• Title, Summary, Keyword: 고속철도

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Tunnel Blast Design for Earthquake Accelerometer Installed Rapid Transit Railroads (지진가속도계가 설치된 고속철도 터널 인근의 발파설계)

  • Lee, Jong-Woo;Kim, Nam-Soo;Jung, Sang-Jun;Park, Chi-Myeon
    • Explosives and Blasting
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    • v.32 no.1
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    • pp.18-22
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    • 2014
  • KoRail establishes "Guideline for earthquake acceleration measuring instrument and operation." and applies the management of the rapid transit railroad. KoRail manages the trains by train driving patterns subjected to the train operating know-how for the safety against the earthquake hazards. This paper introduces the case studies on bench blast and tunnel blast designs considering a rapid transit railroad.

The Study of Tilting Pantograph of Tilting Train for Improvement Catenary Control (가선추종성 향상을 위한 틸팅차량용 틸팅판토그라프 기술연구)

  • Lee, Su-Gil;Han, Seong-Ho;Han, Young-Jae;Lee, Woo-Dong;Song, Yong-Soo
    • Proceedings of the KIEE Conference
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    • pp.278-280
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    • 2004
  • 판토그라프는 전차선(catenary)으로부터의 전류를 차량에 전달하는 장치로서 전동차 지붕 위에 설치되어 있다. 판토그라프의 설계 목표는 고속 및 다양한 환경 조건하에서 연속적이고 일정한 량의 전류를 차량에 전달하도록 하는 것이다. 열차가 고속화될수록 전류의 흐름이 중단되는 이선, 접촉선과 판토그라프 집전판의 마모, 공력 소음 등이 큰 문제로 대두되며, 이들 문제들이 고속용 판토그라프의 설계 기술에서 중요시되고 있다. 특히 이선은 동력 전달이 중단될 뿐만 아니라 이선시에 발생하는 아크로 인한 마모 증대, 통신 장해를 일으킨다. 유럽과 일렬에서는 그러한 문제를 인식하고 고속용 판토그라프에 대한 연구를 활발히 진행하고 있다. 또한 저속전철이나 고속전철을 운행하는 나라에서는 기존의 가선계를 그대로 이용하면서 고속화를 달성하기 위하여 기존 가선계에 대한 최적의 판토그라프 설계에 노력을 기울이고 있다. 본 논문에서는 국내 기존선 고속화에 필요한 최고속도 180km/h급 틸팅차량시스템의 핵심 구성요소인 판토그라프 제어기술에 대한 연구를 통하여 보다 안전한 틸팅차량용 판토그프사양 개발하는데 목적이 있다.

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Design of System Engineering Database toy KHSR (고속전철 시스템엔지니어링 전산체계 구축)

  • 황희수;이태형;전용렬;현승호;정흥채
    • Proceedings of the KSR Conference
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    • pp.121-129
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    • 1999
  • This paper will describe the design of database for system engineering of High Speed Railway Systems, focusing on tile ability to capture a full thread of traceability, from tile inception of a system requirement, to the test results that validate that the designed system meets criteria defined by the requirement. The database includes data models for requirement, function, component, work, work process, resource, etc.. These data models are utilized for tile efficient management of data related system design, development work, and validation.

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Analysis of the internal noise level according to the speed for the Korean High Speed Train (한국형 고속전철 개발열차의 차량별 속도에 따른 실내 소음 특성 분석)

  • Park Chun-Soo;Kim Ki-Hwan;Seo Sung-Il;Lee Tae-Hyung;Park Chan-Kyung
    • Proceedings of the KSR Conference
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    • pp.381-386
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    • 2004
  • In order to develop a high speed train, various conditions have been considered. Internal noise level of cabins is an important one. In this study, The specification of the interior noise level for KHST(Korean High Speed Train) has been adopted the same level of KTX-spec. In this paper, the interior noise levels of KHST are measured and analysed through the speed and other conditions. According to the speed, the level of internal noise(driver's room(PC2), motorized trailer(TM1) and trailer car(TT2)) is compared. The results of measuring data show that the interior noise levels of KHST are good. And noise levels of this paper are useful in the decision of noise specification.

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Characteristics of Pressure Fluctuation and internal noise level for Korean High Speed Train (한국형 고속열차의 최고속도에서 압력변동 하중과 실내소음 특성 분석)

  • Park Choon-Soo;Choi Sung-hoon;Lee The-hyung;Mok Jin-young;Kim Ki-Hwan
    • Proceedings of the KSR Conference
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    • pp.338-343
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    • 2005
  • The Korean high speed train(KHST), developed since 1996, is presently undergoing commissioning tests on the high-speed track as well as on the conventional track since 2002. The purpose of the commissioning test is twofold: first to verify the performance of the train-set and equipments, and to demonstrate system reliability. Last December, KHST has reached the maximum speed of 350km/h and a number of data proving the performance of the train has been acquired. Among the data noise level and pressure variation in a cabin are important factors effecting passenger's comfort. Discussed in this paper are interior noise and pressure variation when the train passes tunnels during the 350km/h test.

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Development of realtime high-speed train monitoring system using wireless communications (무선통신을 이용한 실시간 고속열차 모니터링 시스템 개발)

  • Lee, Tae-Hyung;Park, Choon-Soo;Han, Young-Jae;Choi, Seong-Hoon;Kim, Seog-Won
    • Proceedings of the KSR Conference
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    • pp.1691-1693
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    • 2007
  • Establishing the realtime remote monitoring system of the moving test train is the important issue for the railway systems that provide comfort travel to the passengers. But it is not easy to transmit train's test data to remote site because the train runs tunnels. In this paper, we introduce the realtime monitoring system using wireless communication system which is installed in the test train. This system can provide both correct positions of unstable track and train's running status such as speed, kilopost and acceleration.

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A Study of the Current Collection Characteristics Measurement Methodology for a High-Speed Train (고속열차 전기적 이선 특성 측정 방안 연구)

  • Cho, Hong-Shik;Han, In-Su;Lee, Tae-Hyung;Kim, Seok-Won;Kim, Young-Guk
    • Proceedings of the KSR Conference
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    • pp.3052-3058
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    • 2011
  • A high-speed train is the system that the electric power is supplied through the overhead contact line and drives motors. In this case that the de-wiring beteen the overhead contact line and the pantograph of a high-speed train, the occasion that smooth power supply is not accomplished occurs sometimes. If the de-wiring occurs, the arc discharge may damage the overhead contact line or the pantograph, and the falling-off in power quality may cause the damage and malfunctioning of motor block. This paper presents the methodology that the arc discharge by de-wring between overhead line and pantograph is discriminated through measuring the PT and CT in the vehicle, and measures the current collection characteristics for a high speed train.

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Reliability Assessment of Traction System of Korean High Speed Train (한국형 고속열차 추진시스템의 신뢰성 평가)

  • Seo Sung-Il;Park Choon-Soo;Han Young-Jae;Lee Tae-Hyung;Kim Ki-Hwan
    • Journal of the Korean Society for Railway
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    • v.8 no.5
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    • pp.434-438
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    • 2005
  • In this paper, as the first step to assess and enhance the reliability of Korea High Speed Train, an electric traction system is selected and reliability analysis is carried out. The electric traction system is classified into subsystems and functional block diagrams and reliability block diagrams are drawn. Expressions for evaluating the reliability are derived and Mean Kilometer Between Service Failure is calculated using the trial track test results. The calculation results show reliability growth of the proposed system.

Reliability Growth Assessment for the Rolling Stock System of the Korea High-Speed Train (한국형고속열차 차량시스템의 신뢰성 성장 평가)

  • Park, Chan-Kyung;Seo, Sung-Il;Lee, Tae-Hyung;Kim, Ki-Hwan;Choi, Sung-Hoon
    • Journal of the Korean Society for Railway
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    • v.9 no.5
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    • pp.606-611
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    • 2006
  • This paper presents a procedure and an analysis method to evaluate reliability of the Korea high-speed train. The rolling stock system is divided into 6 sub-systems and each subsystem is classified into sub-assemblies. Functional analysis has been conducted to draw reliability block diagrams for the sub-systems. First, failure rates has been calculated for each sub-assembly from the failure data obtained during commissioning tests. Then a reliability block diagram is used to evaluate the MKBF(Mean Kilometers Before Failure) of the sub-systems. Activities to increase reliability have been carried out throughout the test runs and analysis results show that the reliability of the rolling stock system is gradually growing in time.