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이상호(Lee Sang-Ho),송현섭(Song, Hyeon-Seob) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.12
단면의 타원변형을 고려할 수 있는 요소를 사용하여 엘보우의 기하학적 비선형 거동을 설명하고 직선배관의 타원변형이 엘보우에 미치는 영향을 파악하였다. 또한 직선배관의 길이와 엘보우 휨 각도 사이의 관계를 파악하여 ASME 코드 식의 보완점과 올바른 해석결과를 얻는데 필요한 직선배관의 길이를 제시하였다. The effects of the ovalization of the tangential pipes to the elbows are analyzed. The geometric nonlinear behaviors of the elbows are shown with the element capable of ovalization. The relationships between the length of the tangential pipes in the models and the bend angles of the elbows are analyzed to supplement the ASME code. And the proper length of the tangential pipes for the elbow models are suggested.
이상호(Lee Sang-Ho),송현섭(Song, Hyeon-Seob) 한국산학기술학회 2008 한국산학기술학회논문지 Vol.9 No.2
유한요소 해석을 수행하여 엘보우의 거동을 파악하였으며 해석 시 엘보우의 휨 각도와 엘보우계수를 주요 변수로 사용하였다. 사용하중은 엘보우 축이 형성하는 평면 내에 작용하는 휨 모멘트를 사용하였으며 해석 결과를 이론적 정해 법으로 유도된 ASME 코드 식과 비교하였다. 또한 엘보우 단면의 응력상태와 유연도 특성을 이용하여 엘보우 단면의 타원변형으로 인한 엘보우의 기하학적 비선형 특성을 설명하였다. The pipe elbows subjected to in-plane bending moments are analyzed with the finite element method. The results from the finite element analysis are compared with ASME code equations that are theoretical closed form solutions. The geometric nonlinear effects due to the ovalization are explained with the magnitude and the types of the stresses and the flexibilities of the elbows with the emphasis on the bend angles and elbow factors.
공공시설물 내진보강을 위한 고내구성 마찰댐퍼의 성능평가
김호룡 ( Kim Ho-ryong ),이종석 ( Lee Jong-suk ),송현섭 ( Song Hyeon-seob ),박진완 ( Park Jin-wan ),김태상 ( Kim Tae-sang ) 한국구조물진단유지관리공학회 2023 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.27 No.1
내진보강용 댐퍼는 교량 가동단에서 상부구조와 하부구조 사이에 설치되어 교량 상부구조에서 발생되는 모든 변위는 온전히 댐퍼로 전가되며 이러한 발생변위는 댐퍼의 내구연한에 영향을 주는 주요한 요인이다. 기존 마찰댐퍼의 경우 이로 인해 댐퍼의 누유, 실링재 및 피스톤로드의 마모 등의 내구성 저하를 발생시킬 수 있으며, 마찰재가 외부에 노출되어 외부 환경에 의한 마찰재 물성변화 및 손상에 위험성을 나타내고 있다. 따라서 본 연구에서는 탄성체에 의하여 교량에서 반드시 발생하는 차량에 의한 진동, 충격 등의 미세변위를 수용할 수 있고, 축력조절을 통한 성능유지 및 유지보수가 용이한 내진보강용 댐퍼의 성능평가를 실시하였다. 성능평가 시험결과 제시하고 설계 에너지소산면적의 85 % 이상의 결과를 만족하였다.
송현섭 全北大學校 1985 論文集 Vol.27 No.-
It is indispensable, for an approach to Helen of Shakespeare, to survey Helen of Homer and of Euripides. Helen of Homer is a "gracious, lovely lady." She resembles an "immortal goddess" in her immortal beauty. Even though Helen has been ravished by Paris from Menelaus, she always is not only Priam's "dear child," but also Hector's respectful sister-in-law. Homer describes Helen as a chaste and modest lady. Helen blames herself as a "shameless, evil-minded and abominable creature." In a word, Helen of Homer is a beautiful, lovely lady, whose chaste and humble attitude is respected by the Trojan leaders. Helen of Homer is very different from Helen of Euripides and of Shakespeare in her personality. Helen of Euripides is particularly different from of Homer in many aspects: Helen of Euripides is, except Helen of Egypt in Helen, always cursed by the many characters around her. Even though Euripides endows Helen with immortal beauty as Homer does, his description of Helen in his many works is very severe in condemning her moral fault. Helen of Euripides is certainly a gracious and lovely "whore." Shakespeare also endows Helen with immortal beauty. Helen of Shakespeare reminds us of Christopher Marlowe's Helen whose "face that launched a thousand ships" to Trojan harbour, but Helen of Shakespeare is different from of Marlowe, whose "lips sucks forth" Faustus soul. Marlowe's is a witch, but Shakespeare's is not. Comparing Helen of Shakespeare with of Euripides, she is never a Helen of Egypt, but a Helen of Troy who lives in the same world of Helen in Euripides' works. Helen of Shakespeare is also a "whore" endowed with immortal beauty as Euripides' is.
宋顯燮 全北大學校 1981 論文集 Vol.23 No.-
The crux of this paper is to compare the uses of violence and fraud in Christopher Marlowe's The Jew of Malta and Chi Chun-hsiang's The Orphan of Chao. Although the periods of history in which these two works were written was approximately 200 years apart; and they were written about two vastly different cultures, the uses of violence and fraud were extremely similar. This is possible because the basic concepts of violence and fraud are expressed throughout the history of culture. In the West, from the time of Homer, men with characters of violence and fraud have been described thoroughly. In The Iliad, we see these traits in the character Achilles; in The Odyssey, in Odysseus. In Dante's Divine Comedy, Dante is introduced to Hell by Virgil where he meets the ghosts of ancient sinners who have suffered extreme torment. Milton, in Paradise Lost, represents violence in the character Moloc and fraud in the Satanic character Belial. Finally, Machiavelli, in The Prince, used the lion to symbolize violence and the fox to symbolize fraud. Writers and dramatists of the Elizabethan Age were greatly influenced by these works, and especially by The Prince. Christopher Marlowe was one of these men. In The Jew of Malta, Marlowe chronicles the life of Barabas, who through various acts of fraud eliminated all those who could speak against him. He used his daughter and servant in order to kill Lodowick and Mathias, and the rest of life was trying to secure himself from others who know he had caused these two men's death. Finally, because of an act of fraud on the part of Calymath and Ferneze, Barabas, himself was killed, instead of Calymath. In The Orphan of Chao the treacherous life of Tu-an Ku is described. Throughout this story Tu-an Ku is trying to consolidate his power in Yuan Dynasty China. He does this through planning the demise of his enemy, Chao Tun and his entire family. Through fraud and violence he kills all those concerned with Chao Tun's family, except Orphan of Chao, who was exchanged for the son of Ch'eng Ying in a daring plot by Ch'eng Ying and Kung-sun Ch'u-chiu. This boy was killed by Tu-an Ku, who thought he was Orphan of Chao. Finally, after Orphan of Chao has grown, Ch'eng Ying tells him the whole story, and he arrests Tu-an Ku who is tried and killed for trying to conspire against the Emperor. In both stories, the anti-hero is killed after having perpetrated numerous act of fraud and violence on other members of society. This paper goes into comparing the types of fraud and violence used by these two in depth in order to draw the conclusion that, violence and fraud are inherent traits present in all people, no matter what their race, color, or creed. That is, that all human beings have what I would like to term as a "shadow archetype"; or that all people are inherently evil and capable of performing violent and treacherous acts on others.