• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.06a
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• pp.780-783
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• 2003

In this study, As The Tae Yang Metal company manufactured oil tank inserts welding structure bogie, it is Contributed in stability security of freight car of oil tank through static load test, dynamic characteristics analysis. vibration performance test etc. to verify intensity of bogie frame ＆ body structure

• Proceedings of the KSR Conference
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• 2010.06a
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• pp.1533-1541
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• 2010

Multi-purpose freight car is applicable for both bulk freight and containerized freight to cope with the unbalance between demand and supply due to the demand variation by seasons or directions. In this paper, we suggested the advantages of introducing attachable container to railway freight transportation and possible freight items to use multi-purpose freight car. This results can be used to analyse the amount of attachable container and the feasibility of introducing multi-purpose freight car to railway.

• Proceedings of the KSR Conference
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• 2007.11a
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• pp.959-964
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• 2007

In this study, it is offering a numerical method which assesses running safety of the freight car loaded CWR when passing through on the conventional railway by additional lateral load. It is suggested based on the numerical reviews of the safety against derailment after seeking the derailment coefficient estimated by wheel load-lateral force equation in the section that curve radius is small

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.04a
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• pp.181-182
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• 2002

휘발성유기화합물(Volatile Organic Compounds: VOCs)은 석유화차광장, 정유공장, 도료공장, 도장공장 등의 제조공정 및 저장시설로부터 주로 발생되며, 증기압이 높아 대기 중으로 쉽게 증발되고 대기 중에서 질소산화물들과 광화학반응을 일으켜 광화학스모그를 유발시키는 물질로 대기 중의 오존층을 파괴하고 인체에 매우 유해한 물질로 알려져 있다. (중략)

• Proceedings of the KIEE Conference
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• 2004.10a
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• pp.235-236
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• 2004

도로교통분야에서 발전된 위치기간서비스기술을 철도에 응용함으로써, 철도이용의 편의성을 향상시키고 철도의 경쟁력을 향상시키고, 비상사태 발생시의 긴급재난 경고 서비스를 비롯하여, 열차나 화차/화물등의 위치를 실시간으로 추적관리하여 운영의 효율성을 향상시키는 등 그 적용을 확대하기 위하여, 그 기반 인프라라고 할 수 있는 철도무선통신네트워크 구성에 대하여 검토하였다.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.133-138
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• 2004

Domestic freight car holding amount is possessing much amount than other vehicle model about 14,000. Problem is happening in bogie device of cast steel structure because is structure that there are many wear departments. Therefore, the KNR is restricting running speed of empty car by 70km/h low. In this research, presented speed elevation way as dynamic characteristic analysis result that use ADAMS and confirm running safety by main line test.

• Proceedings of the KSME Conference
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• 2001.06b
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• pp.507-512
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• 2001

As needs for substitution of excessive road-oriented transport by the railroad increase, we proposed the guideline for development of the high speed freight car up to 150km/h through analyzing the critical speed of welded-type freight car employed and investigating the improvement in its maintenance. This study, the proper design parameters of conical rubber spring was determined to meet the vibration performance.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.242-249
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• 2002

This research suggests the assessment method of the additional lateral force caused bending moment of CWR when a freight car loading it is passing over turnout system or curves. The characteristics of lateral lone are analyzed by calculating the lateral pressure acting on the rails of conventional railway.

• Proceedings of the KSR Conference
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• 2002.05a
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• pp.359-363
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• 2002

The coldproofness should be studied in order to operate the freight car by connecting the South and North Korea Railway. Actually, there is no standard for coldproofness in South Korea Railway, The standard for coldproofness of the Russian Railway, the Chiness Railway and the North Korea Railway was studied. From the analysis of these standards, the standard of coldproofness was proposed for the freight vehicle connecting the South and North Korean Railway.

• Proceedings of the KSR Conference
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• 2003.10c
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• pp.109-113
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• 2003

Recently, freight cars for diverse purposes were developed to increase the speed of freight car in conventional line. The welded type bogies are applied to these vehicles like container car, gondola car, hopper car, etc. This study was focused on the dynamic characteristics and the stability of freight car to guarantee the running safety. We have conducted the running tests of freight cars in conventional line and described the test results in this paper.