• Proceedings of the KSR Conference
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• 2001.10a
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• pp.223-228
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• 2001

In this paper, crashworthiness of the KHST carbodies is evaluated by numerical simulation under the SNCF accident scenario (collision against a movable rigid mass of 15 ton at 110 kph) and the scenario of train-to-train collision at 30 kph. The numerical results of the several simulations, such as the accident collided against a deformable dump truck of 15 tons at 110 kph, the driver's dummy analysis using the integrated analysis method, and the accident of train-to-train collision for the first three units at 30 kph, show good performances in the viewpoint of energy absorption and survival space.

• Proceedings of the KSR Conference
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• 2000.11a
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• pp.491-498
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• 2000

This study was carried out about the design and FEM analysis of articulated Trailer car with aluminum bodyshell for Korean High Speed Train of maximum operating speed of 350㎞/h. The integral design by extra-long extruded sections made possible through the use of aluminium alloys and continuous window shape with skin were adopted in the design of aluminium bodyshell. Articulated structures in each trailer's end were bolted laterally on end structure. FEM analysis showed that the design satisfied the specified load criteria. This study describes process and result of development of aluminum trailer bodyshell for KHST.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.1479-1481
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• 2007

It is important to evaluate the power quality at a substation when a test train is running. Especially, the Korea Electric Power Company(KEPCO) restrict the power quality generated from the electrical train within limited value. So, this paper represents the results of the power quality test when Hanvit 350 is running at the KTX high speed line and the assessment.

• Proceedings of the KSR Conference
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• 2001.05a
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• pp.222-229
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• 2001

This paper aims to verify the static strength of a KHST gangway structure including fixed ring and carrying ring according to tile load cases in the defined specification. The structure has been analyzed by the finite element method. Calculation carried out in tile fields of linearity and small deformation. The admissible limit is tile yield strength for the available materials. The analysis results show that Von-Mises stress at some locations of the structure is a little beyond the admissible limit. These results are successfully reflected on the adjusted design.

• Proceedings of the KSR Conference
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• 2002.10b
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• pp.1013-1018
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• 2002

This paper introduces the combined test results of the traction system for Korean High Speed Train. The main purpose of this combined test is to verify the performance of the traction system that is designed to operate up to Maximum 350Km/h speed. Various kinds of experiments are performed to prove total traction system performance and detailed waveforms are described.

• Proceedings of the KSR Conference
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• 2003.05a
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• pp.580-585
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• 2003

Korean high speed train (KHST) has adopted a combined electric/ mechanic (friction) braking system. Electric brakes are consist of rheostatic brake, regenerative brake and eddy current brake and mechanical brakes are composed of disc brake, wheel disc brake and tread brake. In this paper, we introduce the braking performance test and the measuring method of mechanical brake. And disc brake performance has been reviewed by the experimental method. The on-line test of KHST has been carried out up to 260 km/h and proved that the disc braking capacity of KHST is sufficient.

• Proceedings of the KSR Conference
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• 2003.10c
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• pp.461-466
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• 2003

This paper shows the review of the results of G7 project effort's according to analyze the components technology level of mechanical, electrical and communication fields of component industry. Additionally, propose a counterplan for commercialization of Korea high speed railway for the future.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.411-416
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• 2002

The strength evaluation of a wheel is becoming very important due to the high speed of railway system and the reduction of wheel weight. Therefore, in this study, the influence of thermal stress at tread breaking in Korean High Speed Train wheel was investigated using FEM. During FEM analysis, the mechanical load or wheel-rail contract load and braking load were considered. When 300% of the block force was applied, the maximum von Mises stress of 61.0 ㎫ was found at the outside plate around 400mm far away from the wheel center.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.344-350
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• 2002

This paper proposes the Systematic Design Methodology of the Korean High Speed Train. High Speed Train do not operate in isolation and are part of a rail system which is influenced through input and output effects from the environment and from the neighbouring system. To fulfil its overall desired function, such input and output relationships between the systems must be considered in the system boundary conditions. Therefore, the overall interrelationship of all these effects has to be carefully considered during the design process. Here proposed methodology may provide a guide line and criteria for the systematic problem solving method of that highly complex High Speed Train System.

• Proceedings of the KSR Conference
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• 2002.10a
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• pp.98-103
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• 2002

The prototype test train(HSR 350X) was developed and is now being tested in R＆D project for developing Korean High Speed Rolling Stock. International cooperative works with German, Japanese, Danish English and Swiss company were done for reviewing the results made by domestic companies and enhancing their design capability. The main results of cooperation are shown in this paper. In addition, some problems and comments issued during cooperation are also represented.