• Title, Summary, Keyword: High-speed train

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The Study for Speed-up of Main Line by High Speed Train (기존선의 고속전철 연계운용으로 고속화 방안)

  • 박광복
    • Proceedings of the KSR Conference
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    • pp.105-113
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    • 2001
  • This report was studied about speed-up for main line of KNR(Korea National Railroad) by High Speed Train. The maximum speed of Kyun-Pu line was recorded a 140km/h by Saemaul train in 1985 and the average speed its is a 107km/h now. For operation KTX Kyun-Pu High Speed Train and G7 Korea High Speed Train in KNR line, this report was studied about operation status of High Speed Train in advanced countries, operation situation of train in KNR line and plan of speed-up for main line.

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A Comparative Study on Crashworthiness for Motorized Trailer of Korean High Speed Train in planing (한국형 고속전철 동력객차 설계초안 모델의 충돌특성 비교연구)

  • 김헌영;이종근
    • Proceedings of the KSR Conference
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    • pp.534-541
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    • 1999
  • The purpose of this study is to suggest the effective analytical procedure using finite element model for the crashworthiness of motorized trailer of high speed train. In the analysis of end-on collision of Motorized Trailer for Korean High Speed Train., deformed pattern, rigidwall force, internal energy and each part section force is obtained. From those indices, we evaluate crashworthiness of motorized trailer for Korean High Speed Train in planning. The numerical results are applied to the design of motorized trailer of Korean high speed train.

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VCB Control Algorithm Verifications of Korean High Speed Train (한국형 고속전철의 VCB 제어 알고리즘 검증)

  • Jeon, J.W.;Jeong, P.K.;Lee, J.H.;Park, D.Y.;Kim, Y.J.;Lee, B.S.
    • Proceedings of the KIEE Conference
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    • pp.1362-1364
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    • 2000
  • This paper presents the control algorithm verification process for VCB (Vacuum Circuit Breaker) of Korean High Speed Train. In order to enhance the reliability of the control algorithm, the verification process must be performed. The verification is conducted by comparing the pre-designed control algorithm with the pre-planned scenario by simulation tools such as SDL and MSC. This verification process will be applied to the other control algorithms of various control units of Korean High Speed Train.

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A Study of Systematization for Train Control Technique (열차제어기술 체계화 방안에 대한 연구)

  • Lee, Jae-Ho;Shin, Duc-Ko;Lee, Kang-Mi
    • Proceedings of the KSR Conference
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    • pp.2010-2016
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    • 2009
  • Before introducing high speed train, train signal system was operated passively depending on a driver by signal lamp display. Now it is changing to onboard signaling system because of train speed increased(conventional track is 230km/h, high speed track is 380km/h), high speed. low speed freight train operation mixed, operation for high speed train in conventional track and dense operation. ie. ETCS(European Train Control System) Level 1 is introducing. Also, in case of high speed train, the train control system of France was introduced and has operated from 2004, now we have a difficulty for rising speed more than 300km/h because of commercial operation speed limited as 300km/h. Therefore, it need to establish the train control technique according to trackside surroundings and develope standard system like European ERTMS/ETCS, China CTCS(Chinese Train Control System), Japan D-ATC(Digital Automatic Train Control). In this paper, we derive the systematization method for Korea train technique by network-oriented, information-oriented, intelligence-oriented and combination-oriented corresponding train development direction. Proposed method has a merit to prevent cross by mixed operation with existing system and improvement after validity demonstration and system development and supply train system to meet user requirement in exporting.

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Analysis of the Effect of Wind on the Dynamic Behavior of High Speed Train (바람이 고속전철의 동적 안전성에 미치는 영향 분석)

  • 김영국;박찬경;박태원;배대성
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.11 no.8
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    • pp.349-356
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    • 2001
  • The dynamic behavior of high speed train is very Important because the railway should be safe and Is satisfied tilth the rode comfort of passengers. The train 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, the track conditions and geometry and many environmental factors, such as rain, snow and wind. affect the dynamic behavior of high speed train. This paper reviews the effect of wind and track conditions on the dynamic behavior of high speed train. The VAMPIRE program Is used for this simulation. The result of simulation shows that the high speed train should not be operated when the wind velocity is beyond 34.5 m/sec.

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The Conceptual Design of High Speed Railway Train System (고속전철 차량시스템의 개념설계)

  • Choi Yong-Hoon;Kim Kyoung-Taek;Yoon Se-Kyun;Chung Kyung-Ryul
    • Proceedings of the KSR Conference
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    • pp.285-290
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    • 2005
  • In this paper, the general process of the conceptual design of high speed train system was introduced by the review of the design process of Korea High Speed Train. The development of a general design process of high speed train is necessary in order to lead a high speed railway market in the future. For the conceptual design of high speed train system, the goals to develop a new high speed train are set. The different high speed train configurations are chosen regarding traction power, bogie type, etc and repeatedly evaluated with respect to the requirements

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Analysis of Dynamic Behavior of the High Speed Train by External Force due to the Gust (동적거동 관점에서의 돌풍에 대한 고속전철 운행속도 영향 연구)

  • Park, C.K.;Kim, Y.G.;Choe, K.Y.
    • Proceedings of the KSME Conference
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    • pp.495-500
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    • 2001
  • The dynamic behavior of high speed train is very important because it should be safe and is satisfied with the ride comfort of passengers. The railway is composed of many suspension components-1st springs, 1st dampers, 2nd springs, 2nd dampers etc- that have an influence on the dynamic characteristics of high speed train. Also, the wheel/rail shapes, the track condition and geometry and many environmental factors-rain, snow, wind etc-are affected the dynamic behavior of high speed train. This paper is reviewed the effect of wind(gust) on the dynamic behavior of high speed train. Vampire program is used for this simulation. The result of simulation shows that high speed train should not be operated when the gust speed is beyond 34.5m/sec.

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State-of-the-Art on the Indoor-Noise Characteristics of High Speed Train (고속전철의 실내소음특성에 관한 연구현황분석)

  • 이우식;박철희
    • Journal of the Korean Society for Railway
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    • v.2 no.3
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    • pp.18-25
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    • 1999
  • A high speed train named Korean High Speed Train (KHST) with its maximum operating speed 350 km/h is now under development. For the successful design of a quiet and comfortable high speed train, it is important to understand the general features of the noise and vibration characteristics of high speed train. This paper reviews extensively collected materials on the noise and vibration characteristics of existing high speed trains. Based on the noise and vibration characteristics of TGV systems, a simple indoor-noise prediction rule is proposed for the TGV-type high speed trains such as KHST The indoor-noise of KHST at 350km/h is expected to be larger than at least 71 dBA. Some important researches conducted for designing KHST during last two years under the G-7 project are also briefly introduced at the last part of this paper.

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Analysis of Aerodynamic Noise in High Speed Trains

  • Kim, Tae-Min;Kim, Jung-Soo
    • International Journal of Railway
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    • v.4 no.3
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    • pp.70-73
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    • 2011
  • Controlling the exterior and interior noise emission has become an important issue in the research and development of high speed trains. As the operating speed of the train increases, the noise emission characteristics are expected to deviate from that of the existing trains due to several changes in the basic train layout. For train speed in excess of 350 km/h in particular, the aerodynamic noise component starts to exceed the structure-borne noise component, and even an incremental speed increase is accompanied by a rapid elevation in the noise level. The present study presents an engineering approach for predicting the aerodynamic noise level at the design stage for high speed trains. The experimental noise measurements from test run of Korean high speed train under development are presented as a partial validation of the proposed approach. While the overall aerodynamic noise can be cast in a single power law relationship against the train speed, different parts of the train show power law relationships unique to each component.

U sing Artificial Intelligence in the Configuration Design of a High-Speed Train (인공신경망을 이용한 고속철도의 최고속도 예측과 구성설계)

  • 이장용;한순흥
    • Korean Journal of Computational Design and Engineering
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    • v.8 no.4
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    • pp.222-230
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    • 2003
  • Artificial intelligence has been used in the configuration design stage of high-speed train. The traction system of a high-speed train is composed of transformers, motor blocks, and traction motors of which locations and number in the trainset should be determined in the early stage of the train conceptual design. Components of the traction system are heavy parts in the train, so it gives strong influence to the top speeds and overall train configuration of high-speed trains. Top speeds have been predicted using the neural network with the associated data of the traction system. The neural networks have been learned with data sets of many commercially operated high-speed trains, and the predicted results have been compared with the actual values. The configuration design of the train set of a high-speed train determines the basic specification of the train and layout of the traction system. The neural networks is a useful design tool when there is not sufficient data for the configuration design and we need to use the existing data of other train for the prediction of trainset in development.