인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
피인용 0
초록·키워드
Since their opening in April 2004, high-speed railway vehicles have constituted a crucial component of transportation infrastructure, requiring continuous maintenance efforts. The high-speed railway vehicle has adopted a time-based preventive maintenance system initially introduced with the KTX through technology transfer from overseas; high-speed railway vehicles developed with domestic technology have also followed this system. However, the prevailing traditional labor-intensive maintenance inspection method is costly and dangerous, and demands substantial labor and expertise. This study focuses on the cost-benefit and economic mplications of deploying inspection robots for the maintenance of high-speed railway vehicles, specifically for inspection of the underbody and running gear components. The analysis revealed that the basic maintenance duration was reduced by approximately 30% for a 10-car train, enabling increased train availability. Economic analysis of implementation of inspection robots indicated that the net present value would attain $5,000,000 by the fifth year, relative to an initial investment of $2,400,000. Furthermore, the benefit-cost ratio would exceed 3.0, demonstrating that benefits exceed costs, and the internal rate of return would reach 53%, indicating strong economic viability.
본문·목차
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