation of design languages is key.

• 대한건축학회논문집:계획계
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• 제35권10호
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• pp.31-39
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• 2019

This research analyzes the involvement of hermeneutics in architectural history and theory studies and its pedagogy in the West after the 1950s. The research focuses on representative architectural schools in the West. In particular, this paper examines from the curricula of Joseph Rykwert and Dalibor Vesely at the University of Essex to their former students who played a significant role in expanding the history and theory courses in the late 20th century in the North America such as Alberto $P{\acute{e}}rez-G{\acute{o}}mez^{\prime}s$ (McGill University) and David Leatherbarrow (University of Pennsylvania). Through their leadership and other related architectural historians' efforts: 1) hermeneutics have been applied in architectural history studies from the critical perspectives of post-modern philosophy; 2) hermeneutics help stimulate discussions of thoughtful architectural design, enabling strong interactions between design theories and the embodied meanings of buildings; 3) these schools have produced and involved many prominent scholars who actively practice and develop the discourse of architectural history and theory from the perspectives of hermeneutics; 4) Finally, the hermeneutic approach in architectural history studies has enlightened many achieved architects' thoughtful design practice and theories within the emerging context of regional criticism and international cross-cultural architecture.

• 대한산업공학회지
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• 제29권3호
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• pp.230-238
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• 2003

The configuration design of a mechanical product can be efficiently performed when it is based on the functional modeling. There are methodologies, which decompose function from the abstract level to the concrete level and match the functions to physical parts. But it is difficult to carry out an innovative design when the function is matched only to a pre-detined part. This paper describes the configuration design process of a mechanical product with a design expert system, which uses function taxonomy and TRIZ theory. The expert system can propose a functional modeling of a new part. which is not in the existing parts list. The abstraction levels of design knowledge are introduced, which describe the operation of mechanical product in the levels of abstraction. This is the theoretical background of using knowledge of function and TRIZ for configuration design. The expert system is adequate to control this design knowledge. which expresses knowledge of functional modeling, mapping rules between functions and parts, selection of parts, and TRIZ theory. The hierarchy of functions and machine parts are properly expressed by classes and objects in the expert system. A design expert system has been implemented for the configuration design of a train bogie, and a new brake system of the bogie is introduced with the aid of TRIZ's 30 function groups.

• 한국조경학회지
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• 제37권6호
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• pp.85-95
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• 2010

근대이전 동아시아의 상류사회는 시서화 삼위일체의 통합체제를 유지해왔고 이에 따라 정원조성의 원리 또한 산수화의 작화원리를 참조하며 발전해 왔다. 본 연구는 중국의 산수화론과 원림론을 비교, 양자 간의 상호관계를 검토함으로써 동양그림의 경관관이 원림의 작정원리에 미친 영향을 고찰하고자 하였다. 양자 간의 비교는 내용과 형식의 양 측면에서 이루어졌다. 여기서 내용은 주로 가치와 의미 등 비가시적 측면을 말하고, 형식은 주로 시각과 공간 등 가시적 측면을 말한다. 먼저 산수화론에 있어 내용면의 주요 주제는 무엇보다도 '기운생동(氣韻生動)'이었다. 이는 음양사상을 기반으로한 동양문화 고유의 가치인데, 남조의 사혁이 이론화한 것이다. 이에 대응하는 원림론의 주요 주제는 '풍수(風水)'와 '의경(意境)'이었다. 풍수 역시 음양사상을 기반으로 한 지기(地氣)의 원리이고, '의경'이란 시서화 공동의 가치로서 마음의 경지를 의미하는데, 특히 원림론에서는 가시적 경관 이면의 상징적 의미를 말하고 있다. 형식면에서 산수화론의 두드러진 주제는 북송조 곽희에 의해 정립된 '삼원법(三遠法)'이라는 일종의 동양화의 투시도법으로 다원적 조망을 특징으로 한다. 이에 대응하는 원림론의 주제는 '인지(因地)'와 '차경(借景)'으로 명조의 계성이 이론화하였으며, 각각 대상지 내외부 경관자원의 조성과 차용을 의미한다. 특히 차경의 세목들은 삼원법의 각 관점에 대응하고 있다. 결론적으로 동아시아 원림론에 등장하는 주요 개념들은 화론과 매우 긴밀하게 연관되어 있었으며 이로서 원림술은 예술의 한 분야로 인정받아 왔다.

• Earthquakes and Structures
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• 제1권1호
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• pp.1-19
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• 2010

It has been known that one-dimensional rod theory is very effective as a simplified analytical approach to large scale or complicated structures such as high-rise buildings, in preliminary design stages. It replaces an original structure by a one-dimensional rod which has an equivalent stiffness in terms of global properties. If the structure is composed of distinct constituents of different stiffness such as coupled walls with opening, structural behavior is significantly governed by the local variation of stiffness. This paper proposes an extended version of the rod theory which accounts for the two-dimensional local variation of structural stiffness; viz, variation in the transverse direction as well as longitudinal stiffness distribution. The governing equation for the two-dimensional rod theory is formulated from Hamilton's principle by making use of a displacement function which satisfies continuity conditions across the boundary between the distinct structural components in the transverse direction. Validity of the proposed theory is confirmed by comparison with numerical results of computational tools in the cases of static, free vibration and forced vibration problems for various structures.

• 디자인학연구
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• 제13권1호
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• pp.131-138
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• 2000

디자인된 결과가 얼마나 만족스럽게 디자인되었는지에 대한 평가는 디자인과정에 있어 필수적인 단계이다. 하지만 디자인 평가는 다른 부분에 비해 무시되어 온 측면이 있고, 또한 보통 디자이너의 주관적인 판단에 의하여 이루어졌기 때문에, 체계적인 방법론의 개발에 있어서는 별다른 관심을 얻지 못하였다. 본 연구에서는 퍼지이론과 다기준의사결정모델을 적용한 디자인 평가방법을 제안하였다. 제안된 방법은 두 개의 단계로 구성되어지는데, 첫 번째 단계는 디자인 평가기준의 상대적 중요도를 구하는 단계이고, 두 번째 단계는 각 기준에 대한 디자인 점수를 부여하고 그 점수를 통합하는 단계이다. 디자인 평가기준들의 상대적 중요도를 나타내는 가중치를 구하기 위하여 분석계층과정이 적용되었고, 각 기준들에 대한 제품의 디자인 점수를 구하기 위해서는 퍼지이론이 적용되었다. 본 연구에서 제안된 방법을 제품의 디자인 평가에 효과적으로 활용될 수 있음을 확인하였다.

• 디자인학연구
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• 제20권
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• pp.173-182
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• 1997

이 시대에 국경 없는 글로벌 시장(Global Market)의 무한경쟁시대 직면해 있음을 인식한 국내의 유수한 기업들이 과거 내수시장을 탈피하여 국제화를 지향하기 위한 글로벌 경영을 선언하고 초일류 제품디자인 개발을 시도하고 있다. 이 같은 현상은 글로벌 화된 제품디자인을 통해 마켓쉐어(Market Share)를 상승시키는데 그 중요성에 대한 인식이 커지고 있음을 반영한 것이다. 따라서 본 연구는 글로벌 제품디자인 개발의 접근을 인류문화의 기호론(嗜好論)과 디자인 측면에서 재해석하고, 또 인류 모두가 좋아하는 공통적 기호(嗜好)를 유추 또는 수용하여 접근할 수 있는 방법을 제시하는데 목표를 두었다. 글로벌 제품디자인 접근의 구성요소인 디자인과 커뮤니케이션 관계에서 기호론 적 표현컨셉트와 아이디어를 전개하는 방법을 합리적으로 체계화 하고자 하였다. 이를 위해 기호론 적 문헌 연구를 토대로 디자인 접근방법을 디자인 프로세스에서 적용시키면서 사용자와 디자인, 기업 이념과 기호론 적 표현에서 의사전달(Communication) 접근방식을 제시하였다. 그리고 우리의 전통문화에서 형태적 아이디어를 발췌하여 접근하는 가운데 화장품 용기디자인을 사례로 하였다.