• 제목/요약/키워드: engineering design

검색결과 61,032건 처리시간 0.066초

학생 설문을 통한 기초설계 교육효과 평가 (Estimation of the Effectiveness of Basic Engineering Design Education Through Student Survey)

  • 원윤재
    • 실천공학교육논문지
    • /
    • 제11권2호
    • /
    • pp.159-165
    • /
    • 2019
  • 공학교육인증제도 아래 기초설계-요소설계-종합설계의 3단계의 교육체계로 시행되고 있는 공학설계교육 중, 기초설계에 서는 설계 개념, 절차의 공학 입문자에의 소개와 동시에 종합설계에 연결하여 효과적으로 사용되도록 수학적인 상세 설계보다는 창의성이 발휘된 설계안을 창안, 평가하는데 중점을 두고 이를 팀 활동을 통해 연습시킨다. 본 연구에서는 기초설계를 수강하고 종합설계를 수행하고 있는 기계 분야 학생들의 의견을 설문을 통해 수집하여 효과적인 기초설계 교육이 이루어지고 있는지 알아보았다. 전반적으로 학생들이 기초설계 교육의 중요성을 높게 인식하며 유용도도 높다고 인식하고 있으며, 교과 내용별 중요도 및 유용도, 교육기반 및 환경, 종합설계와의 연계 필요성 등 기타 평가사항들이 앞서 있었던 기계 분야 교수들에 대한 설문 결과와도 상당히 일치하고 있다. 학생들과 교수들의 인식이 잘 공감되고 있으며 실제 종합설계시 팀 활동과 아이디어 창안 등이 잘 활용되고 있는 것으로 미루어 기초설계 교육이 효과적으로 이루어지고 있음을 확인할 수 있었다. 다만, 유용도가 중요도에 비해 약간 낮게 인식되는 점은 실습 과제를 흥미롭고 현실적인 것으로의 지속적 향상, 종합설계 초기에 기초설계 습득 내용이 응용되도록 유도하는 등의 유용도를 더 높이기 위한 방안과 노력이 필요하다는 것을 보여준다.

Design Re-engineering of the Lower Support Structure of the APR1400 Reactor Internals

  • Tung, Nguyen Anh;Namgung, Ihn
    • 시스템엔지니어링학술지
    • /
    • 제13권1호
    • /
    • pp.25-31
    • /
    • 2017
  • This paper aims to evaluate the conservatism in the design of APR1400 (Advanced Pressurized water Reactor 1400 designed by KHNP) reactor internals component, the LSS (Lower Support Structure). Re-engineering of the LSS is done based on the system design condition data and applicable ASME code that was used for the original APR1400 design. Systems engineering approach is applied to design the LSS of APR1400 without refering APR1400 LSS dimensional parameters and tries to verify important design parameters of APR1400 LSS as well as the validity of the re-engineering design process as independent verification method of reactor component design. Systems engineering approach applied in this study following V-model approach. The re-engineered LSS design showed more than enough conservatism for static loading case. The maximum deflection of LSS is under 1mm (calculated value is 0.25mm) from 4000 mm diameter of LSS. Hence the deflection can be ignored in other reactor internals for structural integrity assessment. Especially the effect of LSS deflection on fuel assembly can be minimized and which is one of the main requirements of LSS design. It also showed that the maximum stress intensity is 2.36MPa for the allowable stress intensity of 60.1 MPa. The stress resulted from the static load is also very small compared to the maximum allowable stress intensity, hence there is more than enough conservatism in the LSS design.

건설엔지니어링업체와 설계협력사간의 전략적 제휴방안 (A Strategic Cooperation Scheme Between Construction Engineering Firms and Design Subcontractors)

  • 김현준;박찬식
    • 한국건설관리학회:학술대회논문집
    • /
    • 한국건설관리학회 2002년도 학술대회지
    • /
    • pp.248-251
    • /
    • 2002
  • 국내 건설엔지니어링 업체가 새로운 사업모델을 개발하기 위해서는 엔지니어링 설계분야에 대한 확고한 기반 구축이 필요하며, 이는 설계협력사와의 협력관계 조성을 통해 가능하다. 이에 본 연구는 문헌 및 면담조사를 실시하여 설계협력사와의 협력관계 실태를 파악한 후, 건설엔지니어링 업체와 설계협력사간의 전략적 제휴방안을 제안하였다. 설계협력사와의 전략적 제휴는 경영${\cdot}$재무, 인력${\cdot}$기술, 관리제도 분야별로 시행단계, 발전단계, 전략적 제휴단계를 거쳐 이루어지도록 하였다.

  • PDF

VE 기법을 이용한 철도 설계관리에 관한 기초연구 (Basic Study on Electrified Railway Design Management using VE(Value Engineering) Techniques)

  • 조래혁;황성광
    • 한국철도학회:학술대회논문집
    • /
    • 한국철도학회 2005년도 춘계학술대회 논문집
    • /
    • pp.849-855
    • /
    • 2005
  • Railway fields are complicatedly connected with engineering such as physics, civil engineering, architecture engineering, electrical engineering (Telecommunication, signal, catenary, system), machine engineering and performance phase of project in domestic railway can be divided with four steps : planning, design, supervision, construction. Value Engineering is needed to reduce the cost of long period construction duration and periodically maintenance. Currently, railway design is difficult to act optimum design due to limited time, short of manpower, downsized of design company. therefore, VE concept in Design must require In order to solve this problem. it is called Design Management. This paper presents both item of design management and total design management tool of practical aspects, and describes LCC (Life Cycle Cost) analyze process and accomplishment process for applying VE concept

  • PDF

Axiomatic design study for automatic ship-to-ship mooring system for container operations in open sea

  • Kim, Yong Yook;Choi, Kook-Jin;Chung, Hyun;Lee, Phill-Seung
    • Ocean Systems Engineering
    • /
    • 제1권2호
    • /
    • pp.157-169
    • /
    • 2011
  • To provide more rational design solutions at conceptual design level, axiomatic design method has been applied to solve critical part of a new engineering problem called Mobile Harbor. In the implementation, the Mobile Harbor, a functional harbor system that consists of a vessel with container crane approaches to a container ship anchored in the open sea and establishes a secure mooring between the two vessels to carry out loading and unloading of containers. For this moving harbor system to be able to operate successfully, a reliable and safe strategy to moor and maintain constant distance between the two vessels in winds and waves is required. The design process of automatic ship-to-ship mooring system to satisfy the requirements of establishing and maintaining secure mooring has been managed using axiomatic design principles. Properly defining and disseminating Functional Requirements, clarifying interface requirements between its subsystems, and identifying potential conflict, i.e. functional coupling, at the earliest stage of design as much as possible are all part of what need to be managed in a system design project. In this paper, we discuss the automatic docking system design project under the umbrella of KAIST mobile harbor project to illustrate how the Axiomatic Design process can facilitate design projects for a large and complex engineering system. The solidified design is presented as a result.

Front End Engineering and Design (FEED) for Project Management of Thermal Power Plant Construction

  • KIM, Namjoon;JUNG, Youngsoo
    • 국제학술발표논문집
    • /
    • The 6th International Conference on Construction Engineering and Project Management
    • /
    • pp.415-419
    • /
    • 2015
  • Engineering is a value-adding process applying knowledge and skills in the construction industry that includes the planning, feasibility study, project management (PM), front end engineering and design (FEED), detail design, procurement, construction, supervision, and operation. Among these engineering activities, FEED is defined as a comprehensive design practice in the early design phase focused on conceptual design and basic design. It is a particularly influencing area that determines the competitiveness of procurement and construction capability of construction firms (KNIN 2013). Nevertheless, previous studies in FEED have been limited to the design process, deliverable, or particular management technique (e.g. system engineering, collaboration, information etc.). In this context, the purpose of this study is to propose a comprehensive FEED business process structure for project management of thermal power plant construction projects encompassing the entire project life cycle. And an assessment methodology for FEED functions was developed. It is expected that the proposed structure of FEED functions and FEED evaluation methodology will contribute to improvement of competitive capability of engineering, procurement, and construction (EPC) companies.

  • PDF

공학설계에서 인지적 팀 다양성, 공학설계 자기효능감 및 팀 창의성의 관계 (Relationships among Cognitive Team Diversity, Engineering Design Self-Efficacy, and Team Creativity in Engineering Design)

  • 안정호;임지영
    • 공학교육연구
    • /
    • 제18권6호
    • /
    • pp.11-17
    • /
    • 2015
  • This study examined the moderating effect of engineering design self-efficacy on the relationship between cognitive team diversity and team creativity. For this study, 377 mechanical engineering students in engineering design classes were included in the analysis. The results showed that both cognitive team diversity and engineering design self-efficacy were positively correlated with team creativity. The analysis of moderating effect indicated that engineering design self-efficacy further reinforced the positive relationship between cognitive team diversity and team creativity. Finally, implications and limitations of this study were explored.