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RISS 인기검색어
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- 저자 : 양영훈(Young-Hun Yang) (검색결과 6 건)
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양영훈(Young-Hun Yang),이중혁(Joong-Hyeok Lee),박선미(Sun-Mi Park),김석현(Seockhyun Kim) 대한기계학회 2018 대한기계학회 논문집. Transactions of the KSME. C, 산업기술과 혁신 Vol.6 No.2
메가와트 급의 대형 풍력터빈은 매우 낮은 속도로 장시간 회전하면서 전력을 생산한다. 터빈에 사용되는 베어링은 반복 하중에 장시간 노출되면서 결함이 발생하기 쉬운 요소이다. 큰 고장을 사전에 방지기 위해서는 베어링의 결함을 초기에 진단하는 것이 중요하다. 그러나 축의 회전속도가 낮고 하중이 작을 때, 작은 결함에서 내는 미세한 이상 진동은 일반적인 가속도계로는 그 검출이 쉽지 않다. 쇽펄스 센서는 베어링과 내·외륜 사이에 미세한 충돌이 발생할 때, 이를 공진 증폭 시켜 유의미한 검출신호를 출력시킨다. 본 연구에서는 저속 회전기계 모듈을 제작하여 가속도계로 신호 검출이 어려울 정도의 작은 결함을 만들었다. 이를 대상으로 쇽 펄스 센서로 미세한 결함 신호의 검출이 가능한지를 확인하였다. Large megawatt wind turbines produce electricity at very low speeds for long periods of time. The bearings used in the turbine are susceptible to failure due to prolonged exposure to cyclic loads. It is important to diagnose bearings defects early to prevent large failures in advance. However, when the rotation speed of the shaft is low and the load is small, it is not easy to detect a minute abnormal vibration from a small defect by a general accelerometer. When a slight collision occurs between the bearing and the inner/outer races, the shock pulse sensor is resonated and generates a defect signal. In this study, a low - speed rotating machine module was fabricated and made a small defect that is difficult to detect signal with accelerometer. With this module, we examined whether a shock pulse sensor can detect a minute defective signal.
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Kodu를 이용한 프로그래밍 중심 STEAM 교육 프로그램 개발 및 적용
김태훈(Tae-Hun KIM),양영훈(Young-Hoon YANG),김종훈(Jong-Hoon KIM) 한국수산해양교육학회 2013 수산해양교육연구 Vol.25 No.5
The purpose of this study was to develop the STEAM educational program based on the computer programming. STEAM education has been recently attracted to a lot of people. We had a focus of computer science in STEM fields. We used the programming language f or learning KODU. We selected appropriate topics for STEAM education and learning programming. We developed the educational program of 30 hours about selected topics and had classes for 4th and 5th grade elementary students. In order to verify the effectiveness of the educational program, we analyzed the results of pre- and posttest about GALT(Group Assessment of Logical Thinking), TTCT(Torrance Tests of Creative Thinking), science-related affective domain, and mathematical interests and attitudes tests. In the analysis results, the education program we developed had positive impacts on creativity, logical thinking, and science-related affective domain of elementary school students.
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양영훈,정집문,고성룡 대한건축학회 1999 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.19 No.2
The purpose of this study is to propose a planning direction of cremated human remains deposit room in charnel houses. The study method is as follows : first, to investigate the cases of cremated human remains deposit rooms in 15 charnel houses constructed since second, to propose the planning direction of spatial composition based on the analysis results. The conclusions are as follows first, cremated human remains deposit room is proposed to be planned with respect of offering the mourning left better architectural environment, avoiding its congestion resulted from accepting too many enshirinements, second, it is proposed to be planned considering lightness and ventil first, third, it is proposed that the arrangement of windows and lights be determined beforehand to be consistent with the arrangement of columbariums in the planning step charnel houses.
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