• Title/Summary/Keyword: AGT(Automated Guideway Transit)

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Carbody basic design for rubber tired AGT (고무차륜 경량전철의 차체 기본설계)

  • 이호용;홍재성;정종덕;이관섭
    • Journal of the Korean Society for Railway
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    • v.3 no.3
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    • pp.161-169
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    • 2000
  • AGT(Automated Guide-way Transit System) was introduced to satisfy the every increasing need for improved urban transportation. The AGT system is classified as medium distance and demand capacity mass transit being introduced for such area with inadequate passenger demand for railway construction but excessive demand for bus service. To decrease initial investment cost it is important that we have to secure the technology system of Light Rail Transit for Korea environment. By utilizing the finite element analysis, the result in this paper is enough to satisfy the strength whish is required. Also for the purpose of safety, it is decided the thickness and frame structure of the undeframe section through the analysis. It is known that carbody is no problem for required design conditions.

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A Design of the Carbody on the Korean Rubber Tired AGT (한국형 고무차륜 AGT차량 차체 기본 설계)

  • 한석윤;정종덕;김연수;이호용;박성혁;최출헌
    • Proceedings of the KSR Conference
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    • 2000.11a
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    • pp.265-270
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    • 2000
  • The carbody of the Korean Rubber Tired AGT is small size and light weight comparing to existing electric railcars. For this reasons, car shape and arrangement of major equipments are limited. AGT is newly adopted mass transportation system in Korea. Therfore, it should be desined to appeal to passengers and create new passenger demand. To achieve this goal, the design concept of carbody is to be new design to coincide with passengers emotions. In this regard, we tried to meet this trends through manufacturing of scaled models and being

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The Structural and Fatigue Analysis for the Bogie Frame of the Rubber Wheel AGT (고무차륜형 AGT 주행장치의 구조 및 피로해석)

  • 유형선;권혁수;윤성호
    • Journal of the Korean Society for Railway
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    • v.2 no.2
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    • pp.31-38
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    • 1999
  • Two representative types of the AGT (Automated Guideway Transit) system, which are bogie and steering types, are available for the side-guided system. Each system primarily consists of the bogie frame, suspensions, wheelsets and axles, braking system and transmission system. Among these components, the bogie frame is one of the most significant components subjected to the whole vehicle and passenger loads. This paper describes structural analyses and associated fatigue analyses for each bogie frame depending on the various loading conditions on a basis of the railway vehicle code UIC 515-4. Subsequently, comparisons are made between those two types to estimate which type is more reliable in terms of strength and fatigue. It is observed that the bogie type is a little advantageous over the steering one from the strength analysis. However, the two types are found to be in a reliable range of fatigue even though a realistic fatigue load case is further carried out. In addition, an optimal size of thickness is suggested for designs of the bogie frame.

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An Experimental Study on Traction System of Rubber Tired AGT (고무차륜 경량전철 추진장치 시험)

  • 이병송;정락교;조홍식;정상기;김진선
    • Proceedings of the KSR Conference
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    • 2002.10a
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    • pp.580-584
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    • 2002
  • This paper proposes an experimental study on the traction system of rubber tired AGT (Automated Guideway Transit). IGBT VVVF inverter is developed for 1C2M propulsion system of AGT, and it consists of inverter stack, gate control unit, control unit, and interface unit. The combination test was carried out to prove the performance of inverter, and test results show that the developed inverter is excellent.

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The Structural and Frequency Response Analysis for the Bogie of the Rubber Wheel-type AGT (고무차륜형식 경전철(AGT) 대차의 구조해석 및 주파수 응답해석)

  • 변상윤;유형선;윤성호
    • Proceedings of the KSR Conference
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    • 1999.11a
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    • pp.558-565
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    • 1999
  • Rubber wheel-type AGT has two major kinds of bogie; one is the bogie type and the other and passenger loads. This paper deals with the statics analysis for two types of bogie frame subjected to combined external forces, as well as independent ones specified in UIC 515-4. Furthermore, the dynamics analysis is performed under vibrational loading conditions so as to compare dynamic characteristics, Numerical results by using commercial packages, Ⅰ-DEAS and NASTRAN show that maximum stresses do not exceed the yielding level of material used for both bogies. From an overall viewpoint of strength, the bogie type turns out to be superior to the steering type except the case of a lateral loading. It is also observed that the steering type shows a be stiffened. It is strongly anticipated that vibrational fatigue analysis should be carried out under realistic loading conditions closely matching to situations such as running surface and lateral clearances along the guideway.

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A study of evaluation reliability growth for Korea-Automated Guideway Transit system (한국형경량전철시스템(K-AGT) 신뢰성 성장 평가에 관한 연구)

  • Han Seok-Youn;Lee Ahn-Ho;Ha Chen-Soo;Lee Ho-Yong
    • Journal of the Korean Society for Railway
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    • v.8 no.6 s.31
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    • pp.597-601
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    • 2005
  • Korea Railroad Research Institute(KRRI) developed the Driverless Rubber Tired Korea-AGT(Model: K-AGT) from 1999 to 2004. We have finished the safety and performance tests of K-AGT. Data obtained from this testing can be used to evaluate the growth of reliability. The most widely used traditional growth tracking model is included as IEC International standard. With the tracking model all corrective actions are incorporated during test, called test-fix-test. In the test-fix-test strategy problem modes are found during testing and corrective actions for these problems are incorporated during testing. In this paper, we demonstrated reliability analysis using growth model of driverless rubber tired K-AGT system to prove reliability of development system. Therefore, we introduce the well-known NHPP model and analyze a reliability growth using ReliaSoft's RGA software.

Application for AGT Test Line with Light Rail Turnout System & Guideway (고무차륜용 경량전철 분기기 및 안내궤도의 시험선 적용)

  • Park June-Teak;Lee Joong-Su;Yun Byung-Hyun;Park Yong-Gul;Lee An-Ho;Seong Taek-Hyong
    • Proceedings of the KSR Conference
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    • 2004.10a
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    • pp.854-861
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    • 2004
  • LRT(Light Rail Transit System) is devided into steel-wheel train, LIM and rubber tired AGT(Automated Guide-way Transit System) The main features of LRT are low construction cost, low space, low noise, Environment-friendly, fastly, low maintenance cost. it's a civil transit transfer system of new generation became popular advanced nation. In this study, the beginning designed manufactureing rubber tired AGT turnout and guide-way system for the field application. We hope reliability for the system shall home production of turnout and guide-way

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A Development of the Third Rail Current Collecting Shoegear for the Light Rail Transit (경량전철 차량용 제3궤조 집전장치의 개발)

  • 정락교;김연수;박성혁;이병송;최규형
    • Journal of the Korean Society for Railway
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    • v.3 no.4
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    • pp.185-193
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    • 2000
  • In general, a third rail current collecting shoegear is widely used in the light rail transit system since it is more efficient and economical than an overhead pantograph. Therefore, its specification is prescribed in the Korean standard specifications for the light rail transit for its applications. This paper describes the development of the third rail current collecting shoegears which is suitable to Korean situation and satisfactory to the Korean standard specifications. Two types are developed for the steel wheel and the rubber tyred AGT system, and various experiments are executed. It is found that performance of the third rail current collecting shoegear developed is proved acceptable.

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Train Performance Characteristics of Korean Rubber-Tired AGT System by TPS (TPS를 이용한 한국형 고무차륜경량전철(K-AGT)의 성능특성 분석)

  • Lee Dong-Hyong;Goo Dong-Hoe
    • Proceedings of the KSR Conference
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    • 2005.11a
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    • pp.799-804
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    • 2005
  • In this work, the characteristics of train performance of Korean rubber-tired AGT system(K-AGT) are evaluated by using TPS(Train Performance Simulation) and these results are compared to those of other LRT(Light Rail Transit) systems. The performance characteristics of K-AGT was analyzed by comparing the scheduled speed and the energy consumption in case of station interval change and rail track condition change in, the scheduled construction line. In the scheduled construction line, scheduled speed of K-AGT was no difference with other systems and energy consumption was less than other LRT's. In case station intervals are increased, scheduled speed of K-AGT shows similar increasing rate and in curved and graded track conditions K-AGT has no difference in scheduled speed with other systems. As a simulation result by track condition change, when the track which is smaller than curved line of 250m dominates more than $50\%$ in whole track, K-AGT is similar to other systems to the point of scheduled speed and there is advantage in energy consumption.

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A Study on the Construction of Test Track for Automated Guideway Transit (경량전철 시험선 구축에 관한 연구)

  • 정종덕;이안호;한석윤
    • Proceedings of the KSR Conference
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    • 2000.05a
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    • pp.447-454
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    • 2000
  • As the AGT system has never operated in Korea, the construction of test track is essential to the acquisition of safety for the passengers. However, the test track is a synthetic system including vehicle, power system, signalling, track etc, several factors must be considered. In this paper, we suggest the general guideline for the test track of AGT system and test items on test track through the investigation of leading test facilities in the world. Through continuous study and investigation, we finally will build the test track to verify the reliability requirements between the train and infrastructures

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