• 한국철도학회:학술대회논문집
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• 한국철도학회 2007년도 추계학술대회 논문집
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• pp.816-823
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• 2007

As the South Korean rolling stock industry is developing designs for full compliance with the European Standards, it is fitting to take a look at these two core standards. The paper presents an overview of the load cases and structural requirements developed in Europe for the design of safe and compatible rolling stock vehicles. These load cases and structural requirements have been compiled into two standards namely EN12663 and EN15227. Standard EN12663 was developed as a reference design requirements standard. The work was mandated and sponsored by the European Committee for Standardization and Standard issuing National Institutions. EN12663 specifies a series of proof and fatigue load cases for European rolling stock regulations compliant vehicle designs. As EN12663 does not address the crashworthiness issue, a dedicated crashworthiness standard, EN15227, was therefore developed in a similar manner through industry wide consultations managed by a Trans-European working group of experienced engineers and specialists. In both standards, the vehicle and/or trains are grouped into categories reflecting the vehicle types and/or their indented operational function. EN15227, developed to complement EN12663, addresses the "passive" crashworthiness capability of the vehicles and trains. EN15227 specifies reference crash scenarios similar to those found in the Technical Specification for Interoperability (TSI) of high speed trains operating in Europe. The overview also touches on a general comparison with the corresponding British Group Standard (GM/RT2100) and also the UIC leaflet based load cases. The exercise is extended to pertinent design load cases specified by the Federal Railroad Administration (FRA) in the US.

• 한국철도학회논문집
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• 제20권2호
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• pp.173-181
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• 2017

장애물제거기는 선로 내 장애물에 의한 충돌사고 발생 시 장애물을 선로 밖으로 밀어내거나 에너지흡수부재를 통해 충돌에너지를 흡수하여 열차 탈선을 방지하고 충돌사고에 의한 피해를 최소화하기 위한 장치이다. 본 연구에서는 인장형 에너지흡수부재와 4절 링크를 이용하여 장애물제거기의 작동 메커니즘을 구성하여 장애물제거기를 설계하였다. 또한 EN 15227에서 요구하는 정적강도 및 에너지흡수조건을 확인하기 위한 성능검증시험 방법을 고안한 뒤 유한요소해석 및 UTM (Universal Test Machine)을 이용한 성능검증시험을 수행하였다. 본 연구를 통해 EN 15227의 요구조건을 만족하는 장애물제거기를 개발하였으며, 제안된 장애물제거기의 설계 및 검증 절차에 따라 붕괴하중의 조절이 가능하며 이를 실험을 통해 검증할 수 있는 방법을 제안하였다.

• 한국자동차공학회논문집
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• 제23권5호
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• pp.524-536
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• 2015

The paper aims to design and verify tearing tube type energy absorption device applied in tram to ensure safety in case of collision accident. Energy capacity of tearing tube is determinated based on EN15227 and Standard Collision Scenarios Criterion in Detail in Republic of Korea. Tearing tube is designed based on theoretical model suggested by X.Huang et al. and assumption by T.Y. Reddy et al. Real scale collision tests are conducted to analyze the energy absorption characteristics and deformation mode. Bending of curl tips is absorbed collision energy when curl tips and tube body are contacted to each other from the tests and we suggest and include the formula on bending of curl tips in theoretical model.