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구동회(Dong-Whe Koo),김남포(Nam-Po Kim),한형석(Hyung-Suk Han) 한국철도학회 2003 철도저널 Vol.6 No.4
Using a conventional railway, a tilting train was applied as a means of improving vehicle speed during curve negotiation without any modification of infrastructure. In order to achieve the optimal car-body position control through the tilting mechanism, a dynamics analysis was required after the kinematics analysis of the tilting mechanism. For this, the geometric relationship of the linkage-type tilting mechanism was defined. Then, the equations of motion for the half car-body were derived. With the derived equations, the effect of the parameter change on performance was analyzed. The analysis result can be used in the optimum design of a tilting mechanism that considers the track environment, vehicle and operational conditions in which the tilting vehicle is applied
김남포(Kim Nam-Po),구동회(Koo Dong-Whe) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
Tilting system allow the train to pass curve at higher speed without affecting passenger comfort. As the tilting trains offer the optimum means of providing faster and more comfortable rail service with minimum of environmental disturbance and capital investment, more than 14 countries have now adopted or arc about to adopt tilting train technology. The Korean National Railroad is also planing to apply faster tilting train to the areas where the High speed rail service arc not provided. This paper describes the parametric study to achieve the optimal suspension design of tilting bogie for 180 ㎞/h Korean Tilting Train(TTX), which was done as a part of the Korean National R&D project.
김남포(Nam-Po Kim),구동회(Dong-Whe Koo),한형석(Hyung-Suk Han) 한국철도학회 2003 철도저널 Vol.6 No.4
Using a conventional railway, a tilting train was applied as a means of improving vehicle speed during curve negotiation without any modification of infrastructure. As a study for the optimum design of the tilting mechanism of a tilting vehicle, the kinematics sensitivity of the tilting mechanism was analyzed. Using the geometric relationship of the linkage-type tilting mechanism, the relationship of the parameters and the performance index was defined using nonlinear algebraic equations. With the defined relation, the effect of change in the parameters on the performance was analyzed. The analysis result can be used in the optimum design of a tilting mechanism that considers the track environment, vehicle and operational condition in which the tilting vehicle is applied.
정우진(Woo-Jin Chung),구동회(Dong-Whe Koo),양신추(Shin-Choo Yang) 한국철도학회 2005 한국철도학회논문집 Vol.8 No.1
The turnout system is typical railway facility to be in the way of conventional railway line s speed-up. The KNR(Korean National Railroad) has a speed limit regulation(130km/h) for the passing the turnout to guarantee a safety. This research had been performed to confirm the propriety of this regulation by using experimental and analytical way before it was carried out. The reasonableness of the speed-limit regulation was judged base on the several experiments. It was proved that the regulation was not useless as it had been regarded and very important guide at least up to now.