| Title |
Development of a Steady Arm for the Maximum Speed of 400 km/h |
| Authors |
이기원(Lee, Kiwon) ; 박영(Park, Young) ; 권삼영(Kwon, Sam-Young) ; 조용현(Cho, Yong Hyeon) ; 정헌수(Jeong, Heonsoo) |
| DOI |
https://doi.org/10.5370/KIEE.2014.63.12.1742 |
| Abstract |
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. |