• Journal of the Korean Society for Railway
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• v.3 no.2
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• pp.28-36
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• 2000

도시철도라 함은 도시교통의 원활한 소통을 위하여 도시교통권역에서 건설·운영하는 철도ㆍ모노레일 등 궤도에 의한 교통시설 및 교통수단을 말한다. 지금까지 차량성능시험은 제작사와 운영체가 자체적으로 시행해 왔으나 신조 제작차량의 잦은 고장과 사고발생으로 인하여 교통불편을 초래하고 있어, 국가에서는 국민의 생명보호와 안전사고예방을 위하여 제도적으로 차량이 영업운행 전에 성능시험을 거치도록 한 것이다. 이에 도시철도차량성능시험에 대해서 간략히 설명하며, 관련 규정을 소개한다.(중략)

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.70-70
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• 2004

국내 도시철도차량의 운행이 지속되면서 차량 사고가 발생함에 따라 차량복구의 안전성 확보와 복구보수비용 절감 등에 기여할 수 있는 안전진단 수행체계의 법제화를 통한 도시철도차량의 안전운행 확보가 절실하다. 그러므로 도시철도차량 안전진단은 차량을 복구하기 전 복구 가능여부를 확인하기 위하여 상태평가, 안전성평가 등을 실시하는 것이다.(중략)

• KIPE Magazine
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• v.14 no.5
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• pp.36-41
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• 2009

전기철도차량에는 대용량 추진제어 컨버터/인버터부터 소용량 스위칭 모드 전원장치에 이르기까지 철도차량의 운행에 필요한 각종 동력 및 전력을 공급하기 위한 여러 가지 형태의 전력변환장치가 사용되고 있다. 그 중 가장 대표적인 전력변환장치가 추진제어인버터와 보조전원장치이다. 전기철도차량의 성능평가는 전력변환장치의 성능평가라 할 수 있을 정도로 많은 비중을 전력변환장치가 차지하고 있다. 한국철도기술연구원은 국토해양부로부터 지정받은 성능시험기관으로서 국내 도시철도 및 철도차량의 성능평가를 수행하고 있다. 성능시험은 차량의 제작공정에 따라 부품시험, 구성품시험, 완성차시험, 예비주행 및 본선시운전의 각 단계별로 실시하고 그 시험기준으로 도시철도차량의 성능시험에관한기준 및 철도차량성능시험 시행지침이 적용된다. 성능시험기준을 근간으로 추진제어인버터와 보조전원장치의 성능시험 대한 시험항목과 시험방법에 대하여 소개한다.

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.540-545
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• 2010

As the urban railroad durability period law has revised on march 19, 2009, the life cycle of urban railroad cars has lengthened to 40 years for the longest period. It seems to be attributed to the development of railroad car making technique along with their durability being longer thanks to the quality improvement of their materials and parts. As the stability of urban railroad cars is directly linked to the safety of passengers, safety should be considered first, and more precise examination is necessary for endurance extension. Hereupon, the rolling stocks with their durability near expiration should get precise diagnosis following the revised "RDG for urban railroad cars" This study aims to suggest a diagnosis method for the institute and the urban railroad operating body which enforce the revised diagnosis, through the case of Busan transportation corporation which firstly started the revised diagnosis after the durability related law has been revised.

• Proceedings of the KSR Conference
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• 2002.10b
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• pp.793-800
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• 2002

표준전동차는 1995 년 9 월부터 2001 년 12 월까지 수행된 도시철도차량 표준화 국산화사업의 일환으로 도시철도차량 표준화와 차량핵심장치의 국산화를 위해 개발되었으며, 한국의 표준이 되는 전동차이다. 도시철도차량의 표준사양, 성능시험기준, 품질인증기준, 안전기준, 정밀진단기준 등 제반 표준화기준에 의거하여 표준전동차가 설계, 제작되었으며, 수입에 의존하던 추진장치와 차량제어장치를 국산화하여 장착하였다. 제작된 핵심장치 및 표준전동차에 대해 구성품시험, 완성차시험, 본선시운전시험, 실용화를 위한 10 만 Km 내구도주행시험 등 각종 성능시험이 수행되었으며, 전동차 국산화율이 60%에서 95%로 향상되었다. 본 논문은 표준전동차의 개발경위, 핵심장치 국산화 내용, 각종 시험결과 등 전반적인 개발내용을 기술하고 있다.

• Journal of the Korean Society for Railway
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• v.16 no.6
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• pp.447-453
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• 2013

Since PSDs(Platform Screen Doors) are set up at many subway stations, their design related to safety has become gradually important. In particular, the interference check with a running railway vehicle is the most important of performance indices because the collision between PSDs and vehicles can be dangerous for passengers in the car and on platforms. When the train comes into a station with a curvature, the passenger car has a large translational and rotational motion and the displacement is enough for coming in contact with PSD. The performance is affected by many design parameters such as rail design parameters and vehicle velocity. This study proposes dynamic analysis models for railway vehicles and rails. Some parameters were also considered in the models to determine their influence on the performance.

• Journal of The Korean Society For Urban Railway
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• v.6 no.4
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• pp.299-307
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• 2018

Automatic announcement systems and emergency lights are necessary to prevent urban railway vehicles from accident, according to the emergency response guideline of domestic railroad. When emergency situation occurs, safety regulations and standards for urban railway vehicles specify that the emergency lights must be turn-on over 30 minutes as well as that the announcement should be provided by an attendant. However, as the current emergency systems use different units without a standard and system maintenance and management is not well performed, it is difficult to know the operation status. In this paper, modularized structures are given to standardize the emergency systems. The modularized structures analyzed from emergency scenarios of railway can substitute the existing broadcasting and lighting system. As a result, the optimized modular system considering cost and maintenance can be proposed by comparing all modularizations.

• Railway Journal
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• v.19 no.4
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• pp.57-62
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• 2016

• Journal of the Korean Society for Railway
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• v.16 no.3
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• pp.163-168
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• 2013

The maintenance of an urban transit vehicle accounts for 60-70% of total costs over its entire life cycle, so it is critical to reduce maintenance costs and extend the life times of urban transit EMUs (electric multiple units) through research. For these researches, the reliability and availability data management system was constructed through the case study of several industries in the domestic and international in the field of reliability centered maintenance system. And we created a system to manage reliability and availability data for use in urban-EMU maintenance. In this work, we identified the major functions needed to successfully develop the system. Here we report the successful development of a reliability and availability data management system for maintenance of urban transit vehicles.

• Proceedings of the KSR Conference
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• 2011.05a
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• pp.849-859
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• 2011

Before 2010, assignments proposed by government caused inconvenience of users(operation institutions & customers) as performing that National research organization suggested requirements from private organizations to special institutes, but now the institution of assignments is improving to reflect opinions from the present users. This is a study on methods for drawing a task of Rolling stock's core parts & enhancing of Urban Railway/Light Railway Transit. The definition of multiple stakeholders(local government, operation institution, research organization, academic world, the industrial world, etc.) related to rolling stock of urban railway/Light railway transit, experts in rolling stock and the application for designing of question items verified and designed through Delphi technique for objectivity, justness and fairness. Also, it is to draw a conclusion of assignments through a study on methods for drawing a task of Rolling stock's core parts & enhancing of Urban Railway/Light Railway Transit as sharing a process of assignments and integrating opinions of each stakeholder of urban railway/light railway transit.