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사물인터넷 기반 장력조정장치 상태 모니터링 시스템 구현
이기원(Kiwon Lee),나경민(Kyung-Min Na),박영(Young Park),조호령(Ho-Ryung Cho) 대한전기학회 2019 전기학회논문지 Vol.68 No.8
The contact wire made of copper or copper alloy is installed to keep a good current collection performance between a pantograph and catenary system. The tensioning device installed in a contact and messenger wire is required to have high reliability as a major component of the feeding facility which keeps constant tension of the wires regardless of temperature changes. The maintenance of the tensioning device is generally performed by the man power. In this paper, we propose a condition monitoring system for a spring tension device using sensor network and communication based on Internet of Thing. The proposed monitoring system is composed of a structure integrated with tensioning device by applying an ultrasonic sensor with minimum power consumption and communication device. It was able to monitor the dynamic state of the tensioning device according to temperature change n real time through the displacement of ultrasonic sensor.
이기원(Kiwon Lee),권삼영(Samyoung Kwon),김주락(Joorak Kim),창상훈(Sang-Hoon Chang) 한국철도학회 2003 한국철도학회 학술발표대회논문집 Vol.- No.-
Even if tracks cross each other, a train has to maintain a good current collection. Where catenary cross each other, it is called a crossover. Based on the cause analysis for a breakdown accident of pantograph occurred in the crossover on Ansan-line, a theoretical background and recommendation for the installation rule of a crossover are presented in the paper.
이기원(Lee Kiwon),조용현(Cho Yong Hyeon),박영(Park Young),민병일(Min Byungil),권삼영(Kwon Samyoung),석창성(Seok Chang-Sung) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
In the electrical railway, for the improvement of a train speed, it is necessary to study not only the dynamic behaviors of overhead catenary system but the fatigue behaviors of components for a safety assurance according to the increase of vibration level. One of the critical components in the system is a dropper. Therefore, the dynamic force acting on a dropper was measured in the Chungbuk Line and analyzed to figure out the dynamic characteristics the dropper. And in order to assure the safety of dropper clamp and cable, we proposed a test facility as well as test method based on the test results. For the further study, we will measure the dynamic forces in the conventional line and high-speed line and make up the test condition, so that the safety of dropper clamps can be assured.
전주 위치 설계 지원 프로그램 개발 (I) : 유기적 3차원 설계 기법을 중심으로
이기원(Kiwon Lee),조용현(Yong Hyeon Cho),권삼영(Sam-Young Kwon),이태권(Taekwon Lee) 한국철도학회 2011 한국철도학회 학술발표대회논문집 Vol.2011 No.10
The detail design of overhead line can be dievided into a pegging plan and MD(Mounting Diagram) process. A program can perform a MD process was already developed and used in Honam High-Speed project. In this study a pegging plan program which can perform mast distribution automatically is developed. The system is developed based on dot net framework 4.0 and Civil3D 2012 and used spread 4.0 component for grid UI. It can not be directly used a rail horizontal alignment and long-section profile together on drawing. Therefore using Civil3D mathematical alignment and profile of rail can be accomplished. And this program has an advantage of user friendly operation because of close relationship between the two.
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.