항공 통신, 항법, 식별장비 시험평가

김성우,김민수,이영식,이병화,오우섭,Kim, Sung Woo,Kim, Min Su,Lee, Young Sik,Lee, Byoung Hwa,Oh, Woo Seop 한국군사과학기술학회 2012 한국군사과학기술학회지 Vol.15 No.5

Airborne radio communications, navigation, and identification equipments are the basic equipment of airplane. Airborne radio communications, navigation, and identification equipments are characterized by user's many quantitative and qualitative requirements. These equipment look like simple test and evaluation, but they have many complex factors. This paper describe the test and evaluation of airborne radio communications, navigation, and identification equipments.

Alloy 600 노즐관통부의 이종금속용접 잔류응력에 따른 응력부식균열 거동 분석

김성우,김홍표,김동진,정재욱,장윤석,Kim, Sung-Woo,Kim, Hong-Pyo,Kim, Dong-Jin,Jeong, Jae-Uk,Chang, Yoon-Suk 한국압력기기공학회 2010 한국압력기기공학회 논문집 Vol.6 No.2

This work is concerned with the analysis of stress corrosion cracking(SCC) behavior of Alloy 600 nozzle penetration mock-up according to a residual stress induced by a dissimilar metal welding(DMW) in a nuclear reactor pressure vessel. The effects of the dimension and materials of the nozzle penetration on the deformation and the residual stress induced by DMW were investigated using a finite element analysis(FEA). The inner diameter(ID) change of the nozzle by DMW and its dependance on the design variables, calculated by FEA, were well consistent with those measured from the mock-up. Accelerated SCC tests were performed for three mock-ups with different wall thicknesses in a highly acidic solution to investigate mainly the effect of the residual stress on the SCC behavior of Alloy 600 nozzle. From a destructive examination of the mock-up after the tests, the SCC behavior of the nozzle was fairly related with the residual stress induced by DMW : axial cracks were found in the ID surface of the nozzle within the J-weld region where the highest tensile hoop stress was predicted by FEA, while circumferential cracks were observed beyond both J-weld root and toe where the highest tensile axial stress was expected.

19세기 초반 노상추(盧尙樞)의 백운동 별업(別業) 조성과 경영

김성우(Kim Sung-woo) 한국역사연구회 2010 역사와 현실 Vol.- No.78

The subject of this article is a historical figure, Roh Sang-chu (1746-1829). After ending his 28-year-long bureaucratic career as the associate commander at Gadeuk Naval Fort in 1813, he started a typical life of a rural yangban in his home town, Seonsan, Gyeongsang-do province for 17 years until his death in 1829. The most notable feature that involved the latter years of his life at hometown was the creation of the Baeg'un-dong manor ("byeol'eop"). He started creating the manor in 1814 and dedicated himself to developing it as a mean for economic development and social stability of the village, until his death there after a long illness. It is the locale of Baeg'un-dong that this research pays the greatest attention to. It was a border village under the jurisdiction of Dogae-myeon, Seonsan prefecture in the Joseon dynasty. As a border village, it was much closer to Bian prefecture than to Seonsan. For this reason, Baeg'un-dong now belongs to Uiseong County. The fact that it was alienated from the Seonsan prefecture, in spite of its belonging to the prefecture, is the most crucial factor which determined the historical-geographical character of the village. It was for this reason that Roh Sang-chu made efforts to build a shelter for illegitimate descendants there. He had an illegitimate son, Roh Seung-yeop(1796-1842). Roh Seung-yeop and his descendants led a socio-economically stable life under the guardianship of Roh Sang-chu, who acted as a patriarch of the manor. But their stable life began to derail after the death of Roh Sang-chu, due to their disadvantageous social status as 'illegitimates.' In the course of the downfall, the second and third generation of descendants of Roh Seung-yeop had to earn their lives as hired hands or loggers, leading a hard life in a small, secluded area inside Hwa'rim, village for the legitimate descendants of Roh's lineage. It testifies to the fact that the illegitimates were given little opportunities for their social activities during Joseon dynasty. Given this social background of Joseon dynasty, Roh Sang-chu s experimentation to create a manor for the illegitimate descendants had to end with incomplete success.

한국형 공격헬기 임무탑재장비 구조도 개념 연구

김성우,김명진,오우섭,이종훈,임종봉,Kim, Sung-Woo,Kim, Myung-Chin,Oh, Woo-Seop,Lee, Jong-Hoon,Yim, Jong-Bong 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.4

The importance of avionics systems has increased to a significant level in modern aircraft development. Modern avionics system is a complex integrated system of state-of-art hardware and software technology. Specifying the avionics system architecture is the most important task throughout the avionics system design process. This paper reviews modern avionics system architectures and proposes an effective avionics architecture suitable for modern attack helicopters.

북한의 핵테러와 대응방안

김성우,Kim, Sung Woo 한국융합보안학회 2014 융합보안 논문지 Vol.14 No.6

한국은 북한의 핵무기 위협에 우선적으로 대응하여야 하는 상황에 직면해 있다. 전략적으로 대응방향은 한국 자체 및 미국의 억제전력을 강화함과 동시에 현재 상태에서 그에 대한 현실적인 해결책은 선제타격을 통한 사전 제거라는 점도 인정할 필요가 있다. 현재 북한의 미사일 위협은 상존하고 있으며 미사일에 탑재시킬 정도의 핵무기를 소형화하는데 성공하였을 가능성도 매우 높다. 한국은 적의 미사일 방어에 관심을 가져야 하며 대공방어는 하층방어와 상층방어를 중심으로 한 전반적인 미사일 방어 체제의 구축방향을 토의 연구하는 한편 인구밀집 도시와 국가 전략시설을 방호할 수 있는 체계를 구축해야한다. 지금까지 북한의 핵무기 위협과 관련된 쟁점은 6자 회담과 같은 국제적이고 외교적인 접근에 의해 문제를 해결하려고 주 노력을 경주하였는데 이 방법이 과연 효율적인지, 북한의 핵무기 위협에 대한 정보의 신뢰도는 과연 어느 정도 인지와 이것을 기초로 우리 군의 방어태세의 하나인 킬체인(Kill Chain)이 효과적인 방어수단이 될 수 있는가 등이다. 지금까지 우리가 얻은 교훈은 북한이 스스로 핵무기 개발을 포기하지 않는 한 외교적 노력으로만 북한의 핵무기를 개발을 억제하는 것은 불가능하다는 것을 알았다. 외교적인 노력과 더불어 군사적인 방법으로 다양한 억제 대책도 실제로 시행할 수 있도록 준비해야 한다. South Korea should correspond to the primary threat to North Korea's nuclear weapons. It is necessary to have countermeasures to solve the realistic problems of North Korea's nuclear weapons. We can intensify military pact between the United States and Korea and at the same time strengthening the current military power. Currently, we take note the threat North Korea's missile. We can not control the development of a nuclear weapon and there are possibilities that North Korea have successfully miniaturized nuclear enough to carry by the missile. We should overview and check the Korea's missile defenses system. While the direction of the overall missile defense system deployment with a focus on lower and upper air defense network. And discuss defense research should be to build a system that can be protected with a key strategic facilities and cities. While North Korea have nuclear weapon, the main issues related to North Korea's nuclear threat. The six party talks countries try to solve the problem by the international and diplomatic approach. At the same time we should make somewhat to defend measures such as military defenses of Kill chain system to protect our country. Kill Chain is on of the effective defense system. We know that North Korea do not abandon to develop nuclear weapons by diplomatic efforts. We should performed in fact by a variety of military suppression method.

입자(粒子)와 장(場) : 동서양 건축에서의 단위개념

김성우,Kim, Sung-Woo 한국건축역사학회 2005 건축역사연구 Vol.14 No.1

All architecture in the history were based on a certain concept of architectural unit that functioned as a base model of architectural design. As we know, such model was not the same in the East and the West, and therefore, their architectures are not the same. This paper aims to identify how and why such base model of the two cultural area are different. As one way of discussing this issue, the concept of particle and field, as two representative idea of the West and East respectively, the employed. This kind of discussion can not follow the way of scientific verification as method of argument. However, the understanding of such concept of unit model is crucial for the understanding of the architecture of the culture in general. In basic sense, the tradition of Western architecture is rooted in the model of particle, where, architecture is conceived to be as a independent unit standing on earth as if it is a box like object. While, the tradition of Eastern architecture is rooted in the model field, where, architecture is conceived to be a part of field organization. In present days, we are used to the model of particle as if it is the only possible model of architecture. But, in fact, what man need to achieve in their architecture and city, is the balance between the two models.

비례(比例)와 기운(氣韻) - 동서양 건축에서의 심미성 -

김성우,Kim, Sung-Woo 한국건축역사학회 2005 건축역사연구 Vol.14 No.2

All architectures in the history have certain attitudes of aesthetic expression of their own. Depending on the culture, such aesthetic attitudes are not the same but different. This paper aims to identify the nature of the difference of aesthetic attitude in the architectures of the East and the West. As a way of approach for this purpose, two keywords are employed as representative concept. They are: 'proportion' and 'vitality'. Proportion, of course, represent the attitude of the Western, while, vitality, the Eastern. Although these two words are subjective selection, it is hoped that the nature of aesthetic attitudes could be observed through the windows of these two representative concepts. We all know that the architects and students of architecture of this period, are very much concerned about the aesthetic expression of their design. However, the value judgement of aesthetic quality seems quite confused in modem period. If the nature of aesthetic attitudes of the Eastern and the Western architecture is well understood, such understanding will help much for the direction of architectural aesthetic of future architecture.

호남지방 전통주택에서의 규모와 평면형식 -전남 장흥군 관산읍 방촌만을을 중심으로-

김성우,이소연,Kim, Sung-Woo,Lee, So-Yeon 한국건축역사학회 1993 건축역사연구 Vol.2 No.2

The plan of Korean traditional houses are devided by the span-units which is the automatic result of the timber construction. This study aims to analyze the ways plan type change when the number of span changes. One village named Bangchon in Honan Province was selected where we investigated more than 30 houses ranging from 3 span to 6 span. It is identified that there were certain rules which govern the plan change when number of span change. When one span is added onto 3 span houses, wooden floor of one span is added in between the two ondol-rooms. When one span is added onto 4 span houses, kitchen is enlarged. When one span is added onto 5 span houses, wooden floor is enlarged into 2 span, Also the plan of Man's quarter(Sarang-chae) was investigated and compared to Lady's quarter. The research proves that such rules of plan change need to be considered as a basic standard of analysis when traditional houses are to be studied.

중국동북지역 소수민족의 원시적 주거형식과 한국주거와의 관계 -혁철족(赫哲族), 악륜춘족(鄂倫春族), 악온극족(鄂溫克族), 달알이족(達斡爾族), 몽고족(蒙古族)을 중심으로-

김성우,Kim, Sung-Woo 한국건축역사학회 2005 건축역사연구 Vol.14 No.1

Historical study of Korean traditional houses have been carried, mainly, based on the geographical region of Korean peninsula. However, the case of primitive houses can not be researched according to the geographical and racial concept of modern nations. This study aims to examine the primitive houses of ethnic minorities of northeastern China, where the cultural and racial background have been deeply rooted in the history of Korea as well as Korean traditional houses. Through the field research and literary materials, the basic types of primitive houses of the five ethnic minorities could be identified. Among these types, those that have possible relationship with Korean houses, are cone shaped house, underground house, and elevated wooden house. Archeological evidences of underground houses were amply found in Korea already, but above ground evidences could not be found. However, It seems quite certain that the cone shaped houses and elevated wooden houses, too, existed in Korea as one of the earliest housing types, as can be examined in remaining examples in Korean peninsula. With no doubt, the primitive houses of Korea have strong connection with that of the ethnic minorities of northeastern China. This can be verified through the facts that the evidences of cone shaped houses, the similarities of the use of Inner space, the evidences of elevated wooden houses. Also, the combination of wooden floor and ondol, which is known to be one of the strongest characteristic of Korean traditional houses, could be originated from the combination of primitive summer house, the elevated wooden house, and the winter house, the underground house with ondol.

한국형 기동헬기 임무탑재장비체계 설계 및 입증

김성우,이병화,유연운,이종훈,임종봉,Kim, Sung-Woo,Lee, Byoung-Hwa,Yu, Yeon-Woon,Lee, Jong-Hoon,Yim, Jong-Bong 한국군사과학기술학회 2011 한국군사과학기술학회지 Vol.14 No.3

Mission Equipment Package(MEP) system is a collection of avionic components that are integrated to perform the mission of the Korean Utility Helicopter(KUH). MEP system development is classified mission-critical embedded system but KUH MEP system developed including flight-critical data implementation. It is important to establish the good development and verification process for the successful system development. This paper describe the development and verification process in each phase for the KUH MEP system. MEP system design is verified through the qualification test, system failure test and compatibility test in System Integration Laboratory(SIL).