• 제목, 요약, 키워드: Railway vehicle

검색결과 1,516건 처리시간 0.049초

도시형 자기부상열차에 대한 철도안전법과 도시철도안전법의 충돌안전기준 적용의 비교 연구 (Comparative Study on Application of Korean Railway Safety Law and Urban Transit Safety Law to Urban Maglev Vehicle in Crashworthiness Regulations)

  • 이현철;구정서
    • 한국철도학회:학술대회논문집
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    • pp.748-754
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    • 2008
  • This paper studied on the application of Korean Railway Safety Law and Urban Transit Safety Law in Crashworthiness Regulations to the urban maglev vehicle of KIMM. The crashworthiness regulations for urban transit vehicle should be satisfied to the urban maglev vehicles according to crash analysis results using the explicit finite element method. However, according to its numerical results, the crashworthiness regulations of Korean Railway Safety Law were partially satisfied except the coupling and shunting condition. When a commercial urban maglev vehicle is developed in the near future, the crashworthiness regulations of Korean Railway Safety Law should be considered and satisfied during its structural design stage in some details

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철도차량 능동이차현가장치의 동적 성능 해석 (Dynamic Performance Analysis of an Active Secondary Suspension for a Railway Vehicle)

  • 박준혁;신유정;허현무;유원희
    • 한국소음진동공학회:학술대회논문집
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    • pp.854-855
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    • 2011
  • Active suspension technology of railway vehicles has received attention as the way to replace the current passive suspension. This paper deals with the dynamic performance of an active suspension system for a railway vehicle. To verify performance of an active suspension, the dynamic performance of the railway vehicle with active suspension system analyzed and compared with conventional suspension system by using the VI-rail program.

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철도차량 2 차 횡댐퍼 및 궤도특성에 따른 차체 횡변위 변화 연구 (Carbody Lateral Displacement of Railway Vehicle According to 2nd Lateral Damper and Track Characteristics)

  • 유원희;신유정;허현무;박준혁
    • 한국소음진동공학회:학술대회논문집
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    • pp.722-728
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    • 2012
  • In railway vehicle, riding comfort depends mainly on the secondary lateral damper and track condition. When the damping force of lateral damper becomes abnormal condition or the track condition is worse, the running stability and ride comfort of the railway vehicles go down. In addition, the lateral motion of carbody is increased. Therefore, the lateral motion of carbody is reviewed carefully by considering lateral damping force and track condition of the railway line in design stage. In this study, the lateral displacement of carbody was studied in accordance with lateral damping force and track condition. The target vehicle is EMU for subway line.

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Comparison Study of Sound Transmission Loss in High Speed Train

  • Kim, Tae-Min;Kim, Jeung-Tae
    • International Journal of Railway
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    • v.4 no.1
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    • pp.19-27
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    • 2011
  • Many studies for improving the railway vehicle's performance and comfort such as speed, weight and noise are currently in progress. Improving the structural characteristics of the vehicle for greater noise insulation is considered important for reducing disturbance due to noise, but measuring transmission loss entails large costs. This study explores an alternative method for estimating and measuring the railway vehicle's transmission loss that involves on applying the numerical analysis coupled with scaled reverberation chamber measurement. The transmission loss measurement using scaled reverberation chamber was performed after the compensation value was found through 1mm thickness(1t) specimen. For numerical analysis, a commercially available acoustics solver VA ONE was used. The proposed method is found to lead to transmission loss measurement comparable to the measurements based on large-scale reverberation chamber. Thus, it can be argued that a reliable method has been developed for measuring railway vehicle's transmission loss.

연료전지 발전시스템을 이용한 축소형 철도차량의 운전곡선 추종에 따른 추진제어장치 특성 고찰 (A Study on Propulsion Control Device Characteristics of Small-scale Electric Railway Vehicle according to Driving Curve Tracking using Fuel Cell Generation System)

  • 정노건;창상훈;김재문
    • 전기학회논문지
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    • v.64 no.12
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    • pp.1804-1809
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    • 2015
  • The study in railway system to apply a fuel cell system with high efficiency and mobility than other renewable energy is being actively conducted. It is needed a analysis on load characteristics and control method of rolling stock in order to apply to rolling stock. This paper presents study on control small-scale prototype power converter electric railway vehicle using fuel cell generation system. Experiment is conducted through real fuel cell generation system and reference speed applying the driving curve of the actual electric railway vehicle was applied. Also, output voltage of boost converter is controlled considering characteristic of fuel cell. And it was confirmed characteristic according to powering and regeneration of inverter.

철도차량 고무 현가부품의 내한성 시험기준연구 (A Study on the Test Standards at Low Temperature of Rubber Suspension Components of Railway Vehicle)

  • 윤태호;장승호;최병일;이찬우;나희승
    • 대한기계학회:학술대회논문집
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    • pp.372-376
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    • 2004
  • In this paper, the standard test methods at low temperature of rubber suspension components of railway vehicle are investigated and reviewed. In order to connect the TKR(Trans-Korean Railway)-TSR(Trans-Siberian Railway), it is necessary to evaluate the performance of rubber suspenion components of railway vehicle. In the current Korean Standard, the test method at low temperature of railway vehilce components and the test method of rubber bellows of air spring are specified. But, the specified test temperature is higher than the the operating temperature of TSR railway. So, the in-depth research for the test method and performance evaluation technique of rubber suspension component at low temperature is necessary and current KS code should be adjusted.

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철도차량 충돌 해석을 위한 축소모델링 기법 연구 (Scale Modeling Technique for the Crash Analysis of Railway Vehicle Structure)

  • 김범진;허승진
    • 한국철도학회논문집
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    • v.5 no.4
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    • pp.231-236
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    • 2002
  • Todays, crash safety requirements of the railway vehicle structures become important design criterion according to the increased driving speed and the lightweight construction. Although the crash analysis using computer simulation can be effectively applied to predict the crash performance of the railway vehicles in the early design stage, the optimized design w.r.t the crash safety could be realized by the crash tests with actual prototype vehicles. However, it is very expensive and time-consuming task to perform the crash test of the railway vehicles. As a measure to cope with the problem, in this paper, the scale modeling technique is suggested and experimentally verified to predict the impact energy absorption characteristics of full scale model of aluminum extrusions sub-structures and the high-speed railway vehicle structure.

유지보수를 고려한 철도차량 운용계획에 관한 연구 (A Study on the Rolling Stock Scheduling considering maintenance activities in Railway)

  • 김동회;홍순흠
    • 한국철도학회:학술대회논문집
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    • pp.280-285
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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 trainset vehicles become important, In this paper, we introduce the conceptional model for trainset restoring problem and developed heuristic algorithm.

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철도차량의 Roll 특성에 관한 연구 (A Study for Roll characteristic of Railway Vehicle)

  • 양희주;이강운;박길배;성재호
    • 한국철도학회:학술대회논문집
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    • pp.1184-1189
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    • 2006
  • Railway vehicle have three translational motions-longitudinal, vertical and lateral, and three rotational motions-rolling, pitching and yawing caused by track irregularity, wheel and rail characteristic, dynamic behaviors etc. The rolling motion in vehicle mainly happens in cases of the vehicles stationary and running on canted track. When the vehicle positioned in stationary on canted track, vehicle is inclined toward inside of installed cant due to gravity component. When the vehicle has running on a track with cant deficiency, vehicle is inclined toward outside of installed cant due to centrifugal force. The roll coefficient(s) is defined as the ratio between the angle of inclination of the vehicle($\eta$) and the angle of the rail level($\alpha$). This paper has noted the test method, test result and analysis result to calculate the roll coefficient according to UIC505-5, international standard

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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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