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김응태(Eung-Tae Kim),고성호(Sung-Ho Ko),김현(Hyun Kim),정용채(Yong-Chae Jeong),최성필(Seong-Pil Choi) 한국유체기계학회 2006 유체기계 연구개발 발표회 논문집 Vol.- No.-
The purpose of this study is to explain the importance of Vibration Monitoring Device by introducing an example of Predictive Maintenance System using Condition Monitoring System of Hydro-turbine generator. Confirming vibration of generation equipment is commissioning procedure during equipment completion for checking guaranteed items. Data from Generator output range are used to determine output band to continue the performance of equipment. The Vibration Monitoring System is not absolute method of maintenance, but if it is used well with expert, it will be visible, data-analyzed, scientific maintenance more than others. And also, Condition Monitoring System is very important for remote controlled small hydro-power plant although most of it is installed in Large hydro-power plant.
한석영(Seog Young Han),고성호(Seong Ho Ko),최형연(Hyung Yeon Choi) 한국자동차공학회 2002 한국 자동차공학회논문집 Vol.10 No.1
The purpose of this study is to develop an optimal performance design of a concrete median barrier using the design of experiment and crash simulation which is done by Pam-Crash, one of the commercial crash simulation software. A formula of characteristic value was suggested to obtain an optimal performance design considering all of von Mises stress, volume and acceleration at center of gravity of a heavy truck. An optimal design of a concrete median barrier was obtained by the analysis of variance based on design of experiment and crash simulation. A crash simulation with the optimal design was accomplished in order to verify the suitability of the suggested formula and the proper application of the design of experiment. The obtained optimal design was satisfied for a domestic design regulation of a concrete median barrier.