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복합재료를 적용한 한국형 고속틸팅열차(TTX)의 차체 구조해석 연구
신광복(Shin Kwang-Bok),구동회(Koo Dong-Hoe),박기진(Park Kee-Jin) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
The use of composite materials for the carbody structures of tilting train has many advantages because of manufacturing variety, specific high-strength & stiffness characteristics, and long-life durability, but the strongest advantage is the possibility of lightweight product. In the leading countries, the composite materials are used for the material for drivers" cabs, interior/exterior equipments for railway train, and it is now developing the composite materials applied for the train carbody structure. In this paper, we conducted the evaluation of structural stability for the all aluminum carbody, all composite carbody and hybrid carbody structures of the Korean Tilting Train eXpress(TTX) with the service speed of 180㎞/h.
180㎞/h급 한국형 틸팅열차 복합재 차체 구조물의 안정성 평가
신광복(Kwang Bok Shin),한성호(Seoung Ho Han),박기진(Kee Jin Park) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.8
Using composite materials for the carbody of tilting train has many advantages such as manufacturing variety, specific high-strength & stiffness characteristics, and long-life durability, but the strongest advantage could be the possibility of lightweight product. In the leading countries, the composite materials are used for the material for drivers' cabs, interior/exterior equipments for railway train, and it is now developing the composite materials applied for the train carbody structure. In this paper, we conducted the evaluation of structural stability for the aluminum and composite carbody of the Korean Tilting Train eXpress(TTX) with the service speed of 180㎞/h.
신광복(Shin Kwang-Bok),한성호(Hahn Seong-Ho) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
In order to evaluate the strength of carbody structures of railway rolling stock made of laminated fiber-reinforced composite materials, total laminate approach was introduced. Structural analyses were conducted to check the basic design of the hybrid composite carbody structure of the Korean Tilting Train eXpress(TTX) with the service speed of 180㎞/h. The mechanical tests were also conducted to obtain strengths of composite laminates. The results shown that all stress components of composite carbody structures were inside of failure envelopes and total laminate approach was recommended to predict the failure of composite carbody structures at the stage of the basic design.
신광복(Shin Kwang-Bok),조세현(Cho Se-Hyun),이상진(Lee Sang-Jin) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
The hybrid composite carbody structures were considered as the carbody system of Korean Tilting Train express(TTX) to achieve the lightweight design. The TTX carbodies are composed of the carbody shell made of the sandwich composite structure and the underframe made of the metal structure. The sandwich structures were used to minimize the weight of carbody, and the metal underframe was used to modify the design easily and to keep the strength of underframe by the installation of the electrical equipments. The sandwich carbody structures will be cured in an autoclave. In this paper, the manufacturing processes of the TTX carbody structures were introduced briefly.
신광복(Shin Kwang-Bok),류봉조(Ryu Bong-Jo),이재열(Lee Jea-Youl),이상진(Lee Sang-Jin),조세현(Jo Se-Huen) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
We have evaluated the structural integrity of a sandwich composite train roof which can find a lightweight, cost saving solution to large structural components for rail vehicles in design stages. The sandwich composite train roof was 11.45 meter long and 1.76 meter wide. The reinforced frame was inserted in sandwich panels to improve the structural performance of train roof structure and had the shape of hollow rectangular box. The finite-element analysis was used to calculate the stresses, deflections and natural frequencies of the sandwich composite train roof against the weight of air-condition system. The 3D sandwich FE model was introduced to simulate the hollow aluminum frames which jointed to both sides of the sandwich train roof. The results shown that the structural performance of a sandwich composite train roof under load conditions specified was proven and the use of aluminum reinforced frame was beneficial with regard to weight savings in comparison to steel reinforced frame.