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스테인리스 각형강관과 일반구조용 각형강관 기둥의 내력비교에 관한 실험적 연구
장호주(Jang Ho-Ju),서성연(Seo Seong-Yeon),양영성(Yang Young-Sung) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.6
Stainless steel, which has corrosion resistance, fire resistance efficiency and elongation is superior to carbon steel.<br/> This study presents centrally loaded experiments on cold-formed stainless steel pipe columns. And attempts to experiment for the<br/> use of these stainless steel columns as structural compression members. An important part of the study is to investigate<br/> experimentally the comparison on the experiments of stainless steel and carbon steel square hollow section columns. The paper<br/> presents compressed experiments on stainless steel and carbon steel square hollow section columns, including stub column tests and<br/> coupon tests. On the column experiments, a total 24 column experiments are conducted, the slenderness ratios( λ=20, 30, 40, 50, 60,<br/> 70) as parameter. The experimental results were compared with the multiple column curves, ECCS and SSRC.<br/> Test result showed that stainless steel pipe columns could be predicted superior to strength and plastic deformation. And that can<br/> be applied to structural member with many benefits. But it requires reasonable code for the stainless steel as more experiments and<br/> study in the future, according to it leaves much room for improvement, a low yield strength(Fy=205N/㎟) of Korean Standards, a<br/> high cost, the not established design code, etc.
외전형 영구자석 풍력발전기의 부하 조건에 따른 효율 특성 해석 및 실험적 검증
장석명(Seok-Myeong Jang),김진순(Jin-Soon Kim),고경진(Kyoung-Jin Ko),최장영(Jang-Young Choi),이성호(Sung-Ho Lee),윤기갑(Gi-Gap Yoon) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
This paper deals with efficiency characteristics analysis of wind power generator with outer permanent magnet rotor according to load condition. The analyzed results are compared with experimental results, and it demonstrates the validity of the proposed analysis method. From the derived analysis results, this paper suggests the necessity of performance analysis considering load conditions for the initial design of PM generator.
스테인리스 원형강관과 일반구조용 원형강관 기둥의 내력비교에 관한 실험적 연구
장호주(Jang Ho-Ju),서성연(Seo Seong-Yeon),양영성(Yang Young-Sung) 대한건축학회 2004 大韓建築學會論文集 : 構造系 Vol.20 No.6
This study presents centrally loaded experiments on cold-formed stainless steel and carbon steel circular hollow section<br/> columns. And attempts to experiment for the use of these stainless steel columns as structural compression members. An important<br/> part of the study is to investigate experimentally the mechanical properties and the strength of columns, which compared the<br/> stainless steel circular hollow section with the carbon steel circular hollow section. The paper presents compressed experiments on<br/> columns, including stub column tests and coupon tests. On the column experiments, a total 24 stainless steel and carbon steel<br/> column experiments are conducted, the slenderness ratios( λ=20, 30, 40, 50, 60, 70) as parameter. The experimental results were<br/> compared with the multiple column curves, ECCS and SSRC.<br/> Test result showed that stainless steel circular hollow section columns could be predicted superior to strength and plastic<br/> deformation. And that can be applied to structural members with many benefits. But it requires reasonable code for the stainless<br/> steel as more experiments and study in the future, according to it leaves much room for improvement, a low yield<br/> strength(Fy=205N/㎟) of Korean Standards, a high cost, the not established design code, etc.
그리드 기반의 토목공학 하이브리드 원격 실험의 리코딩 및 리플레이 서비스
장선(Sun Jang),이장호(Jang Ho Lee) 한국정보과학회 2007 한국정보과학회 학술발표논문집 Vol.34 No.1B
그리드 컴퓨팅 기술을 기반으로 한 원격 실험 환경 구축에 있어서 원격 실험만큼이나 실험결과 데이터를 저장하고 재연하는 것이 중요하게 대두되고 있다. 본 논문에서는 KOCED 프로젝트의 건설 연구 실험시설 중 하나인 실시간 하이브리드 다자유도 실험시설에 대한 프로토타입인 원격 하이브리드 실험에 대하여 나라다 브로커링 이라는 발간 및 구독 패러다임의 스트리밍 서버와 글로버스 툴킷에 기반 한 리코딩 및 리플레이 서비스를 통하여 실험결과 데이터를 저장하고 재연하는 시스템을 구축 하였다. 기존에 진행된 실험결과를 검색하여 볼 수 있게 함으로써 중복된 실험으로 인한 비용을 줄이고, 사용자가 원하는 데이터에 대한 토픽정보를 통하여 재연함으로써 실험결과 데이터의 효용성을 높일 수 있을 것으로 판단된다.
손실을 고려한 영구자석형 풍력발전기의 성능 특성 해석 및 실험적 검증
장석명(Seok-Myeong Jang),고경진(Kyoung-Jin Ko),최지환(Ji-Hwan Choi),최장영(Jang-Young Choi),이성호(Sung-Ho Lee) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
In this paper, analytical techniques for performance characteristics analysis of wind power generator with outer permanent magnet rotor are proposed. Furthermore, the proposed analytical techniques are validated by performance experiments of the manufactured generator. First of all, characteristic equations of losses such as copper loss, core loss are derived. Using the derived loss characteristic equations and equivalent circuit method, constant load and constant speed characteristics of wind power generator are analyzed. And then, to analyze performance of wind power system according to wind speed, d-q analysis model considering wind turbine characteristics is proposed. Finally, the obtained performance characteristics results are validated in comparison with those by experiments.