• 제목, 요약, 키워드: Railway vehicle

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철도차량 유지보수 훈련용 추진제어장치 시뮬레이터 개발에 관한 연구 (A Study on the Development of Propulsion Control Simulator for Maintenance Training of Railway Vehicle)

  • 김보성;정노건;김재문
    • 전기학회논문지
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    • v.64 no.10
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    • pp.1528-1534
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    • 2015
  • This paper designed the railway vehicle running device with a proto-type for the railway vehicle maintenance training and developed a propulsion control device simulator equipped the imitation steering wheel. In addition, this paper applied a multi-thread technology in order to implement the staged fault and the propulsion control device protected operation test and an implementation of the failure that occur in actual rail vehicle and confirm the validity as the propulsion control device simulator for the maintenance training.

MR댐퍼를 이용한 철도 차량의 진동제어 및 조향성능 고찰 (Vibration Control and Steering Performance Evaluation of Railway Vehicle Using Magnetorheological Damper)

  • 하성훈;최승복;유원희
    • 한국소음진동공학회논문집
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    • v.18 no.5
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    • pp.524-532
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    • 2008
  • This paper presents yaw vibration control performances of railway vehicle featuring controllable magnetorheological damper. A cylindrical type of MR damper is devised and its damping force is evaluated by considering fluid resistance and MR effect. Design parameters are determined to achieve desired damping force level. The MR damper model is then incorporated with the governing equations of motion of the railway vehicle which includes vehicle body, bogie and wheel-set. Subsequently, computer simulation of vibration control via proportional-integral-derivative(PID) controller is performed using Matlab. Various control performances are demonstrated under external excitation by creep force between wheel and rail.

상사기법을 이용한 차량시뮬레이터 기초 설계 (Preliminary design of a scaled railway vehicle simulator)

  • 김홍찬;김정태;이희성;오세빈
    • 한국소음진동공학회:학술대회논문집
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    • pp.951-956
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    • 2008
  • The study is to develop a foundation design for a railway vehicle simulator using a scaled model. Although a scaled simulator is limited to manipulate the dynamics of a full-size railway vehicle, it has been known to have an advantage, since a scaled model could provide the fundamental dynamic behavior within a limited space of a laboratory facility and with a low operation cost while an experiment is conducted. This study is to propose a design strategy for a simulator so that a small scaled roller rig could be fabricated in a laboratory based on the design philosophy. The data obtained from the scale model is also experimentally investigated in conjunction with appropriate non-dimensional analysis so that the output results should be interpreted to the railway vehicle.

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고속철도차량의 유지보수계획 (Rolling Stock Maintenance Scheduling for High-Sneed Railway)

  • 김동희;홍순흠
    • 대한안전경영과학회:학술대회논문집
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    • pp.53-61
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    • 2003
  • The process of railway traffic planning is composed of several steps such as long - term, mid - term, short - term, and real - time plan. The planning of vehicle and manpower resources is a main research topic in tactical short - term planning step Railway vehicle is usually consisted of a power car, passenger/freight cars and human resource is composed of engine driver, cabin crew, ground personnel. So far , power car was main research target in railway vehicle scheduling problem. Recently according as the light electric railway or high - speed railway is introduced, the operational planning of train set vehicles become important . In this paper , we introduce the conceptional model for trainset restoring problem and developed heuristic algorithm.

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Traction System Characteristics of Railway Vehicle

  • Han, Young-Jae;Kim, Ki-Hwan;Seo, Sung-Il;Park, Chun-Su;Han, Seong-Ho;Kim, Young-Mo
    • 제어로봇시스템학회:학술대회논문집
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    • pp.1351-1354
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    • 2005
  • Recently, as the feasibility study shows that trans-Korea railway and trans-continental railway are advantageous, interest in high speed railway system is increasing. Because railway vehicle is environment-friendly and safe compared with airplane and ship, its market-sharing increases gradually. Korean High Speed Train has been developed by KRRI for last 7 years to satisfy the need. Korean High Speed Train (350km/h), composed of 2 power cars, 2 motorized car and 3 trailer cars, has been developed and is under trial test. To verify the design requirements for the functions and traction performances of the train, KRRI (Korea Railroad Research Institute) decided to evaluate traction performances of the train during trial test. For this purpose, torque, velocity, voltage and current must be measured. KRRI has developed a measurement system that can measure vast and various signals effectively. In this paper, we introduce traction performances of Korean High Speed Train. The traction measurement items are focused on the verification of motor block performances. Motor block consists of 2 motors. By this test, we verified traction performances of Korean High Speed Train

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도시철도 차량 차륜 플랜지의 마모패턴에 관한 연구 (A Study On Wear Pattern of Wheel Flange for Urban Railway Vehicle)

  • 노학락;맹희영;권석진
    • 한국철도학회:학술대회논문집
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    • pp.71-77
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    • 2007
  • The surface of railway wheel tread in wheel-rail system can not be free from wear because of various circumstance such as railway condition, maintenance condition, weather condition, characteristics of wheel surface's geometrical shape, and vehicle suspension's structural characteristics etc. Therefore, the research on wear reduction and maintenance method are very important to ensure the safety of railway vehicle, to improve car comfort and to decrease maintenance cost. In this study, the wear rates of railway wheel have been periodically measured in terms of the running distance of Electrical Multiple Unit which have been currently operated and the microstructure transformation of wheel tread using replication method have been performed. The results show that the relations between the flange wear and tread microstructure are depended on running distance and it will supply basic data on wheel maintenance.

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철도차량 이차현가장치 댐퍼 매개변수 변화에 따른 고유모드 특성에 대한 연구 (A Study on the Eigenmode Characteristics by Changing Damping Parameters of Secondary Suspension (Damper) on Railway Vehicles)

  • 신유정;유원희;박준혁;허현무
    • 한국정밀공학회지
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    • v.28 no.7
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    • pp.796-804
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    • 2011
  • Railway vehicles are capable of indicating several types of instability. This phenomenon, which is called hunting motion, is a self excited lateral oscillation that is caused by the running velocity of the vehicle and wheel frail interactive forces. The interactive forces act to change effectively the damping characteristics of railway vehicle systems. This paper will show the impact of instability on the transfer function behavior using damping characteristics of secondary suspension. The vehicle dynamics are modeled using a 17 degree of freedom considering linear wheel/rail contact. The paper deals with certain condition of the damper characteristics that one is about various damping coefficient and another is equipped damper direction.

철도차량 구조물의 TL 시험 평가 기법 (Evaluation Method of the Transmission Loss for Railway Vehicle Structures.)

  • 김운경;김정태
    • 한국철도학회:학술대회논문집
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    • pp.155-161
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    • 2001
  • In order to evaluate the sound transmission loss of a structure, a large reverberation room described by ISO is generally used. ISO test method is however for architectural structures, which is not properly implemented for small mechanical structures, such as rolling stocks. In this paper, evaluation procedure for railway vehicle structures has been proposed.

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레일 경좌 변화에 따른 곡선부 통과열차의 주행안전성 해석 (Running Safety Analysis of Railway Vehicle passing through Curve depending on Rail Inclination Change)

  • 김문기;엄범규;이희성
    • 한국소음진동공학회논문집
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    • v.23 no.3
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    • pp.199-208
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    • 2013
  • So far today, there is a speed limit by the radius of curve based on operation regulation in domestic railway, however a study for the maximum running speed at the curved section without any derailment would be necessary. The two major factors related to the running safety of railway vehicle are classified as the railway vehicle condition and the track condition. In terms of the rail inclination among many other factors, the determination of rail inclination within the possible limit is necessary for the geometrical structure of the optimum track. The disregard of the geometrical parameter related to the rail inclination may cause a serious problem to the running safety of railway vehicle. This study is focusing on the analyzing of running safety regard to the change of rail inclination among the many other parameters to improve derailment safety, so that there is an affection analysis of the running safety regard to the change of rail inclination in the ideal and geometric track condition. Also There is an affection analysis of the running safety regard to the simultaneous change of rail inclination and the running speed at the curved section. According to analysis results of running safety, In case that the left and right rail inclination are 1/40, the running safety of this condition defined than other conditions. Also, the rail inclination of conventional lines is 1/40, Therefore, the railway vehicle passing through curve is safe when the railway vehicle runs in conventional lines.

ADAMS/Rail과 ADAMS/Durability를 이용한 철도차량의 동응력 해석 (Dynamic stress analysis of the railway vehicle using ADAMS/Rail and ADAMS/Durability)

  • 조연호;이강운;박길배;최중호
    • 한국철도학회:학술대회논문집
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    • pp.573-578
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    • 2004
  • Rotem has chosen ADAMS/Rail as the next generation analysis tool, to improve the capability and accuracy of the analysis ability. The dynamic performances of the railway vehicle, which is designed and manufactured by Rotem, have been analyzed and simulated using ADAMS/Rail. In this paper, Dynamic stress of bogie frame on running track is analyzed and compared with the data of real vehicle test. It is performed using ADAMS/AutoFlex and ADAMS/Durability.

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