• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2005년도 춘계학술대회논문집
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• pp.440-443
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• 2005

To improve the riding comfort of high speed trains, it needs active suspension system for railway more and more. In Japan, the high speed train, Shinkansen has adopted semi active suspension system and now it is running in the main trunk. In Korea, Koeran Train Express (KTX) is opened to commercial traffic and Korea High speed Railway (HSR350) is being developed. So the vibration control of the high speed train becomes important. In this paper, we introduce technical skill of Japanese semi active suspension Shinkansen to be helpful to the related researcher.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.2306-2309
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• 2011

With the opening of 1st phase and 2nd phase in Gyeongbu High Speed Line, KTX(The Korea Train Express) and Sancheon(2nd generation of High Speed Train) are operating commercially on entire line. Gyeongbu High Speed Line can be separated as several sections. In this entire line, a few types of train has operating by it's own pattern. However, commercial speed of the line compared with the maximum speed of Train is rather slow. Through this study, I found the reason of the slow speed on the Catenary system and suggested a solution.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2005년도 춘계학술대회 논문집
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• pp.393-397
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• 2005

Since the braking system of rolling stock is directly linked to it's safety, ensuring reliability of braking system and evaluation of performance of it are very important. To develope the performance of braking system, it is required advanced technology and gradually various factors in the field test result. This study is designed to analyze the air pressure control about braking force in rolling stock, also, by comparing braking force of high speed railway with that of high speed train. This paper suggests to establish a method of computation of braking force form the air pressure control. And The high speed train researches into patterns of braking system such as the train of speed up and introduction of electric and pneumatic braking system.

• 센서학회지
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• 제13권4호
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• pp.270-276
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• 2004

In this paper, we introduce the software and hardware of the measuring system for on-line test and performances evaluation of traction and braking in KTX(Korea Train Express). The measuring system focuses on the verification of the performance and acquisition of test data. The hardware is connected many kinds of sensors, such as speed sensor, thermocouple. The software controls the hardware of the measuring system, performs the analysis and calculation of measurement data and acts as interface between users and the hardware. For this purpose, three programs, such as a measuring program, a back-up program and a analysis program, have developed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 춘계학술대회 논문집
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• pp.479-487
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• 2004

The Korean railroad has developed as a foundation of nation's nucleus network. Nowadays Korea has entered into a new era because of the operation of KTX(Korea Train Express). As an introduction of KTX, the Korean railroad system has advanced Korean style high speed rail(HSR-350x), which is based on transfer and own technology. It is expected that the Korean rail road system has the leading design and production ability. Korea is planning to develop its own high speed railroad system until 2007. So the present task is to initiate a strategic export method for the development and value-added of Korean high speed railroad system. Furthermore this study proposes the administrative and technical policy for the basic technical research and creativeness predominance.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.1744-1759
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• 2007

This study intended to identify the problems of the railroad which are raised as one of the 21C next-generation but to define the direction for the absence of the national policy and examine the competitiveness of railway transportation which is a Green Network with low environmental destruction and high energy efficiency as the continuable means of transportation for the 21st century with superiority to energy crisis caused by high oil price, conclusion of the Kyoto Protocol for worsened air pollution, and reduced cost of traffic jam.

• 한국철도학회논문집
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• 제11권2호
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• pp.115-119
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• 2008

고속선에서의 궤도틀림은 차량의 주행 안정성 및 소음, 진동 등에 큰 영향을 끼치는 요소이다. 차량의 흔들림을 억제하고 효율적인 선로의 점검 및 관리를 위해서는 정확하고, 고속의 궤도검측기구가 요구되고 있는 실정이다. 본 논문에서는 국내 기술로 제작된 한국형고속열차에 고속 궤도검측시스템을 구축하고, 시운전 시험을 통하여 검측된 궤도 검측 결과를 검토하고자 한다.

• 대한토목학회논문집
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• 제32권2D호
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• pp.175-182
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• 2012

최근 철도정책이 KTX 개통 이후 속도 향상, 편의성 개선, 역 중심의 공간창출 등 이용자 서비스 중심으로 전환하는 중에 있다. 이는 철도의 차별화 서비스 전략으로 녹색교통수단의 입지를 강화하고자 하는 데 있다. 이러한 철도 유틸리티 개선 노력에도 불구하고 국민의 자동차 의존적 교통행동양식 때문에 자동차에서 철도로의 전환에 한계가 있다. 본 논문에서는 수도권 통근자 대상으로 자동차 의존성을 분석하였다. 자동차 의존성 분석결과 환경의식은 대중교통만족도와 함께 자동차 의존성에 영향을 미치는 중요한 변수로 작용하였고, 이는 철도 서비스 개선과 함께 환경의식을 이용한 사회마케팅이 자동차의존성을 약화시킬 수 있는 정책대안이 될 수 있다 것을 확인하였다.

• 대한토목학회논문집
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• 제28권4D호
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• pp.533-538
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• 2008

KTX(Korea Train Express)의 도입은 우리나라 교통시스템 전반에 획기적인 변화를 가져왔다. 특히 고속철도역은 단순한 철도역이 아닌 통합적인 대중교통 환승센터로 그 의미가 확장되고 있다. 그러나 그동안 고속철도역에 대한 평가가 제대로 이루어지지 못한 것이 사실이다. 고속철도역의 평가는 출발지에서 고속철도역까지의 연계와 내부의 환승 서비스에 대한 평가가 매우 중요하다. 본 연구에서는 고속철도역 내부 환승시설의 서비스 평가를 위하여 표준화된 지표를 개발하였다. 서비스 평가지표는 환승시설의 서비스수준(LOS), 시설배치의 적정성, 정보수준으로 이루어진다. 서비스 평가지표를 활용하여 고속철도역 환승시설에 대한 평가지표별 평가 기준과 방법론을 제시하였다. 최종적으로, 현재 이용 중인 전국의 7개 고속철도역을 평가해 보았다.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.115-122
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• 2007

The noises which occurs from the rolling stock can be divided largely into three classes and they are Rolling noise, Traction noise and Aerodynamic noise. In the event of braking the rolling stock which enter into the station, Brake shoes cause Fraction noise (braking noise) and excessive braking noise makes passengers and operators uncomfortable. This study is to reduce squeal noise and minimize displeasure by measuring the braking noise and defining the major noise sources and noise mechanism