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Vampire를 이용한 경부고속철도 차량의 동적 안정성 해석
박찬경(Park Chan-Kyoung),김기환(Kim Ki-Hwan),홍진완(Hong Jin-Wan),심태웅(Shim Tai-Woong) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
Dynamic stability of a high speed train is very important. This paper presents a dynamic stability analysis of K-TGV using Vampire Program. The analysis of stability on this paper is performed in condition of track irregularity, curved track and strong gust. The critical speed of K-TGV is 140㎧, and it is stable when runs on 7000R(cant 150㎜) curved track and on linear track with the body exerted 101kN lateral impulse force.
박찬경(Park Chan-Kyoung),최강윤(Choi Kang-Yyun),현승호(Hyun Seong-Ho),곽수태(Kwak Soo-Tae) 한국철도학회 2001 한국철도학회 학술발표대회논문집 Vol.- No.-
Dynamic behavior of high speed train is very important because the high speed train should be safe and satisfied with the ride comfort. An eddy current brake system is mounted on trailer bogie and wheel set. The eddy current braking force longitudinally exerts on the articulated trailer bogie and the attraction force vertically exerts on the wheelset. Because a frame of eddy current brake system is flexible, these forces generate the vertical vibration at middle point of the frame. Also, the vibration change the vertical clearance between an electromagnet and top of rail which affect the magnitude of braking and attracting forces. Therefore, the dynamic behavior of the eddy current braking system must be predicted for design the dynamic characteristic of its mounting system when normally operate on rail which have irregularity. Vampire program is used for prediction of the dynamic behavior of an eddy current braking system.
판토그라프 접촉력 측정을 위한 스트레인 게이지 내장형 센서 개발
박찬경(Chan-Kyoung Park),백진성(Jin-Sung Paik),김영국(Young-Guk Kim),김기환(Ki-Hwan Kim) 한국철도학회 2010 한국철도학회 학술발표대회논문집 Vol.2010 No.7
The KTX-Sancheon has been commercially operating on the high-speed line since March. 2. In order to verify the performance of high-speed train and core equipments such as current collection system, sophisticated tests and evaluating procedures should have been considering. In this paper, the load cell with a built-in strain-gauge which developed to improve measuring method of contact force between the pantograph and catenary system is introduced. The static test results of the load cell shows that its design is very suitable and applicable for the dynamic test and on-line test. After the test and evaluation of load cell's dynamic calibration with pantograph, we will be applied to test interaction characteristics between the pantograph and catenary system on the high-speed line.
일반적인 접촉특성을 이용한 휠/레일 접촉모듈 프로그램 개발에 관한 연구
박찬경(Park Chan-Kyoung),배대성(Bea Dea-Sung),조희제(Cho Hee-Jae),조영걸(Cho Young-Geol) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
The railway vehicle is composed of many suspension components, such as 1st springs, 2nd dampers, that have an influence on the dynamic characteristics of high speed train. Also, the wheel/rail shapes and its contact mechanism affect the dynamic behavior of high speed train. but these geometric contact characteristics are nonlinear functions of the wheelset lateral displacement and it do not exact dynamic analysis for high speed train. there is a need to develop a new wheel/rail contact module for dynamic behavior and wheelset model is divided motor box, wheel box and wheel body. This wheel is moved by motor box and constrained by joint. It is almost same a train and its result is more exactly.
철도차량 동특성 해석을 위한 휠/레일 상호작용의 선형모델링 연구
박찬경(Park Chan-Kyoung),박기준(Park Kee-Jun),박준서(Park Jun-Seo),배대성(Bae Dae-Sung) 한국철도학회 1998 한국철도학회 학술발표대회논문집 Vol.- No.-
A linar numerical model of the wheel-rail interation and the track geometry is developed for multi-body dynamics program. The simulation results are very similar to these of VAMPIRE simulation. This program can be used for the analysis of train dynamic performance.
경부고속철도 시험선 구간에서 G7 고속전철 차량의 동특성 검토
박찬경(Chan-Kyoung Park),김영국(Young-Guk Kim),배대성(Dae-Sung Bae),박태원(Tae-Won Park) 한국철도학회 2001 철도저널 Vol.4 No.4
The dynamic behavior of high speed train is very important because of its safety and passengers' ride comfort. The railway vehicle is composed of many suspension components, such as 1st springs, 1st dampers, 2nd springs and 2nd dampers, that have an influence on the dynamic characteristics of high speed train. Also, the wheel/rail shapes and the track geometry affect the dynamic behavior of high speed train. This paper reviews the dynamic behavior of KHST in the KTX test line. The VAMPIRE program is used for this simulation. The simulation results are within the limits of safety criteria. Thus the KHST can operate safely at 350 km/h in the KTX test line.