Research Subjects

  -Design of CSS(Composite-Smart-Structures with high electrical and structural performances

  -Wideband Circular-Polarized CSS

  -Investigation of Changes of Antenna Performances by Deformation of CSS

  -Structural Analysis of Multilayer Sandwich Structures

  -Active Phased Array CSS

 

Figure 1. Concept of Composite-Smart-Structures

 

Research Backgrounds
TRIZ
Inventive problems are accompanied by phrases such as : “It can’t be done,” “It is physically impossible,” and the old engineering and scientific standby : “it is against the laws of physics.”. Inventive opportunities are all around us; it is only a matter of learning how to see them. This, coupled with a systematic approach to resolve inventive problems, literally changes the way we think about problems.

If we reduce psychological inertia and therefore have a greater opportunity to find a better solution. model requires completion and offers directions for innovative thinking. Psychological inertia is the tendency that humans have to move in a direction of comfort and security. This is not always the direction of the best solution

Concept of ideality is "Think of the end before the beginning". By defining and attacking the envisioned ‘Ideal Final Result(IFR)’ , we enable to choose the most promising direction Ideality is represented by a vector with the area in proximity to the vector representing the area of high level solutions.

The ideal solution for a company is the one that takes into consideration the availability of resources and local(company) limitations. If the solution is toward the minimization of cost factors, then that will have the higher local(company) ideality. Application of technological system’s resources is one of the primary ways of increasing a system’s ideality.
One example is introduced in the following section. We have to Evaluate the degradation of a specimen exposed to a strong acid over a long time. In testing, the specimen in the container is also degrading that will affect the accuracy of the test. The typical solution is adding protective coating, but it requires a delay in time and adds cost. We need a simpler solution.

An ideal solution is One that does not involve require a container, and the solution should be implemented with the most basic of tools.

The specimen is modified so that it is the container.
This solution meets the local ideality requirement by being easy to implement, as easy as drilling a hole, and by avoiding the time delays and cost associated with replacement of the container or coating.



There are two ways to approach new innovative designs. Find the tools, mechanisms and devices to make it work ( create a more complicated system) Deny introduction of new tools mechanisms and devices ( create a simple, more ideal system). Desirable Objective of defining and pursuing ideality is achieving long-term benefits as a result of visualization of the optimum solution. The more original a discovery, the more obvious it seems afterward.

A situation in which a characteristic of a system must exist in two states. This situation is a subset of a technical contradiction. Physical contradiction is located on the ideal final result vector. Physical contradiction must be in two opposing states. No compromise or trade-off is allowed. To convert from a technical contradiction to a physical contradiction, you must determine what characteristic is controlling the technical contradiction condition.
There are 39 technological contradictions, and 40 Typical Techniques is used for Overcoming those contradictions. It contains attributes that are the most common for all technological system. These attributes are arranged in rows and columns. Suppose there is a need to improve some attribute of the system. If this improvements causes deterioration of another attribute, an intersection of the row and column corresponding to the conflicting attributes will show the useful principles.

A technological system involve at least three components: a tool, an article, and an energy source. These components are described in TRIZ in terms of substances and fields. Substance is a technological system of a various degree of complexity, for instance, nail, keyboard, or ship. Field is Energy needed for interaction, for example, mechanical, thermal, electromagnetic, and chemical force and so on. The following is an example of solving problem using Su-Field analysis.

신동식, 김진율, 박위상, 황운봉
복합 구조 이중대역 안테나의 충격 및 굽힘 특성
한국인터넷방송통신학회 논문지, 2011-02, Vol. 11, No. 2, pp. 35~ 40

이상민, 조상현, 이창우, 황운봉
원통형 복합재료 안테나의 설계 및 충격실험에 관한 연구
한국복합재료 학회지, 2009-06, Vol. 22, No. 3, pp. 55~ 59

손성호, 황운봉
위상배열 응용을 위한 스마트 스킨 안테나 설계 및 제작
한국복합재료학회지, 2007, Vol. 20, No. 3, pp. 25~ 30

김동섭, 황운봉, 박현철, 박위상
접착필름의 영향을 고려한 다층 복합재료 안테나 구조 설계
한국복합재료학회지, 2007, Vol. 20, No. 2, pp. 27~ 31

김동현, 황운봉, 박현철, 이건홍
나노허니컴 구조물을 이용한 산업용 극소수성 표면 제작
한국복합재료학회지, 2007, Vol. 20, No. 2, pp. 17~ 20

전지훈, 최덕현, 이평수, 이건홍, 박현철, 황운봉
나노허니컴 구조물의 인장 및 굽힘 물성 측정
한국복합재료 학회지, 2006, Vol. 19, No. 6, pp. 23~ 31

김동현, 황운봉, 박현철, 박위상
복합재료 표면안테나 구조의 굽힘 피로특성연구
한국복합재료학회지, 2004, Vol. 17, No. 6, pp. 22~ 27

최덕현, 황운봉, 윤의성
원자현미경에서 마찰력 측정의 정량적 방법
대한기계학회논문집 A권, 2004, Vol. 28, No. 12, pp. 1906~ 1913

최덕현, 황운봉
원자현미경을 이용한 접촉 면적에 따른 마찰 및 마멸 특성 분석
한국정밀공학회, 2004, Vol. 21, No. 12, pp. 167~ 173

최덕현, 황운봉
공리적 설계 이론 향상을 위한 제언
대한기계학회논문집 A권, 2004, Vol. 28, No. 7, pp. 970~ 976

박진영, 황운봉
메쉬 특성에 따른 물방울 투과도 변화에 대한 연구
한국정밀공학회, 2018.06, Vol. 35, No. 6, pp. 0~ 0

곽원식, 황운봉
양극산화와 자기 조립 단분자막 코팅 공법을 이용한 아연 기반의 극소유성 표면 제작기술
한국정밀공학회, 2018.05, Vol. 35, No. 5, pp. 0~ 0

박병락, 황운봉
연마가공과 자기조립단분자막 코팅 기반 다종 금속의 극소수성 표면 제작기술
한국정밀공학회, 2018.02, Vol. 35, No. 2, pp. 0~ 0

곽원식, 김기환, 조한동, 황운봉
티올 코팅 시간이 구리 나노와이어 형상 및 젖음성에 미치는 영향
한국정밀공학회, 2018.04, Vol. 35, No. 4, pp. 0~ 0