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RISS 인기검색어
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- 저자 : 김영남(Youngnam Kin) (검색결과 1 건)
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RUS 법을 이용한 세라믹제 Ferrule의 크랙 결함 평가
백경윤(Kyungyun Baek),민한기(Hanki Min),김영남(Youngnam Kin),양인영(Inyoung Yang) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
When an optical fiber is connected to the machinery, a ferrule is used to set the optical axes of an optical fiber very precisely. Therefore, it is required high dimensional precision, lack of defect and high expectations. Up to now the optical instrument has been used for the shape flaw inspection of the ferrule. But in this paper we examined the detectable defect and expectation by using the Resonant Ultrasound Spectroscopy (RUS). By making use of the principle of RUS, we made a new measurement system (RUS System). The RUS System is the measurement which is to excite specimen and to inspect the difference of natural frequency pattern between acceptable specimen and specimen which has some defects. Through the experiment we analyzed the difference of natural frequency pattem of these specimens and we chose the available mode in the plant. To verify the data obtained from the experiment, we carried out the simulation from the explicit finite elements code, Nastran. And we compared the results in the experiment with those in the simulation.<br/>
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