• 한국기계기술학회지
• /
• 제13권2호
• /
• pp.9-19
• /
• 2011

Most real world design evaluation and risk-based decision support combine quantitative and qualitative (linguistic) variables. Decision making based on conventional mathematics that combines qualitative and quantitative concepts always exhibit difficulty in modelling actual problems. The successful selection process for choosing a design/procurement proposal is based on a high degree of technical integrity, safety levels and low costs in construction, corrective measures, maintenance, operation, inspection and preventive measures. In this paper, a design decision support framework using a composite structure methodology grounded in approximate reasoning approach and evidential reasoning method is suggested for design evaluation of machinery space of a ship engine room at the initial stages. An illustrative example is used to demonstrate the application of the proposed framework.

• 한국디자인학회:학술대회논문집
• /
• 한국디자인학회 2003년도 가을학술발표대회
• /
• pp.122-123
• /
• 2003

• 한국항공우주학회지
• /
• 제37권7호
• /
• pp.685-692
• /
• 2009

본 논문에서는 회전익 비행체 개발과정에서 사용되는 다양한 해석데이터를 관리하기 위한 KHP - SDM 시스템 개발 및 회전익 비행체 개념설계를 위한 다분야통합 최적설계 프레임워크 개발에 관해 기술하였다. KHP-SDM 시스템 상에 개발된 다분야 해석 모듈을 통합하고 KHP-SDM의 최적화 모듈을 적용하여 KHP-SDM RMDO 프레임워크를 구축하였다. KHP-SDM RMDO 프레임워크를 이용한 회전익 비행체 개념설계 결과 프레임워크가 성공적으로 구성되었음을 보여주었다.

• 한국항공우주학회지
• /
• 제36권10호
• /
• pp.947-953
• /
• 2008

다분야 통합 최적설계(MDO) 프레임워크는 항공우주시스템의 설계에 고려해야 할 다양한 설계 분야의 통합적이고 동시적인 해석 및 설계 최적화를 위한 통합 환경으로 해석자원 및 최적화자원은 물론 CAD 툴과 DBMS 또한 통합해야하며 사용자편의환경을 제공해야한다. 또한 설계하고자 하는 대상 및 개발환경에 따라 프레임워크의 구축방법은 달라질 수 있다. 본 논문에서는 개발환경에 따라 단일 PC기반 프레임워크와 PLinda기반 프레임워크, 그리고 웹서비스 기반 프레임워크로 분류하여 이들을 비교 분석하였다.

• 공학교육연구
• /
• 제15권5호
• /
• pp.64-68
• /
• 2012

Design factors such as design objects establishment, analysis, synthesis, production, test and evaluation should be educated in a systematic way. Also design ability to reflect practical restrictive conditions such as industrial standards, economic feasibility, environmental impact, aesthetics, safety and reliability, ethical impacts and social impacts should be cultivated. In this paper, we explain the meaning of these terms and propose a systematic engineering design education framework satisfying Korean engineering education accreditation criteria. We also present a simple implementation in information network engineering.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
• /
• pp.497-502
• /
• 1992

In this paper, a new design technique called Task Based Design (TBD) is proposed to design an optimal robot manipulator for a given task. Optimal design of a manipulator is difficult because it involves implicit and highly nonlinear functions of many design variables for a complex task. TBD designs an optimal manipulator which performs a given task best, by using a framework called Progressive Design which decomposes the complexity of the task into three steps: kinematic design, planning and kinematic control. An example of TBD is presented to demonstrate the efficiency and effectiveness of our framework.

• International journal of advanced smart convergence
• /
• 제7권4호
• /
• pp.10-18
• /
• 2018

For the information services supporting requests of data items from a great number of mobile clients, wireless data broadcasting is an effective way because it can accommodate any number of clients. In the wireless data broadcasting, various air indexing schemes and data scheduling schemes have been developed in order to enable the clients to access their desired data items efficiently. The broadcasting system needs a method to simulate newly designed air indexing and scheduling schemes of the system, and to evaluate the performance parameters of the schemes. In this paper, we design an expandable and efficient simulation framework for the wireless data broadcasting based on the partition of data ID space. The framework can adopt regular and irregular space partition and evaluate various performance parameters of the broadcasting system. We implement a testbed of the broadcasting system using the framework, that adopts IIP, GDI and EXP as its air indexing schemes. We simulate the system using the testbed and evaluate the performance parameters of the system. Thus, we show the efficiency and expandability of the designed and implemented framework.

• 대한지구과학교육학회지
• /
• 제11권1호
• /
• pp.63-77
• /
• 2018

본 연구는 한국 STEAM 프로그램에 공학 설계(Engineering Design)가 얼마나 반영되었는지 분석한 것이다. Gusey et al. (2014)의 STEM 프로그램 분석도구를 바탕으로 41개의 STEAM 프로그램을 분석하는 예비 연구를 진행하였으며 그 결과를 바탕으로 한국 STEAM 프로그램의 특성에 맞게 유형을 분류할 수 있는 핵심 요소와 분석 도구를 제안하였다. 한국 STEAM 프로그램의 분석 요소는 Gusey et al. (2014)가 제안한 요소와 더불어 과학 탐구과정과 과학 내용과 관련된 5개의 요소들이 추가되었다. 본 연구에서 제안된 요소와 분석틀을 사용하여 76개의 프로그램을 분석한 결과 한국STEAM 프로그램은 공학설계 요소의 반영 비율이 낮고(28.5%) 과학 내용 중심적이며(62.3%) 완전한 공학 설계 과정이 반영된 프로그램은 5.8%에 불과했다.

• Computers and Concrete
• /
• 제6권6호
• /
• pp.491-503
• /
• 2009

This paper presents a design framework developed using axiomatic design (AD) theory that can be applied in the design process of porous concrete. The main contribution of this paper is the definition of an AD framework based on the needs and functional requirements of porous concrete. The framework shows how AD theory can be used to provide guidelines for proportioning and manufacturing porous concrete. The advantage of the AD approach is that it systemizes the way to decouple design parameters and makes designers to think rationally between what we want to achieve and how we propose to satisfy the functional requirements of porous concrete. In this paper, test results of laboratory-size porous concrete specimens under compression were analyzed to evaluate the performance of the porous concrete based on the desired functional requirements.

• 대한기계학회논문집A
• /
• 제29권3호
• /
• pp.403-410
• /
• 2005

This study presents the benchmark results of several design frameworks for the purpose of developing an efficient design framework in view of Excel interface. For the benchmark, three optimum design problems are chosen and solved by using the design frameworks. In order to compare the frameworks with each other, the evaluation criteria are specified and modified to fit the problems with Excel interface. Three example cases are solved and compared. The evaluation report is summarized in terms of efficiency, ease of use, internal structure, API, etc. However, the optimization result itself is not focused because the specific optimization algorithm is not our concern. Finally, some suggestions of how to develop an efficient design framework with Excel interface are presented.