A Study on RAMS application to develop Advanced Electrical Multiple Unit

초록

We has been developed new type of EMU (Electric Multiple Unit) so called advanced EMU and trying to analyze RAMS. An advanced EMU has been developed to improve reliability, safety, maintainability, energy efficiency and environmental friendship. Several new technology and system are developed and adopted to the advanced EMU. The followings are the developed and adopted system in this project. DDM(Direct Drive Motor), plug-in door, sliding step, wide gangway, pure electric braking system, single arm pantograph, individual motor control system and passenger information system. Since these new developed system influences to the RAMS(Reliability, Availability, Maintainability, Safety) factor, we suggest new RAMS target and RAM prediction plan to design and develop Advanced EMU. After that, RAMS demonstration will be processed by testing the system on the specific test line to review RAMS prediction and enhance reliability of advanced EMU. This paper represents the RAMS procedure to apply to the advanced EMU based on the referenced RAMS standards.