http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
조재훈,여명석,김광우,Jo Jae-Hun,Yeo Myeong-Seok,Kim Gwang-U 대한설비공학회 2006 설비저널 Vol.35 No.5
초고층 건물의 설계 및 시공단계에서 고려되어야하는 연돌효과로 인한 압력분포와 제반의 문제점 고찰을 통하여 건설관련 설계자, 시공자 및 HVAC 엔지니어에게 유용한 정보를 제공하고자한다.
정하중을 받는 구조물의 적층 제조를 위한 적응적 가중치 적용 동시 위상최적설계
조재훈(Jae Hun Jo),이중석(Joong Seok Lee) 대한기계학회 2021 大韓機械學會論文集A Vol.45 No.9
적층 제조는 전통적인 방식에서는 구현하기 어려운 복잡한 설계의 구조물을 효과적으로 제작할 수 있는 장점을 가지고 있다. 반면에 구조물 전체를 순차적으로 적층하여 제조하기 때문에 공간적으로 돌출되거나 떠있는 부분이 제조 과정에서 변형되거나 심지어 파괴되는 문제가 발생할 수 있다. 본 연구에서는 위상최적설계 기법을 이용하여 정하중을 받는 주 구조물과 적층 제조 과정에서 주 구조물의 자중을 떠받치는 역할을 하는 지지부를 동시에 설계한다. 위상최적설계 수식화에 있어 주 구조물과 지지부를 포함하는 전체 구조 간의 변형률에너지의 비를 목적함수 내의 다중 물리량의 상대적 중요도를 조절하는 적응적 가중치로 정의한다. 주 구조물과 지지부의 물성치를 정규화된 값으로 설정하여 다양한 설계 예제에 대하여 물성치의 변화에 따른 설계 결과에의 영향을 비교 분석한다. The additive manufacturing method has advantages for effectively manufacturing structures of complicated designs that are difficult to address by using traditional methods. Because the structure is built by sequential stacking entirely, however, the overhang or floating regions may be deformed or even fail during the additive manufacturing process. In this work, we design the main structure under a static load and the support parts for the main structure simultaneously using topology optimization for additive manufacturing. In the topology optimization formulation, the weighting factor determining the relative contribution of multiple quantities in the objective function is defined as a ratio of the strain energy of the main structure to that of the whole structure including support parts. By normalizing the material properties of the main structure and the support parts, the effects of the properties in the results are investigated for various design examples.
조재훈(Jo Jae-Hun) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.10
It is often assumed that the characteristics of airtightness of high-rise residential buildings are similar to those of typical detached houses. In high-rise residential buildings, however, air leakage happens not only by the exterior windows but also by the interior walls between dwellings. Moreover, there is many factors that have influences upon the air leakage in high-rise building. Therefore, it is important to know the air leakage data or the criteria of leakage of residential units to estimate the energy loads. This paper presents the airtightness characteristics of dwelling units in two high-rise residential buildings and the limited conclusions that can be drawn from these data. Based on the measurement data, the main cause of the airtightness distinction between two residential buildings is due to the different envelope types.
조재훈(Jo Jae Hun) 한국사회체육학회 2003 한국사회체육학회지 Vol.20 No.2
This study sought to consider the abstract of sport for all and draw the practical plan and logic for the participation of persons with disabilities in sport for all by comparing sport for all for persons with disabilities with sports for normal people. In particular, this study examined the concept of sport for all and what it means to persons with disabilities as well as the realities of sport for all for persons with disabilities and the basis of problems such as sports organization, budget, circles, institutions, instructors, programs, sports competitions, etc. Based on the results, a main activating plan was suggested as follows: 1. There should be a specific organization that will be fully responsible for sport for all. 2. The budget from the government should be expanded. Likewise, a very special financial plan such as donations, financial support, etc., should be considered. 3. The government should lead efforts to organize circle activities and try to activate local circle activities. 4. Persons with disabilities should use common facilities freely together with normal people. At the same time, local facilities should be built especially for persons with disabilities. 5. Instructors who have majored in adapted physical education should be arranged for persons with disabilities. In addition, a new qualification system should be established for them. More opportunities should also be given to special athletes. 6. A program especially designed for persons with disabilities should be developed. 7. The government should consider expanding its support for sports competitions for persons with disabilities. It should also devise ways and means to enable persons with disabilities to participate in athletic meets for normal people.
고층 사무소 건물에서의 연돌효과로 인한 압력분포 실측 및 문제점 분석
조재훈(Jo Jae-Hun),신현국(Shin Hyun-Kook),김광우(Kim Kwang-Woo) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.7
Recently, we know that stack effect in high-rise buildings causes various problems in winter such as elevator malfunctions, difficulties in opening and closing. Many studies have been done on the problems caused by the stack effect in office buildings, and several guidelines and solutions have been proposed by drawings reviews and airtight constructions. However, stack effect problems have occurred in existing buildings because they were not applied at the design stage and the construction one. To reduce the problems caused by stack effect after construction, we need to understand the overall airflows in the buildings through the pressure profile analysis. This paper deals with field measurement of pressure distributions and analysis of stack-induced problems in the existing high-rise office building.