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김영철,이무강,나중균,박종원 慶星大學校 環境問題硏究所 1998 環境硏報 Vol.8 No.1
Extraction charaxteristics of hazardous components were investigated by anticorrosive sand. The hazardours components for anticorrosive sand were not exceeded limited level of groundwater quality. The COD concentration of waste-molding sand showed remarkable difference by molding factory, which was relatively high level. The quantity of corrosion for metalic pipe after lapse of ll month increased in the order of the following sample: sand>soils>waste molding sand. However, anticorrosive sand did not showed corrosion, it was observed that anticorrosive sand one of the the best material used for anticorrosive metalic pipe.
김석현,남윤수,유능수,박무열,김태형,박해균 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.A
A vibration monitoring is performed on a 1kW class stand alone wind turbine(W/T). When a W/T model is developed, general performance under various wind condition should be verified to introduce the product in the market. Especially, vibration characteristics within operating speed range are very important in the aspect of structural stability as well as generator's electrical efficiency. This paper examines the vibration performance of a home made 1kW W/T. Various data of the W/T model are acquired in real time using a remote vibration monitoring system installed in Daekwanryung test site. Vibration stability of the W/T structure is diagnosed based upon the data and the result is used to estimate the applicability of the W/T model.
김석현,남윤수,유능수,박무열,김태형,박해균 강원대학교 산업기술연구소 2006 産業技術硏究 Vol.26 No.B
A vibration monitoring is performed on a 1kW class stand alone wind turbine(W/T). When a W/T model is developed, general performance under various wind condition should be verified to introduce the product in the market. Especially, vibration characteristics within operating speed range are very important in the aspect of structural stability as well as generator's electrical efficiency. This paper examines the vibration performance of a home made 1kW W/T. Various data of the W/T model are acquired in real time using a remote vibration monitoring system installed in Daekwanryung test site. Vibration stability of the W/T structure is diagnosed based upon the data and the result is used to estimate the applicability of the W/T model.
김석현,남윤수,유능수,이정완,박무열,박해균,김태형 江原大學校 産業技術硏究所 2005 産業技術硏究 Vol.25 No.A
A vibration monitoring system for a small class of wind turbine (W/T) is established and operated. The monitoring system consists of monolithic integrated chip accelerometer for vibration monitoring, anemometers for wind data acquisition and auxiliary sensors for atmospheric data. Using the monitoring system, vibration response of a 6kW W/T generator is investigated. Acceleration data of the W/T tower under various operation condition is acquired in real time using LabVIEW and is remotely transferred from the test site to the laboratory in school by internet. Vibration state of the tower structure is diagnosed within the operating speed range. Resonance frequency range of the test model is investigated with the wind speed data of the test site.
필드/환경 인자를 고려한 BSR 주행 재현에 대한 연구
목무균(Mu Gyun Mog),이종호(Jong Ho Lee),최성욱(Seong Ouk Choi),이학주(Hak Ju Lee) 한국자동차공학회 2013 한국자동차공학회 부문종합 학술대회 Vol.2013 No.5
The buzz, squeak, rattle noise become to be one of the main field issue. In order to reduce to these noise, New testing technology is need to develop the new vehicle. Customer complain for these noise are too ambiguous and various, it is very difficult to find and remove the noise source. Normally the expert for these noise at service center depend on just his know-how. To prevent these problem at early stage, HMC develop new tracking system of noise source using a seismic wave analysis method. Also new vehicle test method at cold and hot condition are developed to seek these noise first in the world.