• 과학과기술
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• 9호통권448호
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• pp.16-19
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• 2006

서남표(70) 전 MIT 석좌교수가 한국을 떠난 지 52년 만에 제13대 KAIST 총장이 돼 돌아왔다. 1990년대 미국 미시간대 총장, KAIST 총장을 고사했던 그가 이제 마음을 바꿔 로버트 러플린 후임으로 오게 된 것이다. 그는 재외 한국인 과학자 중 학문적으로 일가를 이룬 사람으로 꼽힌다. 고객의 요구를 만족시키는 최적의 설계 이론인 ‘공리적 설계’를 창안하기도 해 세계적으로 바람을 일으키기도 했다. 학생들한테는 눈물이 날 정도로 엄하게 훈육했으며, 130년 전통의 MIT 기계과를 혁신한 것으로도 유명하다. 그를 만나 그의 인생 역정과 철학, KAIST에 대한 비전을 들어봤다.

• 한국정밀공학회지
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• 제23권5호
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• pp.119-127
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• 2006

Design structure of a mobile phone has been changed to a converged style, which has so many functions. However, the converged mobile phone could not satisfy the users who want to use only specific functions, so with Axiomatic Design, we have studied for making a proposal to set up the new concept. The goal of this study is to derive a general solution with Axiomatic Design to verify the Independence. By enhancing the existing design model and differentiating the function of mobile phone, user will be able to choose desirable products, which have only specific functions and/or specific parts. First of all, we checked the Independence about the existing design model. Then, we developed the new design model with the idea that base mobile phone should have basic functions and additional functions can be separated, surely be connected when users want.

• 한국정밀공학회지
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• 제18권3호
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• pp.122-130
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• 2001

Axiomatic Design is the useful tool for making a good design. In Axiomatic design, the independency is an important property to determine whether the design is good. Until now many designers decide the independency between FRs by their own decision. The way depending on inspiration is simple and fast, but it can not be considered as precise conclusion. Also there are not exact rule that evaluate the quantitative independency between FRs. This thesis will show the way to evaluated the quantitative independency of FRs from the comparison between FRs of more lower levels, and develop more efficient and objective tool in Axiomatic Design.

• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 2005년도 제26회 동계학술발표회 논문집
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• pp.3-21
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• 2005

기업은 경쟁력 강화를 위해 지속적으로 프로젝트에 자원을 투자해야 하지만 기업의 물리적, 재정적 제약으로 인해 제안된 모든 프로젝트에 자원을 투자할 수가 없다. 따라서 기업의 장기적인 생존을 위해서는 프로젝트 포트폴리오의 최적선정이 필수적 과제이다. 이러한 중요성에 대한 인식으로 현재까지 많은 프로젝트포트폴리오 선정 방법들이 개발되었으나, 프로젝트 포트폴리오 선정을 지원하는 통합화된 프레임워크의 설계에 대한 연구는 미약한 실정이다. 본 연구는 최적 프로젝트 포트폴리오를 선정하기 위한 프레임워크를 설계하는 것으로서 프로젝트 포트폴리오 선정을 위한 설계방법론, 기존 프로젝트 포트폴리오 선정 프레임워크에 대한 분석 및 새로운 프로젝트 포트폴리오 선정 프레임워크의 설계에 대해 서술한다.

• 대한기계학회논문집A
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• 제27권6호
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• pp.1020-1027
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• 2003

A traditional mold design has been conducted by an experience-based trial and error, whereby the mold designer would decide the gate locations and processing conditions based on the caring characteristics and its functional requirements. The paper suggests an optimal gate location and processing conditions in the injection molding using a global search method referred to as micro genetic algorithm( ${\mu}$ GA). ${\mu}$ GA yields the optimal solution with a small size of population without respect to design variables for saving time that is needed to calculate the fitness of many individuals. Due to the reason, the paper uses a commercial analysis package of injection molding(CAPA) to analysis a state of flux. In addition to that, axiomatic approach .is applied in the beginning of design. It is a useful method to draw a well-organized and reasonable idea to handle a problem.

• 한국자동차공학회논문집
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• 제7권6호
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• pp.106-114
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• 1999

Today, one of the most important objective in automobile development is to reduce the weight of automobile . The eventual depletion of petroleum and environmental regulations brought considerable emphasis to this area on increasing fuel efficiency. Conventional intake air-fuel system is very heavy because it is composed of numerous parts. The bulky size caused increase in the amount of metal being used to build automobile chassis and this became a serious weight problem. The size also caused difficulties in optimization of fuel supply system which in turn decreased engine efficiency. Currently , there are efforts to integrate several intake system modules into one. The purpose of this paper is to evaluate the directions of such development.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.561-564
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• 2005

The quality of a rotating body such as a washing machine depends on the vibration characteristics. So, the researches to reduce the vibration of a washing machine are actively performing, but it is very difficult to conduct these experiments because there are many design parameters affecting the vibration behavior. Accordingly, in this study it was complete to build a modeling of a drum washing mashing to analyze and predict vibration behaviors. The design parameters which affect the vibration were found, and the method for the systematic analysis of the design parameters was suggested using axiomatic design. In the previous study, the effect of the gasket has not considered on vibration behaviors, but in this study it was considered. The simulation results showed good agreements with the experimental results in the vibration displacement and the vibration tendency of a drum washing machine.

• 대한기계학회논문집A
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• 제31권1호
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• pp.62-69
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• 2007

Micromanipulator is a device that manipulates an object with high precision. Generally, a parallel-type robot has inherently higher precision than a serial-type robot. In most cases, the use of flexure hinge mechanisms is the most appropriate approach to micromanipulators. The micromanipulator is basically required that have high natural frequency and sufficient workspace. However, previous designs are hard to satisfy the required workspace and natural frequency, simultaneously, because the previous micromanipulators are coupled designs. Therefore, this paper suggests a new design parameter as displacement amplifier and new design procedure based on semi-coupled design in axiomatic design. As a consequence the spatial 3-DOF micromanipulator which is chosen as an exemplary device has natural frequency of 500Hz and workspace of $-0.5^{\circ}{\sim}0.5^{\circ}$. To investigate the effectiveness of the displacement amplifier, simulation and experiment are performed.

• 대한기계학회논문집A
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• 제31권1호
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• pp.77-88
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• 2007

Axiomatic Design has been developed as a general design framework during past two decades and TRIZ has been developed for a design tool over 50 years. Axiomatic design is quite excellent in that design should be decoupled. When a design matrix is established, the characteristics of the design are identified according to the coupling properties. If the design is coupled, a decoupling process should be found. However, axiomatic design does not specifically indicate how to decouple a coupled design. In this research, the coupling manner is classified into six patterns. Each pattern could be solved by an appropriate TRIZ module. A table, which matches the coupling pattern and a TRIZ module, is proposed for effective application of the two design theories. The decoupling ideas are proposed by using TRIZ modules. When the number of decoupled designs is more than one, the engineer should select the final idea. The proposed method is applied to practical cases such as a tape feeder and a beam adjuster of the laser marker.

• 한국정밀공학회지
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• 제22권6호
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• pp.183-191
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• 2005

Axiomatic design offers a scientific base for design in an efficient way. It is well known that it has two axioms: the Independence Axiom and the Information Axiom. Many applications of the Independence Axiom have been published, however, the Information Axiom has been mainly applied to IFR (functional requirement) - 1DP (design parameter) problems except fer a few case studies. This research presents various methods for calculation of information content. Generally, the information content is evaluated by the probability of success. The probability of success is calculated in two ranges: the FR range and the DP range. In the FR range, the graphical method is utilized with uniform distribution of the DP. In the FP range, the integration method is employed. It is noted that any distribution function of the DP can be accommodated in the integration method. The developed method can be applied to a decoupled design with multiple FRs and DPs. The developed method is extended to a coupled design and a design with a hierarchical structure of axiomatic design.