• 대한기계학회:학술대회논문집
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• 대한기계학회 2008년도 추계학술대회A
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• pp.907-910
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• 2008

The wheel radiation noise characteristic of Korean tilting train(Hanvit 200) on curved rail under the field test conditions is analyzed in this paper. The test railroad track was selected from Seodaejon to Songjeongri in Honam line. $5^{th}$ and $6^{th}$ car are decided to measure radiation noise level among a train of six cars. The test subject curve radius executed from R400, R500, R600, R700 and R800 segments. The speed of test trains when from R600 and R800 curves existing operation speed and speed up 20% of existing speed. On curved rail at the time of operation speed of Hanvit 200 trains from below 95km/h wheel radiation noise level at $94dBA{\sim}99dBA$, the operation speed from between $100km/h{\sim}144km/h$ wheel radiation noise level at $100dBA{\sim}106dBA$.

• 한국소음진동공학회논문집
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• 제18권8호
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• pp.864-871
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• 2008

The tilting trains can run on curve track about 30% faster than conventional train without affecting passenger comfort. As the tilting trains offer the optimum means of providing faster and more comfortable rail service with minimum of environmental disturbance and capital investment, it is widely adopted for commercial operation all over the world. Over several years, the Korea Railroad Research Institute(KRRI) and Ministry of Construction and Transportation(MOCT) have been developing 200 km/h Korean tilting train, Hanvit200. Hanvit200 adopts the pendulum type tilting mechanism and hybrid car body structure, mainly CFRP combined with steel. In this paper the vibrational characteristics of Hanvit200 was investigated through Eigen vector analysis, modal test and main line running test.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2008년도 춘계학술대회논문집
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• pp.519-524
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• 2008

The tilting trains can run curve track about 30% faster than conventional train without affecting passenger comfort. As the tilting trains offer the optimum means of providing faster and more comfortable rail service with minimum of environmental disturbance and capital investment, it is widely adopted for commercial operation all over the world. Over several years, the Korea Railroad Research Institute(KRRI) and Ministry of Construction and Transportation(MOCT) have been developing 200 km/h Korean tilting train, Hanvit200. Hanvit200 adopt the pendulum type tilting mechanism and hybrid car body structure, mainly CFRP combined with steel. In this paper the vibrational characteristics of Hanvit200 was investigated through Eigen vector analysis, Modal Test and main line running test.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1766-1769
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• 2008

INnterior noise characteristic of Korean tilting train(Hanvit 200) under the field test conditions is analyzed in this paper. The test railroad track was selected from Seodaejon to Songjeongri in Honam line. $4^{th}$ and $5^{th}$ car are decided to measure interior noise level among a train of six cars. The test subject open field executed from test sections. The speed of test trains when from existing operation speed and speed up 20% of existing speed. On open field at the time of operation speed of Hanvit 200 trains from below 160km/h interior noise level at $68dBA{\sim}70dBA$.

• 한국정밀공학회지
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• 제28권5호
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• pp.572-577
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• 2011

Curve squealing of inter-city railway vehicle is a noise with high acoustic pressure and rather narrow frequency spectra. This noise turns out to be very annoying for the people living in the neighborhood of locations and the passenger in railway vehicle where this phenomenon occurs. Squealing is caused by a self-exited stick-slip oscillation in the wheel-rail contact. Curve squeal noise of railway vehicles that passed by a factor of the speed limit, so to overcome in order to improve running performance is one of the largest technology. In the present paper, characteristic of squeal noise behavior at the Hanvit-200 tilting train test-site. Curve squealing of railway wheels/rail contact occurs in R400~ R800 curves with a frequency range of about 4~11 kHz. If the curve is less than the radius of wheel frail contact due to |left-right| noise level difference (dBA) shows a significant effect of squeal noise were more likely.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 정기총회 및 추계학술대회 논문집
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• pp.3027-3031
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• 2011

In this study, By the time that TTX technology is adopted as railway rolling stock, we analyzed quantitatively energy saving by reducing the power consumption with the reduction of the operation time through the speed improvement and suggested the necessity to introduce TTX technology in the domestic rail vehicles. The effect of energy saving by comparing and analyzing the power consumption during the operation by TTX Hanvit 200 and 8200 electric locomotives to pull trains on the same line was suggested and the efficiency of the main devices(i.e C/I) of Hanvit 200 was compared and analyzed by measuring the power consumption by a single unit. For improving KORAIL management environment, reducing energy usage is an urgent challenge, its measures for solving them are constantly considered in many areas. In addition, at the time of improving the conventional track to speed up and changing the signals, Tilting technology will be contributed to the management environment by enlarging the passengers' demand through the reduction of the operation time and saving energy using the existing infrastructure.

• 한국철도학회논문집
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• 제15권4호
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• pp.329-333
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• 2012

본 논문에서는 철도차량에 틸팅 기술 도입시 효과로 연구되고 있는 속도향상에 따른 운전시간 단축과 더불어 전력 소비량 감소로 에너지가 절감되는 것을 정량적으로 분석하여, 국내 철도차량에도 틸팅 기술 도입 필요성을 제시하고자 한다. 이를 위해 동일 노선을 한국형 틸팅 열차인 한빛 200과 8200호대 전기기관차가 견인하는 여객열차로 운행시의 소비전력을 동일 조건으로 환산 후 비교 분석하여 틸팅 기술 접목이 에너지 저감에 미치는 효과에 대하여 분석하였다. 에너지 절약은 세계적인 추세로서, 이의 해결을 위한 대책들을 여러 분야에서 끊임없이 연구하고 있다. 또한 기존선 속도 향상을 위한 선로 개량 및 신호체계 변경 등이 이루어 지고 있는 시점에서, 틸팅 기술을 통해 기존 인프라를 최대한 활용하여 열차 속도를 향상시킬 수 있다면 운전시간 단축을 통한 여객 수요 증대와 에너지 절감으로 경영개선에 크게 기여 할 수 있으리라 판단된다.

• 제어로봇시스템학회논문지
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• 제15권2호
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• pp.231-239
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• 2009

Traction and braking of trains are due to the rolling contact of the wheel on the rail, and the rolling contact is fundamental to an understanding of the behavior of the railroad system. The way in which the forces are transmitted in the rolling contact is complex and highly nonlinear. This paper describes a rolling contact theory, a creepage model between wheel and rail, and a dynamic model of the tilting train Hanvit-200. The validity of the model is verified through simulation study using Simulink.

• 조명전기설비학회논문지
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• 제23권12호
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• pp.58-65
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• 2009

최근 한국철도기술연구원이 개발한 한국형 틸팅열차(TTX) "한빛 200"은 현재 호남선, 중앙선, 충북선 그리고 태백선에서 시험 운행 중에 있다. 본 논문은 TTX가 기존선로에서 시험 운행하는 동안 TTX에 공급되는 전압을 계측 하여 각 기존선로에서 공급하는 전압의 상태를 분석하였다. TTX에 공급되는 전압을 직접 계측하기 위해 TTX의 판토그래프 밑단인 부분에 PT를 설치하여 변압기 1차측 전압을 계측하였다. 정확한 분석을 위해 계측 시 TTX외의 다른 열차와 교차 상황과 주변상황에 대해 기록하였으며, CBEMA 커브를 이용하여 가선전압 상태에 대한 분석을 하였다. 그 결과 호남선, 중앙선, 태백선 모두 정격전압(25[kV])의 110[%]이상의 전압이 200[s]이상 공급되는 구역도 있었으며 빈번하게 110[%]를 초과하고 있는 것으로 분석됐다. 특히 태백선의 가선전압의 상태가 가장 좋지 않은 것으로 분석됐다. 이렇게 가선전압 분석결과는 앞으로 중앙선 및 태백선에 상용화될 TTX의 동력장치 및 전력변환장치를 안정화하는데 도움이 될 것으로 사료된다.