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이기원(Kiwon Lee),권삼영(Sam-young Kwon),조용현(Yong Hyeon Cho),정헌수(Heonsoo Jeong),한동섭(Dong Seop Han) 한국철도학회 2012 한국철도학회 학술발표대회논문집 Vol.2012 No.5
호남고속철도 400㎞/h급 Test-bed 건설을 위하여 전차선로 측면에서 각선의 장력과 선종, 드로퍼 배치 등을 변경하여 설계하였다. 그리고 선로환경에 적합한 가동브래킷, 단말금구, 드로퍼 클램프, 장력조정장치, 애자류 등을 개발하고 있다. 또한, 350㎞/h급 전차선로와 비교하여 전차선의 장력을 상승시켰기 때문에 안정된 집전을 위하여 강도 측면에서 새로운 곡선당김금구의 개발이 필수적이다. 따라서, 본 논문에서는 400㎞/h급 곡선당김금구를 개발하기 위하여 호남고속철도 Test-bed 구간의 전차선 장력 상승에 따라 곡선당김금구에 작용하는 최대하중을 계산하였다. 그리고, 강도계산 등을 통하여 새로운 곡선당김금구를 개발하였다. 본 논문의 계산 절차 등은 향후 개발되는 곡선당김금구 설계 등에 활용할 수 있을 것이다. Increasing tensions of contact wire and messenger wire, changing dropper distribution and tec. should be performed in order to construct a test-bed for catenary system in the 400㎞/h speed on Honam high-speed railway. And it is also essential to develop a steady arm, bracket, in this study the maximum force applied to a steady arm under the worst condition was calculated to develop new stady arm. And through a stress analysis and etc, a new steady arm is designed and developed. From the results of this study regarding calculation process it will be possible to estimate the design of the steady arm which will be developed in the future.
이기원(Kiwon Lee),박영(Young Park),권삼영(Sam-Young Kwon),조용현(Yong Hyeon Cho),정헌수(Heonsoo Jeong) 대한전기학회 2014 전기학회논문지 Vol.63 No.12
In order to develop a overhead catenary system for the maximum speed of 400 km/h on Honam high-speed line, increasing tension of contact wire, changing dropper distributions, reducing a hard point and etc. should be considered. And it is also essential to develop core components taking account of the increased tension. Therefore we developed a new steady arm for the max. speed of 400 km/h in this study. FEM (Finite Elements Method) analysis was performed to ensure the strength of the arm. An oval shape was applied to the arm, so that 25 % of strength was increased and 9 % of weight was decreased. And a type test according to the code KRSA-3012 was performed to ensure the performance. Fatigue test in KRRI (Korea Railroad Research Institute)’s test-bed was also performed to evaluate its performance. Some section of the Honam High-speed line was constructed with the developed steady arm.