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나원기(La Won-Ki),양방섭(Yang Bang-Sub),이원상(Lee Won-Sang) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
LRT(Light Rail Transit) is called on railway vehicle less weight than general electric railway (middle weight railway vehicle) and classified with monorail, street car, magnetically levitated vehicle, automated guided transit, light rail transit with steel wheel, etc. This paper is descriptive of general specification, structure and development, performance evaluation of bogie for light rail transit with steel wheel on LRT.
나원기(Won-Ki La),양방섭(Bang-Sub Yang),이원상(Won-Sang Lee),장대성(Dae-Sung Chang) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
Most of operating railways in domestic, it is used to be Wheel flange lubricator system applied liquid spray type. Wheel flange lubricator are reduced the abrasion of wheel flange through spraying in accordance with operating on the curve or operating function of time base and/or distance base. this paper is written to introduce and study the efficiency for the angular velocity sensing type of lubricant systems.
이낙규(Nak-Kyu Lee),최태훈(Tae-Hoon Choi),이혜진(Hye-Jin Lee),최석우(Seog-Ou Choi),박훈재(Hoon-Jae Park),나원기(Won-Ki La) 한국생산제조학회 2005 한국생산제조시스템학회 학술발표대회 논문집 Vol.2005 No.5
In this paper Research development about a micro metal forming manufacturing system has been developed. A micro forming system has been achieved in Japan and it's developed micro press is limited to single forming process. To coincide with the purpose to be more practical, research and development is necessary about the press which the multi forming process is possible. We set the development of the equipment including micro deep drawing, micro punching and micro restriking process to the goal. To achieve this goal, Research about micro forming process to be related to multi process forming must be preceded first. Material selection and analysis about micro forming process are accomplished in this paper. And the basis research to make actual system is accomplished.