• 한국항공우주학회지
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• 제34권1호
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• pp.42-48
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• 2006

연구에서는 다분야 통합 최적설계를 위한 시스템 근사화 기법으로 RRSET (Repetitive Response Surface Enhancement Technique)를 제안하였다. 2차 다항식만으로는 어려운 반응면의 표현을 위해 RRSET는 설계공간을 변형할 수 있는 스트레칭 함수를 도입하고 전역 최적화 알고리즘인 담금질 모사기법을 이용하여 반응면을 최적화 하였다. 도출된 최적점은 반복적으로 다음 순기의 반응면의 구성에 이용하여 반응면의 신뢰도를 더욱 높일 수 있었다. 제안된 기법을 수치예제 등에 적용한 결과, 비교적 적은 수의 실험 회수로 비선형적인 반응면을 잘 표현하고 최적 설계점을 도출해낼 수 있음이 확인되었다. 정밀한 근사화 기법의 중요성이 강화되고 있는 현재, 본 연구에서 제시된 근사화 기법은 차후의 연구에서 다분야 통합 최적화 기법에의 적용이 가능하리라 사료된다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1307-1312
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• 2009

Design is an act based on multidisciplinary information. The involvement of various stakeholders makes it difficult to process, plan, and integrate. Iteration is frequent in most of the engineering design and development projects including construction. Design iterations cause rework, and extra efforts are required to get the optimal sequence and to manage the projects. The simple project management techniques are insufficient to fulfill the requirements of integrated design. This paper entails two things: design structure matrix and design parameters' information based model. The emphasis has been given to optimal sequence and crucial iteration using design structure matrix analysis technique. The design projects have been studied using survey data from industry. The optimal sequence and crucial iterations results have been utilized for proposed model. Model integrates two things: information about produced- required key design parameters and information of design changes during the design process. It will help to get familiar with Design management in order to fulfill contemporary needs.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.544-548
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• 2015

As urbanization increases in UAE, the demand for housing and infrastructures also grows. The challenge is to continue to build but in a different way considering more energy-efficient sustainable buildings. Producing a sustainable design is highly dependent upon effective participation among the diverse parties involved. In the construction industry in the UAE, these parties are fragmented due to the multistage nature of construction projects and multidisciplinary participants, particularly during the design stage. The decisions made during this stage have an extensive impact on subsequent stages of a project's life cycle. Having a sustainability expert during the design stage is important and the awareness of sustainability requirements by all design participants is of equal importance. In this research, recent advances in information technology are used to develop an information model that will improve the sustainability of building during the design stage. An information framework for storing design information and sustainability performance criteria is developed, allowing design participants to collaborate in an integrated environment. This research is expected to help designers produce sustainable designs for building projects.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2006년도 정기 학술대회 논문집
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• pp.307-314
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• 2006

Missile system. which requires high speed/high maneuverability is getting more important as a defensive weapon system. Integrated design environment which includes all related resources during the missile development process, is a very useful development tool, Therefor the design framework can perform the operation analysis and utilize design information for the efficient missile design. For this purpose, various analysis computer codes under heterogeneous platforms and operating systems, the database, the optimization module, and Ideas a commercial CAD are integrated using distributed. middleware. and the complicated GUI design has been made for the specific missile system design. Under the various constraint, maximize missile range and loadfactor with missile design computer framework.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2005년도 추계학술대회 논문집
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• pp.362-369
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• 2005

In this paper, a research for the knowledge based configuration design software development of a train vehicle has been presented. Parametric design and knowledge based design concepts have been introduced for rapid design changes and analyses using a commercial CAD software, $CATIA^{/circledR}$ Knowledgeware module. Positions and dimensions of door, small window, large window, and number of seats were used as design parameters. It is crucial for train vehicle design because it enables rapid conceptual design by instant configuration changes. The results of this research can be used as one sub module of the multidisciplinary train vehicle design software and provide a basic data for rolling stock behavior and driver cab ergonomics of a train vehicle.

• 공학교육연구
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• 제24권3호
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• pp.3-10
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• 2021

The purpose of this study was to explore the theory behind creative engineering design instructional characteristics. This study was conducted as a literature review to derive engineering design instructional characteristics. The results showed that there are three primary characteristics: learner-centered instructional activities, collaborative communication interactions, and multidisciplinary convergence to promote creative thinking. This study was meaningful in that it identified creative engineering design instructional characteristics based theoretical considerations of engineering design and engineering design education. Therefore, it is expected that the results of this study will contribute to the development of creative engineering design instructional models.

• 한국항공우주학회지
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• 제34권10호
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• pp.80-91
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• 2006

위성공학을 전공하는 학생들에게 실질적이고 경험적인 교육을 제공하기 위해 HAUSAT-1과 HAUSAT-2 두 초소형 위성 개발 프로젝트 기반의 다학제간 우주비행체 설계 교육방법을 적용하였다. HAUSAT-1은 국내최초로 개발된 1 kg급의 초소형 피코 위성이다. HAUSAT-2는 25 kg급의 나노 위성으로 현재 준비행 모델(Proto-Flight Model)을 개발 중에 있다. 이들 설계 프로젝트는 연구와 설계 교육의 통합적 기능을 제공함으로써 대학의 고유기능인 과학 및 기술 연구와 설계 교육을 통한 전문 인력양성의 목표를 동시에 이루는 것이 가능하다. 이러한 복합시스템인 우주비행체 설계 교육을 통하여 참여 학생 전원이 우주비행체의 전 시스템 개발 과정을 직간접적으로 경험할 수 있게 하고, 최근 들어 각광을 받고 있는 다학제간 시스템 교육의 활성화를 이룰 수 있다.

• 한국항공우주학회지
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• 제38권7호
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• pp.716-726
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• 2010

본 연구에서는 공기역학과 비선형 구조해석을 통합한 다분야 최적설계 최적화(MDO)프레임웍을 사용하여 항공기 날개의 설계를 수행하였다. MDO 문제 중 해결해야할 가장 큰 문제인 자동화를 해결하여 전 과정이 자동화되게 하였다. 공력해석은 FLUENT를 사용하였으며 이를 위한 격자는 CATIA의 파라미터 모델과 Gambit을 사용하여 자동으로 생성되도록 하였다. 전산구조해석을 위한 격자는 CATIA의 파라미터 모델과 NASTRAN- FX의 비주얼 베이직 스크립트를 사용하여 자동으로 생성되도록 하였다. 구조해석은 비선형성을 고려하여 ABAQUS를 사용하였다. 최적화 방법은 전역해를 구하기 유리한 반응표면법을 사용하였다. 목적함수는 날개 무게의 최소화이고 제약 조건은 양항비, 날개의 변위 그리고 구조응력량으로 정하였다. 그리고 설계변수는 가로세로비, 테이퍼비, 후퇴각 그리고 상하스킨의 두께로 정의하였다. 최적화 설계결과는 본 자동화 MDO프레임웍이 성공적으로 구성되었음을 보여주었다.

• 한국해양공학회:학술대회논문집
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• 한국해양공학회 2004년도 학술대회지
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• pp.85-89
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• 2004

The paper presents a summary of the multidisciplinary/optimization method for the preliminary design of container feeder vessel. The current scenario in the ship building industry highly focuses on container ship design and construction proving the inherent demand in maritime industry. The design accomplishes the outer circle of the design spiral giving stress in areas of Hull Form Design, Resistance & Propulsion. Empirical relations, model test results, data from built ships, class rules and latest market demands stood as the criteria for the design. Optimization of the design as per the owners requirement. class rules, and the trade route selected are the major challenges met with. Strength. reliability, structural safety and stability have been incorporated in compromising standards.

• Architectural research
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• 제13권2호
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• pp.3-12
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• 2011

Planning information generated during initial architectural design phases significantly influences subsequent phases, and is implemented into architectural design models during the design process. However, failures to manage and use planning information in Korean design offices remain common. Current design tools that incorporate planning information also do not address the issue of interoperability during the life cycles of buildings. To address these problems, the Industry Foundation Classes (IFC) extension model was developed to accommodate the need to manage and use planning information for cooperation between design offices carrying out multidisciplinary tasks. This paper introduces a purpose-built software tool that implements the IFC model and demonstrates the efficiency of the proposed method with the software tool.