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고속전기철도 변전소 제어케이블 번호부여체계 표준화에 관한 연구
안승화(An Seung-Hwa),김시구(Kim Si-Koo),김백(Kim baik),노성찬(Rho Sung-Chan),정상기(Jung Sang-ki),안영훈(Ann Young-Hoon) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
In this paper, a study an standardization of control cable numbering for high speed railway substation. Standard numbering structure of substation control cable and consistency of the number system are important for the railway substation construction and maintenance. However, currently control cable number system of railway substation was not standardization which was different according to a bander and a construct company. Therefor there is many difficult which does a same function to differ in maintenance and repair to accident. Therefor Standardizes the number system of the substation control cable is useful for an improve of construction and maintenance.
박지원(Jee-Won Park),안성찬(Sung-Chan Ann),김원현(Won-Hyun Kim),손정호(Jung-Ho Son) 한국마린엔지니어링학회 2007 한국마린엔지니어링학회 학술대회 논문집 Vol.2007 No.-
The valvetrain system in medium-speed diesel engine which transmits dynamic force from rotating cam to reciprocating valve and determines bow much air and exhaust gas can pass into a combustion chamber is very essential for engine performance. This system has a complex mechanism by contact and linkage system, and each part has a different motion and diverse frictional characteristics. To improve performance and to guarantee durability, the dynamic analysis and structural analysis are basically required. In this paper, a systematic approach of evaluating fatigue strength and dynamic characteristics for main parts such as rocker arm, yoke and pushrod is presented. From a series of structural analysis and dynamic analysis by a professional in-house program, durability of the components and stability of the valvetrain system are investigated.